UniProt: the universal protein knowledgebase in 2021

Alex Bateman, María Martin, Sandra Orchard, Michele Magrane, Rahat Agivetova, Shadab Ahmad, Emanuele Alpi, Emily Bowler-Barnett, Ramona Britto, Borisas Bursteinas, Hema Bye‐A‐Jee, Ray Coetzee, Austra Cukura, Alan Da Silva, Paul Denny, Tunca Doğan, ThankGod E. Ebenezer, Jun Fan, Leyla Jael Castro, Penelope Garmiri, George P. Georghiou, Leonardo Jose da Costa Gonzales, Emma Hatton-Ellis, Abdulrahman Hussein, Alexandr Ignatchenko, Giuseppe Insana, Rizwan Ishtiaq, Petteri Jokinen, Vishal Joshi, Dushyanth Jyothi, Antonia Lock, Rodrigo López, Aurélien Luciani, Jie Luo, Yvonne Lussi, Alistair MacDougall, Fábio Madeira, Mahdi Mahmoudy, M. Menchi, Alok Mishra, Katie Moulang, Andrew Nightingale, Carla Susana Oliveira, Sangya Pundir, Guoying Qi, Shriya Raj, Daniel L Rice, M. Rodríguez-López, Rabie Saidi, J. H. Sampson, Tony Sawford, Elena Speretta, E. B. Turner, Nidhi Tyagi, Preethi Vasudev, Vladimir Volynkin, Kate Warner, Xavier Watkins, Rossana Zaru, Hermann Zellner, Alan Bridge, Sylvain Poux, Nicole Redaschi, Lucila Aimo, Ghislaine Argoud‐Puy, Andrea H Auchincloss, Kristian B. Axelsen, Parit Bansal, Delphine Baratin, Marie-Claude Blatter, Jerven Bolleman, Emmanuel Boutet, Lionel Breuza, Cristina Casals‐Casas, Edouard de Castro, Kamal Chikh Echioukh, Elisabeth Coudert, Beatrice Cuche, Mikael Doche, Dolnide Dornevil, Anne Estreicher, Maria Livia Famiglietti, Marc Feuermann, Elisabeth Gasteiger, Sébastien Géhant, Vivienne Baillie Gerritsen, Arnaud Gos, Nadine Gruaz-Gumowski, Ursula Hinz, Chantal Hulo, Nevila Hyka‐Nouspikel, Florence Jungo, G. Keller, Arnaud Kerhornou, V. Lara, Philippe Le Mercier, Damien Lieberherr, Thierry Lombardot, Xavier Martín, Patrick Masson, Anne Morgat, Teresa Batista Neto, Salvo Paesano, Ivo Pedruzzi, Sandrine Pilbout, Lucille Pourcel, Monica Pozzato, Manuela Pruess, Catherine Rivoire, Christian J A Sigrist, Karin Sonesson, André Stutz, Shyamala Sundaram, Michael Tognolli, Laure Verbregue, Cathy Wu, Cecilia N. Arighi, Leslie Arminski, Chuming Chen, Yongxing Chen, John S. Garavelli, Hongzhan Huang, Kati Laiho, Peter B. McGarvey, Darren A. Natale, Karen Ross, C R Vinayaka, Qinghua Wang, Yuqi Wang, Lai-Su Yeh, Jian Zhang, Patrick Ruch, Douglas Teodoro · 2020 · bioinformatics · 10.1093/nar/gkaa1100 · record bateman2020-uniprot-the-universal-protein-know
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disease 6 fields · standard 3 fields · alternative splicing 2 fields · findability 2 fields · Alzheimer's disease 2 fields · Application Programming Interfaces 2 fields · and 4 more →

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UniProt Knowledgebase UniProt Archive historical obsolete sequences Complete Proteome Detector BUSCO validated Peptide identifications comprehensive, high-quality and freely accessible set of protein sequences functional information sequence redundancy proteome completeness and quality reviewed entries unreviewed entries credit-based publication submission interface dedicated portal Association-Rule-Based Annotator (ARBA) ARBA complete compendium of all known protein sequence data experimentally verified computationally predicted reviewed UniProtKB/Swiss-Prot entries unreviewed UniProtKB/TrEMBL entries expert biocuration team automated systems UniRef databases sequence identity UniParc central hub 180 other resources Findable, Accessible, Interoperable and Reusable FAIR stable and traceable identifiers Application Programming Interfaces File Transfer Protocol (FTP) downloads proteomes complete set of proteins believed to be expressed by an organism INSDC source databases viral proteomes Benchmarking Universal Single-Copy Orthologs complete, duplicated, fragmented, and potentially missing genes near-universal single copy orthologs incomplete and poor-quality proteomes different quality and completeness metrics standard close to standard outlier Reference Proteome Reference Proteome set research community computational clustering best annotated proteome gene-centric subset of representative proteins full proteome isoforms representative proteome redundant proteome sequences stable proteome identifiers findability UniRef protein sequence clusters sequence similarity searches gene prediction pan proteomes core and accessory proteomes time taken to perform UniRef50 clustering MMseqs2 algorithm UniRef50 clustering Expert curation hierarchical searches experimental data human readable summaries structured vocabularies Gene Ontology (GO) Rhea knowledgebase biochemical reactions chemical ontology ChEBI reaction participants chemical structures chemical transformations InChIKeys pseudoenzymes functional impact of human variation clinical significance ACMG-AMP pathogenicity calculator ClinVar alternative splicing splice isoform proteins functional diversity of proteins post-translational proteolytic cleavage mature amino-acid chains polyprotein multiple bioactive proteins or peptides machine-readable functional annotations specific isoforms polyprotein cleavage products binary protein interactions IMEx Consortium pre-release dataset COVID-19 disease portal COVID portal protein functionality 3D-structure complex formation standard 8-weekly UniProt release cycle disease-centric access points Alzheimer's disease disease-related amino-acid variant Automatic annotation InterPro UniRule system rule mining techniques UniFIRE UniProt Rule Markup Language eight different predictors superfamily, family and subfamily levels functional domains important sites experimentally uncharacterized proteins known experimentally characterized proteins multiclass, self-training annotation system SAAS system concise annotation models data exclusion set human-readable rules ARBA rules combined coverage of the rule-based annotation systems uncharacterized protein names domain X containing protein intrinsically disordered (ID) protein regions consensus-based prediction of long disorder ProtVista visualisation tool pre-calculated mapping Aligning variants to protein features PSI Extended FASTA Format PEFF Proteins API large-scale datasets genomic coordinates GRCh38 version of the human genome specific variants disease resistance to a drug mechanistic insights mass spectrometry proteomic data ProteomeXchange Consortium Community submission controlled list tracker tool ORCID researcher personal ID model organism databases experienced curator community contribution articles and annotations user-centered design process UniProt interaction viewer ProtVista viewer Nightingale lightweight, flexible, and modular components proteome redundancy removal RESTful Application Programming Interface stable URLs SPARQL API SPARQL endpoint eight weeks reference framework for multiscale biomedical data integration and analysis automatic annotation pipelines template entries information transfer to proteins in related species programmatic access system-or-tool-building
Method, as described: description of a curated resource: expert biocuration for reviewed entries, rule-based automation for unreviewed ones, BUSCO and an in-house detector for proteome quality

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Abstract. Abstract research_questionconcepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗content_tagsThe aim of the UniProt Knowledgebase is to provide users with a comprehensive, high-quality and freely accessible set of protein sequences annotated with functional information. alternativesIn this article, we describe significant updates that we have made over the last two years to the resource. The number of sequences in UniProtKB has risen to approximately 190 million, despite continued work to reduce sequence redundancy at the proteome level. We have adopted new methods of assessing proteome completeness and quality. We continue to extract detailed annotations from the literature to add to reviewed entries and supplement these in unreviewed entries with annotations provided by automated systems such as the newly implemented Association-Rule-Based Annotator (ARBA). We have developed a credit-based publication submission interface to allow the community to contribute publications and annotations to UniProt entries. alternativesWe describe how UniProtKB responded to the COVID-19 pandemic through expert curation of relevant entries that were rapidly made available to the research community through a dedicated portal. UniProt resources are available under a CC-BY (4.0) license via the web at https://www.uniprot.org/ . concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗sensessensesINTRODUCTION content_tagsThe UniProt databases exist to support biological and biomedical research by providing a complete compendium of all known protein sequence data linked to a summary of the experimentally verified, or computationally predicted, functional information about that protein. object_of_studyclaim_typemechanismslimitationsconcepts↗concepts↗concepts↗sensessensesconcept_edgescontent_tagscontent_tagscontent_tags↗The UniProt Knowledgebase (UniProtKB) combines reviewed UniProtKB/Swiss-Prot entries, to which data have been added by our expert biocuration team, with the unreviewed UniProtKB/TrEMBL entries that are annotated by automated systems. The UniRef databases cluster sequence sets at various levels of sequence identity and sensesconcept_edgesthe UniProt Archive (UniParc) delivers a complete set of known sequences, including historical obsolete sequences. unhoused_relationsUniProt additionally integrates, interprets, and standardizes data from multiple selected resources to add biological knowledge and associated metadata to protein records and acts as a central hub from which users can link out to 180 other resources. In recognition of the quality of our data, and the service we provide, UniProt was recognised as an ELIXIR Core Data Resource in 2017 ( 1 ) and received the CoreTrustSeal certification in 2020. claim_relationsThe data resource fully supports the concept_edgesFindable, Accessible, Interoperable and Reusable (FAIR) data principles ( 2 ), for example by making data available in a number of community recognised formats, such as text, XML and RDF and via Application Programming Interfaces (API)s and File Transfer Protocol (FTP) downloads, providing stable and traceable identifiers for protein sequence and protein sequence features and by fully evidencing our data sources throughout. We have also reviewed and updated our data licencing policies. UniProt is continually evolving to meet new challenges while still working to capture all available protein sequence data and to curate the ever-increasing amount of functional data described in the scientific literature. alternativesIn our last update published in this journal in 2019 ( 3 ), we described how we are responding to the growth in microbial protein sequence records, largely derived from high-quality metagenomic assembled genomes. These will increasingly be added to by large-scale eukaryotic sequencing programs, such as the Darwin Tree of Life ( www.darwintreeoflife.org ) and Earth Biogenome ( www.earthbiogenome.org ) projects. limitationsclaim_relationscontent_tagscontent_tagsCollectively, these have already resulted in the number of entries contained in UniProtKB growing by >65 million records, an increase of >50% in just 2 years. As the volume of sequence data continues to grow, we will continue to explore different ways to ensure database sustainability and scalability whilst still providing the best possible service to our user community. concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗PROGRESS AND NEW DEVELOPMENTS Growth of sequence records in UniProt limitationscontent_tagsUniProt release 2020_04 contains over 189 million sequence records (Figure 1 ), with >292 000 proteomes, the complete set of proteins believed to be expressed by an organism, originating from completely sequenced viral, bacterial, archaeal and eukaryotic genomes available through the UniProtKB Proteomes portal ( https://www.uniprot.org/proteomes/ ). The majority of these proteomes continue to be based on the translation of genome sequence submissions to the INSDC source databases—ENA, GenBank and the DDBJ ( 4 )—supplemented by genomes sequenced and/or annotated by groups such as Ensembl ( 5 ), NCBI RefSeq ( 6 ), Vectorbase ( 7 ) and WormBase ParaSite ( 8 ). Viral proteomes are manually checked and verified and periodically added to the database. Figure 1. Growth in the number of entries in the UniProt databases over the last decade. concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗sensesUniProt proteomes provide the set of proteins currently believed to be expressed by an organism. Previously, this dataset only consisted of complete proteomes derived from fully sequenced genomes. This has now been updated to enable the user to access a wider set of proteomes with different quality and completeness metrics. contributionlimitationscontrolsconcepts↗content_tagsTo enable researchers to evaluate proteome completeness and expected gene content, we have concept_edgesadopted the BUSCO (Benchmarking Universal Single-Copy Orthologs) scoring method for vertebrate, arthropod, fungal, and prokaryotic organisms on the Proteomes portal, in addition to providing details of species and the protein count. BUSCO v3 ( 9 ) identifies complete, duplicated, fragmented, and potentially missing genes by comparison to a defined set of near-universal single copy orthologs. As a result of our adoption of the BUSCO algorithm, a number of incomplete and poor-quality proteomes were identified and removed from UniProtKB. The Proteomes webpage has been redesigned to enable users to view full details of their proteome(s) of interest in a single table view (Figure 2 ). method↗mechanismscontrolsconcepts↗sensescontent_tagscontent_tags↗content_tagsWe also display the results of the ‘Complete Proteome Detector’ (CPD), an in-house algorithm, which statistically evaluates the completeness and quality of each proteome by directly comparing it to those of a group of at least three closely taxonomically related species. The CPD classifies each proteome as either ‘standard’, ‘close to standard’ or an ‘outlier’, according to protein count vs. the standard distribution of protein count expected for completeness in comparison to a cluster of closely related organisms ( https://www.uniprot.org/help/assessing_proteomes ). We additionally provide the assessment of the genome assembly status imported from the source of the genome assembly and annotation (e.g. Ensembl or RefSeq). Users may sort by BUSCO or CPD score and/or filter by membership of the Reference Proteome set (∼7% of total proteomes) unhoused_relationsunhoused_relationssensesA Reference Proteome is one that has been selected either by the research community or by computational clustering ( 10 ) as providing the best annotated proteome in their cluster and is stably maintained as the chosen representative unless a higher quality proteome is identified in that cluster. UniProt Proteome pages now also provide a link to download a one-to-one protein set for the corresponding number of unique genes found in the genome. For each gene, a single protein sequence is algorithmically chosen from the proteome. sensesconcept_edgesThis allows users to get a gene-centric subset of representative proteins for a given genome, as opposed to the full proteome which includes all proteins (e.g. including isoforms) that map to the genome. Figure 2. Bacillus subtilis proteomes viewed on the Proteomes webpage with BUSCO and CPD scores. The left-hand panel suggests further option by which the user could filter the data, for example by only selecting reference proteomes. phenomenonmechanismscontent_tagsAs previously described ( 3 ), concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗we continue to remove almost identical proteomes of the same species from UniProtKB ( https://www.uniprot.org/help/proteome_redundancy ), leaving only a relevant representative proteome in that section of the database. unhoused_relationsThe redundant proteome sequences are available through UniParc to researchers and stable proteome identifiers (of the form UPXXXXXXXXX, where Xs are integers) are maintained for each redundant proteome to ensure findability. UniRef protein sequence clusters facilitate sequence similarity searches, functional annotation, gene prediction, and genome and proteome comparisons. concept_edgesWe have adopted the MMseqs2 algorithm to improve the speed of UniRef production ( 11 ), decreasing the time taken to perform UniRef50 clustering from four weeks to 60 hours, and improved procedures to compute proteome clusters and identify representative proteomes, pan proteomes, and core and accessory proteomes. concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗sensesExpert curation The evaluation of experimental data published in the scientific literature, and summarizing key points of biological relevance in the appropriate reviewed UniProtKB/Swiss-Prot record, is fundamental to the operation of the UniProt database. The functional information extracted from the literature is added both in the form of human readable summaries and via structured vocabularies, such as the Gene Ontology (GO) ( 12 ). The curators also work to improve the computational accessibility of UniProt records, for example updating and replacing the existing textual descriptions of biochemical reactions in UniProtKB using the Rhea knowledgebase of biochemical reactions ( 13 ). Rhea ( 14 ) uses the chemical ontology ChEBI (Chemical Entities of Biological Interest) ( 15 ) to describe reaction participants, their chemical structures and chemical transformations. The complete ChEBI ontology is indexed to support hierarchical searches on the UniProt website so that a user searching on a top-level term such as ‘phosphatidylinositol’ (CHEBI:28874) will find reactions involving derivatives such as 1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate (CHEBI:16618). Users can also search using Rhea identifiers as well as identifiers, names, synonyms and chemical structures (encoded as InChIKeys) from ChEBI. A user-friendly visualization for chemical reactions has also been developed to enable Rhea reactions to be viewed on the website within the appropriate UniProt entry (Figure 3 ). UniProtKB/Swiss-Prot currently includes annotations for 8,058 unique Rhea reactions, which feature in 220 003 distinct UniProtKB/Swiss-Prot protein records (39.1% of all UniProtKB/Swiss-Prot records are annotated with Rhea) (release 2020_04 of 12 August 2020). The annotation of pseudoenzymes has also been reviewed and updated, in collaboration with experts in this field ( 16 ). Figure 3. Catalytic activity comment and Rhea reaction visualized by the reaction graphic for the histone-lysine N -methyltransferase EHMT2 (UniProtKB: Q96KQ7 ). concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗To further ensure our data is both human-readable and also computationally-tractable and continues to adhere to the FAIR principles ( 2 ), we are working to standardize the representation of all existing UniProt data on the functional impact of human variation. UniProtKB/Swiss-Prot has curated over 81 000 variants in 13,000 human protein sequence records from peer-reviewed literature, annotated with information on the functional impact and clinical significance, when known. Over 30 000 of these variants have been associated with Mendelian diseases. Clinical significance is evaluated using the guidelines of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology (ACMG-AMP) ( 17 ) and ClinGen tools such as the pathogenicity calculator ( 18 ), with all clinical interpretations routinely submitted to ClinVar to promote reuse ( 19 ). In addition to the increased use of structured vocabularies to enhance accessibility to UniProtKB records, we have also improved the presentation of the information within each entry. concept_edgesThe vast majority of multi-exon genes undergo alternative splicing to produce a variety of splice isoform proteins, which can potentially increase the functional diversity of proteins. Currently at least 95% of human genes are believed to be alternatively spliced ( 20 , 21 ) resulting in an estimated 75 000 distinct protein coding sequences. concept_edgesPost-translational proteolytic cleavage, where proteins are cleaved to remove some additional amino acid(s) or portion of protein, creates yet more mature amino-acid chains as a single polyprotein may generate multiple bioactive proteins or peptides. We have adapted our data model to capture machine-readable functional annotations for specific isoforms and polyprotein cleavage products, and now provide such knowledge for >5000 protein sequence entries. This enables the users to mine the data to identify cases where alternative protein sequences generated from the same gene have different functions. UniProtKB provides stable identifiers to both isoforms and to post-translationally cleaved chains which are used by many of our collaborators to identify these specific protein sequences in their own resources. This, in turn, has allowed us to further improve our mapping of imported data, for example binary protein interactions imported from the IMEx Consortium of molecular interaction databases are now displayed at the specific isoform/post-processed chain level. The representation of isoform-specific annotations and sequence features has been enhanced in the website to facilitate the exploration of this information in UniProt (Figure 4 ). Figure 4. Information extracted from an entry describing Hepatitis C viral protein (UniProtKB: P27958 ) highlighting annotation added at the processed mature chain level, describing the p21 core protein. (PRO_0000037566). concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗sensesResponding to the COVID-19 pandemic The broad expert knowledge of our curation team enables us to quickly respond to areas of new and rapidly expanding biology. Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) was identified as the cause of the 2019–2020 COVID-19 viral outbreak and ensuing pandemic. Its genome sequence was first made publicly available by the International Nucleotide Sequence Database Collaboration (INSDC) on 10 January 2020 (accession number MN908947 ). UniProt curators specializing in viral proteomes rapidly annotated the proteins encoded by this viral genome, first by similarity to other closely related coronaviruses, and subsequently by updating relevant entries with experimental data as soon as this was published. A pre-release dataset was made publicly available, first as text files on the UniProt FTP site, followed by the launch of a dedicated COVID-19 disease portal in March 2020 ( https://covid-19.uniprot.org ), providing the latest available pre-release UniProtKB data for the SARS-CoV-2 coronavirus and other viral and human entries relating to the COVID-19 outbreak. As the pandemic has progressed, these entries have been prioritized for further update to support global research efforts, with information relating to a more granular understanding of protein functionality, 3D-structure, binary interactions, and complex formation being added when either published or deposited in collaborating resources. concept_edgesThe COVID portal is currently being updated more frequently than the standard 8-weekly UniProt release cycle to ensure the research community accesses these data in a timely manner. The COVID-19 disease portal is a prototype of our intention to provide disease-centric access points to the wealth of data contained in UniProtKB records. Another recent example of a disease-focused curation effort has been the update of records relating to Alzheimer's disease, including proteins containing a disease-related amino-acid variant, their interacting partners and model organism proteins important for our understanding of disease initiation and progression. This work has been supported by clinical researchers active in the field who contributed to a number of workshops held in both the USA and UK and have suggested key protein targets for focused curation ( 22 , 23 ) and provided valuable user input into how this data should be accessed. concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗sensessensesAutomatic annotation The ever-increasing amount of genomic data arising from current sequencing projects means that the proportion of unreviewed records in UniProtKB/TrEMBL describing largely predicted proteins represents by far the largest, and most rapidly growing, section of UniProtKB. These unreviewed records are enriched with functional annotation by systems using the protein classification tool InterPro ( 24 ), which classifies sequences at superfamily, family and subfamily levels, and predicts the occurrence of functional domains and important sites. In UniProtKB/TrEMBL entries, domains predicted by the InterPro member databases PROSITE, SMART or Pfam are used to automatically provide domain annotations. The semi-automated rule-based computational annotation UniRule system ( 25 ) annotates experimentally uncharacterized proteins based on similarity to known experimentally characterized proteins, adding properties, such as protein name, functional annotation, catalytic activity, pathway, GO terms and subcellular location. We continue to increase the number of UniRules used for annotation and this set has now grown to 6768 (release 2020_04) rules in total. To complement the expert guided process of creating UniRules, we have recently (release 2020_04) unhoused_relationsintroduced the Association-Rule-Based Annotator (ARBA), a multiclass, self-training annotation system for automatic classification and annotation of UniProtKB proteins ( 3 ). This replaces the previous rule-based SAAS system. ARBA is trained on UniProtKB/Swiss-Prot, then uses rule mining techniques to generate concise annotation models with the highest representativeness and coverage based on the properties of InterPro group membership and taxonomy. ARBA employs a data exclusion set that censors data not suitable for computational annotation (such as specific biophysical or chemical properties) and generates human-readable rules for each release which are made available at https://www.uniprot.org/arba/ . 22 894 concept_edgesARBA rules were used to annotate 87 325 890 proteins in release 2020_04, increasing the combined coverage of the rule-based annotation systems from 35% to 49% in UniProtKB/TrEMBL. Sequence feature predictions are currently excluded from annotation by ARBA. Additionally, in release 2020_04, more than 15 million uncharacterized protein names have been improved using InterPro member database signatures, updating their name to ‘domain X containing protein’ following the International Protein Nomenclature Guidelines ( https://www.uniprot.org/docs/International_Protein_Nomenclature_Guidelines.pdf ). For example, the uncharacterized Western lowland gorilla protein UniProtKB:G3RLC3 has now been renamed ‘SH2 domain-containing protein’ giving biological information to the user. content_tagsThis system includes adding names based on domains of unknown function (e.g. UniProtKB:A0A009EMH9 DUF4372 domain-containing protein) as, although not immediately informative, it enables protein grouping thus improving the chances of eventually assigning a function to that domain. controlscontent_tagsAll automatic annotations are labelled with their evidence/source. As previously described ( 3 ), UniFIRE is an open-source Java-based framework and tool developed to apply the UniProt annotation rules on given protein sequences and provided by UniProt to share our knowledge in computational annotation and our rule-based systems ( https://gitlab.ebi.ac.uk/uniprot-public/unifire ). This system is freely available for groups to use for in-house protein annotation projects ( 26 ) or to contribute their own rules in the URML (UniProt Rule Markup Language) format which may be reused for the annotation of UniProtKB entries. The automatic annotation systems described above require the presence of an ordered region of protein that can be recognized as a domain or provide a signature of family membership which has been identified by an InterPro member database. However, over 20% of unreviewed proteins in UniProt do not contain any InterPro signature regions, and many InterPro signatures are not associated with transferable annotation. The largest part of missing annotation seems to derive from intrinsically disordered (ID) protein regions, therefore we have collaborated with the MobiDB-lite resource to provide a consensus-based prediction of long disorder ( 27 ). The method uses eight different predictors to derive a consensus which is then filtered for spurious short predictions. 109 144 661 predictions of regions of disorder, plus those described as ‘Basic’, ‘Polar’, ‘Acidic’, ‘Polyampholyte’ and ‘Pro-’ or ’Cys-rich’ have been added to 37 286 893 unreviewed entries and it is planned to also import these annotations into the appropriate UniProtKB/Swiss-Prot entries. concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗sensesData Integration UniProtKB integrates large-scale datasets, mapping these data onto the appropriate protein sequence records and displaying the mappings via the ProtVista visualisation tool ( 28 ) and downloadable via FTP and APIs ( 29 ). Clinically relevant sources of variation (e.g. 100K genomes, gnomAD and ClinVar SNPs) are mapped to protein features and variants using a pre-calculated mapping of the genomic coordinates for the amino acids at the beginning and end of each exon and the conversion of UniProt position annotations to their genomic coordinates ( 30 ). Functional positional annotations from the UniProt human reference proteome are now being mapped to the corresponding genomic coordinates on the GRCh38 version of the human genome for each release of UniProt. These mappings are also available as BED files or as part of a UniProt genomic track hub and can be downloaded from the UniProt FTP site ( www.uniprot.org/downloads ). unhoused_relationsAligning variants to protein features, such as functional domains and active sites, ligand binding sites and PTMs in the UniProt record, can provide mechanistic insights into how specific variants can lead to disease or resistance to a drug or to a pathogen. UniProt additionally integrates and visualizes unique and non-unique peptides identified by mass spectrometry proteomic data deposited through the ProteomeXchange Consortium ( 31 ) (e.g. PeptideAtlas ( 32 ), MassIVE ( 33 ) and jPOST ( 34 )) and other large-scale initiatives (CPTAC ( 35 ), ProteomicsDB ( 36 ), MaxQB ( 37 ), ETD and CTDP ( 38 )). mechanismsconcepts↗concepts↗sensesconcept_edgescontent_tagscontent_tags↗content_tagscontent_tags↗Peptide identifications can be taken as evidence that a protein has been validated (PE = 1) using a variation of the HPP guidelines (in brief, at least two unique peptides of seven amino acids or more or, for proteins where this cannot be achieved due to sequence constraints, one unique peptide of ten amino acids or more has been mapped to a protein). concept_edgesUniProt also provides the new format PEFF (PSI Extended FASTA Format) proposed by the HUPO-PSI (Human Proteome Organization-Proteomics Standard Initiative) for sequence databases ( 39 ) to be used by sequence search engines and other associated tools (e.g. spectral libraries search tools). The UniProt PEFF format currently represents variation and sequence data and is available through the Proteins API service ( https://www.ebi.ac.uk/proteins/api/doc/ ) for 31 species. concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗sensesCommunity curation in UniProt UniProt users have always actively engaged with us and provide important feedback to the resource. unhoused_relationsThe significant number of requests we receive through the Help Desk for articles and annotations to be added to protein entries prompted the development of the ‘Community submission’ page, where researchers are able to add articles that they deem relevant to an entry and provide optional basic annotation by selecting the topics relevant to each paper from a controlled list and/or adding short statements about protein name, function, and disease, as described in the publication. sensesContributors are asked to supply their ORCID ( https://orcid.org/ ), a researcher personal ID, which is used to both validate that the submission is genuine and to give credit to the submitter for their work (Figure 5 ). This enables us to leverage the scientific community as a resource for enhancing our curated content, emulating a model already adopted by a number of model organism databases, such as WormBase ( 40 ), PomBase ( 41 ) and FlyBase ( 42 ). Figure 5. Community contribution. (i) Use ‘Add a publication’ functionality (red box) in the UniProtKB entry. (ii) Partial snapshot of the submission form, a sample available here: https://community.uniprot.org/bbsub/sampleform.html . (iii) After submission and review the publication and information are displayed in the relevant UniProtKB entry with attribution to submitter (red box) in a future public release. Submissions are minimally checked by an experienced curator before being added to the Publications section of the record. A tracker tool has also been developed ( https://community.uniprot.org/bbsub/bbsubinfo.html ) to enable users to access and search this wealth of additional bibliography. Researchers are encouraged to add relevant publications to entries of interest to them. Since we started the pilot in release 2019_08 we have seen a continuing increase in user submissions. As of release 2020_04 there have been 674 submissions relating to 424 publications and 557 entries, from 149 unique users ( https://community.uniprot.org/bbsub/STATS.html ). concepts↗concepts↗concepts↗concepts↗concepts↗sensesWebsite updates Users are at the center of the UniProt website design and development process. We follow a user-centered design process, conducting regular workshops, user testing, surveys and user research activities involving many users worldwide with varied research backgrounds and use cases. We are currently redesigning the website to take advantage of new technologies and paradigms in web development and welcome the UniProt user community to participate in user feedback and testing activities by contacting us at help@uniprot.org and contributing your user stories and workflows. As part of the redesign process, we have redeveloped both the UniProt interaction viewer (Figure 6A ) and ProtVista viewer, which graphically represents protein sequence features, such as domains, sites, post-translational modifications and variants, and structures. These are now part of the ‘Nightingale’ visualization web component library ( https://ebi-webcomponents.github.io/nightingale/#/ ) and are publicly available as lightweight, flexible, and modular components that can be more easily extended with new features, modified and implemented by users in their own resources (Figure 6B ). The ProtVista viewer has already been implemented by the Open Targets ( 43 ) and the Pharos ( 44 ) databases of unstudied and understudied drug targets amongst others. Figure 6. ( A ) The UniProtKB interaction viewer as seen in entry UniProtKB: Q9NSA3 , the beta-catenin-interacting protein 1. ( B ) The interaction viewer reusable web component in the Nightingale library. concepts↗concepts↗concepts↗concepts↗concepts↗concepts↗DATA AVAILABILITY Due to the ever-increasing number of sequence records UniProt is processing with every release cycle, as of release 2020_01 (26 February 2020), UniProt releases are now published every eight weeks. This gives our production team the time required to complete data import, proteome redundancy removal, data checking, integration of external data and automatic annotation of unreviewed records prior to starting the release process. In addition to providing customizable views and downloads in a range of formats via the website, and file sets at the FTP site ( www.uniprot.org/downloads ), UniProt supplies users with a number of different options for computational access to the data ( www.uniprot.org/help/programmatic_access ). These include the website RESTful Application Programming Interface (API), stable URLs that can be bookmarked, linked, and reused, the Proteins extended REST API providing genomic coordinates of UniProtKB sequences and annotations imported and mapped from large-scale data imports ( 29 ), and the SPARQL API that allows users to perform complex queries across all UniProt data and also other resources that provide a SPARQL endpoint, such as DisGeNET ( 45 ), Bgee ( 46 ), or Wikidata ( 47 ). The Proteins API has recently been extended to serve the HUPO Proteomics Standards Initiative Extended FASTA Format (PEFF) for the proteomics community which enables more metadata, such as detail of amino-acid variants in the FASTA file header section ( 39 ). Outreach and training The training of our users to make the best use of our data continues to be of critical importance to the UniProt Consortium. In order to access our global user base, we are increasingly moving away from classroom style training towards use of distance learning techniques. We regularly run webinars, which range from basic introductions to the use of the web pages aimed at new users and students, to more specialist sessions on, for example, use of the API or 3D structural representation in UniProtKB. The webinars are recorded and are subsequently made available online ( https://www.ebi.ac.uk/training/online/ ) where they are supported by related online training materials and YouTube videos ( https://www.youtube.com/user/uniprotvideos/ ). In order to reach new communities, the webinars are widely advertised through social media forums such as Twitter (@uniprot) and Facebook ( https://www.facebook.com/uniprot.org/ ) as well as established mailing lists. concepts↗concepts↗concepts↗concepts↗concepts↗CONCLUSIONS UniProt continues to play its pivotal role in the fields of biology and biomedicine, collecting, standardizing and organizing knowledge of proteins and their functions to create a reference framework for multiscale biomedical data integration and analysis. Organisms are being routinely sequenced at the whole genome level, and eukaryotic, prokaryotic, and metagenomic sequencing projects are all contributing to the increased diversity of sequence data in the UniProt databases. It is of increasing importance that our automatic annotation pipelines continue to develop in parallel to ensure that these unreviewed genomes, the vast majority of which are not being experimentally studied at the protein level, are richly and comprehensively annotated with functional information. unhoused_relationssensesExpert curation of those proteins biochemically characterized remains a key focus of our activities, to both inform on these well-studied entities and also to act as template entries for information transfer to proteins in related species. As the complexity and depth of our value-added data increases, we are exploring new ways to present the data to users and will continue to serve the community with new and improved website access designed to improve and enhance the user experience and upgraded programmatic access, with ease of use always a priority. We greatly value the feedback and annotation updates from our user community. Please send your feedback and suggestions to the e-mail address help@uniprot.org or via the contact link on the UniProt website. ACKNOWLEDGEMENTS The UniProt publication has been prepared by Alex Bateman, Maria-Jesus Martin, Sandra Orchard, Michele Magrane, Rahat Agivetova, Shadab Ahmad, Emanuele Alpi, Emily H. Bowler-Barnett, Ramona Britto, Borisas Bursteinas, Hema Bye-A-Jee, Ray Coetzee, Austra Cukura, Alan Da Silva, Paul Denny, Tunca Dogan, ThankGod Ebenezer, Jun Fan, Leyla Garcia Castro, Penelope Garmiri, George Georghiou, Leonardo Gonzales, Emma Hatton-Ellis, Abdulrahman Hussein, Alexandr Ignatchenko, Giuseppe Insana, Rizwan Ishtiaq, Petteri Jokinen, Vishal Joshi, Dushyanth Jyothi, Antonia Lock, Rodrigo Lopez, Aurelien Luciani, Jie Luo, Yvonne Lussi, Alistair MacDougall, Fabio Madeira, Mahdi Mahmoudy, Manuela Menchi, Alok Mishra, Katie Moulang, Andrew Nightingale, Carla Susana Oliveira, Sangya Pundir, Guoying Qi, Shriya Raj, Daniel Rice, Milagros Rodriguez Lopez, Rabie Saidi, Joseph Sampson, Tony Sawford, Elena Speretta, Edward Turner, Nidhi Tyagi, Preethi Vasudev, Vladimir Volynkin, Kate Warner, Xavier Watkins, Rossana Zaru, and Hermann Zellner at the EMBL- European Bioinformatics Institute; Alan Bridge, Sylvain Poux, Nicole Redaschi, Lucila Aimo, Ghislaine Argoud-Puy, Andrea Auchincloss, Kristian Axelsen, Parit Bansal, Delphine Baratin, Marie-Claude Blatter, Jerven Bolleman, Emmanuel Boutet, Lionel Breuza, Cristina Casals-Casas, Edouard de Castro, Kamal Chikh Echioukh, Elisabeth Coudert, Beatrice Cuche, Mikael Doche, Dolnide Dornevil, Anne Estreicher, Maria Livia Famiglietti, Marc Feuermann, Elisabeth Gasteiger, Sebastien Gehant, Vivienne Gerritsen, Arnaud Gos, Nadine Gruaz-Gumowski, Ursula Hinz, Chantal Hulo, Nevila Hyka-Nouspikel, Florence Jungo, Guillaume Keller, Arnaud Kerhornou, Vicente Lara, Philippe Le Mercier, Damien Lieberherr, Thierry Lombardot, Xavier Martin, Patrick Masson, Anne Morgat, Teresa Batista Neto, Salvo Paesano, Ivo Pedruzzi, Sandrine Pilbout, Lucille Pourcel, Monica Pozzato, Manuela Pruess, Catherine Rivoire, Christian Sigrist, Karin Sonesson, Andre Stutz, Shyamala Sundaram, Michael Tognolli, and Laure Verbregue at the SIB Swiss Institute of Bioinformatics; Cathy H. Wu, Cecilia N. Arighi, Leslie Arminski, Chuming Chen, Yongxing Chen, John S. Garavelli, Hongzhan Huang, Kati Laiho, Peter McGarvey, Darren A. Natale, Karen Ross, C. R. Vinayaka, Qinghua Wang, Yuqi Wang, Lai-Su Yeh, and Jian Zhang at the Protein Information Resource. The UniProt consortium also acknowledges the contributions of Patrick Ruch and Douglas Teodoro from the SIB Swiss Institute of Bioinformatics who developed the UPCLASS publication classification tool and the ChEBI team at EMBL-EBI for their support in small molecule annotation. Contributor Information The UniProt Consortium, European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton CB10 1SD, UK; Protein Information Resource, Georgetown University Medical Center, 3300 Whitehaven Street NW, Suite 1200, Washington, DC 20007, USA; Protein Information Resource, University of Delaware, Ammon-Pinizzotto Biopharmaceutical Innovation Building, Suite 147, 590 Avenue 1743, Newark, DE 19713, USA; SIB Swiss Institute of Bioinformatics, Centre Medical Universitaire, 1 rue Michel Servet, CH-1211 Geneva 4, Switzerland. The UniProt Consortium: Alex Bateman , Maria-Jesus Martin , Sandra Orchard , Michele Magrane , Rahat Agivetova , Shadab Ahmad , Emanuele Alpi , Emily H Bowler-Barnett , Ramona Britto , Borisas Bursteinas , Hema Bye-A-Jee , Ray Coetzee , Austra Cukura , Alan Da Silva , Paul Denny , Tunca Dogan , ThankGod Ebenezer , Jun Fan , Leyla Garcia Castro , Penelope Garmiri , George Georghiou , Leonardo Gonzales , Emma Hatton-Ellis , Abdulrahman Hussein , Alexandr Ignatchenko , Giuseppe Insana , Rizwan Ishtiaq , Petteri Jokinen , Vishal Joshi , Dushyanth Jyothi , Antonia Lock , Rodrigo Lopez , Aurelien Luciani , Jie Luo , Yvonne Lussi , Alistair MacDougall , Fabio Madeira , Mahdi Mahmoudy , Manuela Menchi , Alok Mishra , Katie Moulang , Andrew Nightingale , Carla Susana Oliveira , Sangya Pundir , Guoying Qi , Shriya Raj , Daniel Rice , Milagros Rodriguez Lopez , Rabie Saidi , Joseph Sampson , Tony Sawford , Elena Speretta , Edward Turner , Nidhi Tyagi , Preethi Vasudev , Vladimir Volynkin , Kate Warner , Xavier Watkins , Rossana Zaru , Hermann Zellner , Alan Bridge , Sylvain Poux , Nicole Redaschi , Lucila Aimo , Ghislaine Argoud-Puy , Andrea Auchincloss , Kristian Axelsen , Parit Bansal , Delphine Baratin , Marie-Claude Blatter , Jerven Bolleman , Emmanuel Boutet , Lionel Breuza , Cristina Casals-Casas , Edouard de Castro , Kamal Chikh Echioukh , Elisabeth Coudert , Beatrice Cuche , Mikael Doche , Dolnide Dornevil , Anne Estreicher , Maria Livia Famiglietti , Marc Feuermann , Elisabeth Gasteiger , Sebastien Gehant , Vivienne Gerritsen , Arnaud Gos , Nadine Gruaz-Gumowski , Ursula Hinz , Chantal Hulo , Nevila Hyka-Nouspikel , Florence Jungo , Guillaume Keller , Arnaud Kerhornou , Vicente Lara , Philippe Le Mercier , Damien Lieberherr , Thierry Lombardot , Xavier Martin , Patrick Masson , Anne Morgat , Teresa Batista Neto , Salvo Paesano , Ivo Pedruzzi , Sandrine Pilbout , Lucille Pourcel , Monica Pozzato , Manuela Pruess , Catherine Rivoire , Christian Sigrist , Karin Sonesson , Andre Stutz , Shyamala Sundaram , Michael Tognolli , Laure Verbregue , Cathy H Wu , Cecilia N Arighi , Leslie Arminski , Chuming Chen , Yongxing Chen , John S Garavelli , Hongzhan Huang , Kati Laiho , Peter McGarvey , Darren A Natale , Karen Ross , C R Vinayaka , Qinghua Wang , Yuqi Wang , Lai-Su Yeh , Jian Zhang , Patrick Ruch , and Douglas Teodoro FUNDING National Eye Institute, National Human Genome Research Institute, National Heart, Lung, and Blood Institute, National Institute of Allergy and Infectious Diseases, National Institute of Diabetes and Digestive and Kidney Diseases, National Institute of General Medical Sciences, National Cancer Institute, National Institute On Aging, and National Institute of Mental Health of the National Institutes of Health [U24HG007822]; National Human Genome Research Institute [U41HG002273]; National Institute of General Medical Sciences [R01GM080646, P20GM103446] (the content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health); Biotechnology and Biological Sciences Research Council [BB/T010541/1]; British Heart Foundation [RG/13/5/30112]; Open Targets; Swiss Federal Government through the State Secretariat for Education, Research and Innovation SERI; European Molecular Biology Laboratory core funds. Funding for open access charge: National Institutes of Health [U24HG007822]. Conflict of interest statement . None declared.

Every tag on this page

alternatives 3 · claim_relations 2 · claim_type 1 · concept_edges 12 · concepts 170 · content_tags 19 · contribution 1 · controls 3 · limitations 4 · mechanisms 4 · method 1 · object_of_study 1 · phenomenon 1 · research_question 1 · senses 19 · unhoused_relations 8

Relations on this page carry a quotation for the claim. Where a relation was separately evidenced — and so tested against the vocabulary for its type — the row says so; 10 of 12 relations here carry that mark. The rest are the tagger’s reading of the sentence quoted beside them.

facettagfieldconf.whose words
object_of_studyA KNOWLEDGEBASE THAT DELETES FROM ITSELF AND KEEPS WHAT IT DELETED - 190 million protein sequences in two provenance tiers, with a separate archive holding everything the knowledgebase has droppedobject_of_studythe paper's words
research_questionwhat UniProt now contains, how completeness and quality are assessed, and how annotations are evidencedresearch_questionthe paper's words
contributiona two-year status report: proteome completeness metrics, automated annotation, a credit-based community submission route, and a COVID-19 curation portalcontributionthe paper's words
claim_typemethodclaim_typethe paper's words
phenomenonprotein knowledge as something that must be tiered by provenance, judged for completeness against neighbours, and deleted without being lostphenomenonthe paper's words
methodsystem-or-tool-buildingmethodthe paper's words
mechanismsIT SOLVES THE PROBLEM THE GENE ONTOLOGY REFUSES. `aleksander2023` in this corpus: the knowledgebase must be `THE CURRENT STATE OF KNOWLEDGE AND NOT JUST AN ARCHIVE OF ALL PUBLIC DATA`. UniProt: `the UniProt Archive (UniParc) delivers a complete set of known sequences, including historical obsolete sequences`. GO REFUSES TO BE AN ARCHIVE; UNIPROT RUNS A SEPARATE ONE SO IT NEED NOT BEmechanisms[0]0.95the tagger's words
mechanismsand the deletion is reversible by construction: `we continue to remove almost identical proteomes of the same species from UniProtKB ... The redundant proteome sequences are available through UniParc ... and stable proteome identifiers ... are maintained for each redundant proteome to ensure findability`. Removed from the knowledgebase, kept in the archive, IDENTIFIER PRESERVEDmechanisms[1]0.95the tagger's words
mechanismsAND WHETHER A PROTEIN IS KNOWN TO EXIST IS A COUNTING RULE WITH TWO THRESHOLDS: `Peptide identifications can be taken as evidence that a protein has been validated (PE = 1) ... at least two unique peptides of seven amino acids or more or, for proteins where this cannot be achieved due to sequence constraints, one unique peptide of ten amino acids or more`. The fallback exists because some proteins fail the first rule for reasons that have nothing to do with whether they existmechanisms[2]0.95the tagger's words
mechanismsand completeness is judged AGAINST THE NEIGHBOURS: the `Complete Proteome Detector` `statistically evaluates the completeness and quality of each proteome by directly comparing it to those of a group of at least three closely taxonomically related species`, classifying it as `STANDARD`, `close to standard` or an `OUTLIER`mechanisms[3]0.95the tagger's words
limitationsA NEW INSTRUMENT CAUSED DELETIONS FROM THE KNOWLEDGEBASE: `As a result of our adoption of the BUSCO algorithm, a number of incomplete and poor-quality proteomes were identified and removed from UniProtKB`. The proteomes did not change; the ruler didlimitations[0]0.95the tagger's words
limitationsand the object being counted is hedged in its own definition: a proteome is `the complete set of proteins believed to be expressed by an organism`. Completeness and belief in the same phraselimitations[1]0.95the tagger's words
limitationsTHE TWO TIERS ARE A PROVENANCE DISTINCTION, NOT A QUALITY ONE ON ITS FACE: `UniProtKB COMBINES REVIEWED UniProtKB/Swiss-Prot entries, to which data have been added by our expert biocuration team, with the UNREVIEWED UniProtKB/TrEMBL entries that are annotated by automated systems`. A user who does not read the tier reads both as the same kind of claimlimitations[2]0.95the tagger's words
limitationsand the scale makes the tiering unavoidable: entries grew `by >65 million records, an increase of >50% in just 2 years`. No biocuration team can review thatlimitations[3]0.95the tagger's words
controlsBUSCO scoring against a defined set of near-universal single-copy orthologs
eliminates: incomplete proteomes passing as complete - and it worked in the destructive direction: 'a number of incomplete and poor-quality proteomes were identified and removed from UniProtKB' · outcome: held
controls[0]0.95the tagger's words
controlsthe Complete Proteome Detector, comparing each proteome to at least three closely related species
eliminates: the absence of a per-organism expectation - there is no independent count of how many proteins an organism should have, so the neighbours supply one · outcome: partial
controls[1]0.95the tagger's words
controlslabelling every automatic annotation with its evidence and source
eliminates: the confusion of an inferred annotation with a curated one - 'All automatic annotations are labelled with their evidence/source' · outcome: held
controls[2]0.95the tagger's words
conceptsUniProt Knowledgebaseconcepts[0]0.95the paper's words
conceptsUniProt Archiveconcepts[1]0.95the paper's words
conceptshistorical obsolete sequencesconcepts[2]0.95the paper's words
conceptsComplete Proteome Detectorconcepts[3]0.95the paper's words
conceptsBUSCO
also in: BUSCO
concepts[4]0.95the paper's words
conceptsvalidated
also in: validated
concepts[5]0.95the paper's words
conceptsPeptide identificationsconcepts[6]0.95the paper's words
conceptscomprehensive, high-quality and freely accessible set of protein sequencesconcepts[7]0.95the paper's words
conceptsfunctional informationconcepts[8]0.95the paper's words
conceptssequence redundancyconcepts[9]0.95the paper's words
conceptsproteome completeness and qualityconcepts[10]0.95the paper's words
conceptsreviewed entriesconcepts[11]0.95the paper's words
conceptsunreviewed entriesconcepts[12]0.95the paper's words
conceptscredit-based publication submission interfaceconcepts[13]0.95the paper's words
conceptsdedicated portalconcepts[14]0.95the paper's words
conceptsAssociation-Rule-Based Annotator (ARBA)concepts[15]0.95the paper's words
conceptsARBA
also in: ARBA
concepts[16]0.95the paper's words
conceptscomplete compendium of all known protein sequence dataconcepts[17]0.95the paper's words
conceptsexperimentally verifiedconcepts[18]0.95the paper's words
conceptscomputationally predictedconcepts[19]0.95the paper's words
conceptsreviewed UniProtKB/Swiss-Prot entriesconcepts[20]0.95the paper's words
conceptsunreviewed UniProtKB/TrEMBL entriesconcepts[21]0.95the paper's words
conceptsexpert biocuration teamconcepts[22]0.95the paper's words
conceptsautomated systemsconcepts[23]0.95the paper's words
conceptsUniRef databasesconcepts[24]0.95the paper's words
conceptssequence identityconcepts[25]0.95the paper's words
conceptsUniParc
also in: UniParc
concepts[26]0.95the paper's words
conceptscentral hub
also in: central hub
concepts[27]0.95the paper's words
concepts180 other resourcesconcepts[28]0.95the paper's words
conceptsFindable, Accessible, Interoperable and Reusableconcepts[29]0.95the paper's words
conceptsFAIR
also in: FAIR
concepts[30]0.95the paper's words
conceptsstable and traceable identifiersconcepts[31]0.95the paper's words
conceptsApplication Programming Interfacesconcepts[32]0.95the paper's words
conceptsFile Transfer Protocol (FTP) downloadsconcepts[33]0.95the paper's words
conceptsproteomes
also in: proteomes
concepts[34]0.95the paper's words
conceptscomplete set of proteins believed to be expressed by an organismconcepts[35]0.95the paper's words
conceptsINSDC source databasesconcepts[36]0.95the paper's words
conceptsviral proteomesconcepts[37]0.95the paper's words
conceptsBenchmarking Universal Single-Copy Orthologs
about this quote: A FIGURE/TABLE CAPTION IS JOINED INTO THE 'evidence' QUOTE, beginning at character 824: 'Figure 1. Growth in the number of entries in the UniProt databases ove…'. The page prints the caption apart from the paragraph; read the quote as the paragraph, then the caption.
concepts[38]0.95the paper's words
conceptscomplete, duplicated, fragmented, and potentially missing genes
about this quote: A FIGURE/TABLE CAPTION IS JOINED INTO THE 'evidence' QUOTE, beginning at character 824: 'Figure 1. Growth in the number of entries in the UniProt databases ove…'. The page prints the caption apart from the paragraph; read the quote as the paragraph, then the caption.
concepts[39]0.95the paper's words
conceptsnear-universal single copy orthologs
about this quote: A FIGURE/TABLE CAPTION IS JOINED INTO THE 'evidence' QUOTE, beginning at character 824: 'Figure 1. Growth in the number of entries in the UniProt databases ove…'. The page prints the caption apart from the paragraph; read the quote as the paragraph, then the caption.
concepts[40]0.95the paper's words
conceptsincomplete and poor-quality proteomes
about this quote: A FIGURE/TABLE CAPTION IS JOINED INTO THE 'evidence' QUOTE, beginning at character 824: 'Figure 1. Growth in the number of entries in the UniProt databases ove…'. The page prints the caption apart from the paragraph; read the quote as the paragraph, then the caption.
concepts[41]0.95the paper's words
conceptsdifferent quality and completeness metricsconcepts[42]0.95the paper's words
conceptsstandard
also in: standard
concepts[43]0.95the paper's words
conceptsclose to standardconcepts[44]0.95the paper's words
conceptsoutlier
also in: outlier
concepts[45]0.95the paper's words
conceptsReference Proteomeconcepts[46]0.95the paper's words
conceptsReference Proteome setconcepts[47]0.95the paper's words
conceptsresearch communityconcepts[48]0.95the paper's words
conceptscomputational clusteringconcepts[49]0.95the paper's words
conceptsbest annotated proteomeconcepts[50]0.95the paper's words
conceptsgene-centric subset of representative proteinsconcepts[51]0.95the paper's words
conceptsfull proteome
also in: full proteome
concepts[52]0.95the paper's words
conceptsisoforms
also in: isoforms
concepts[53]0.95the paper's words
conceptsrepresentative proteomeconcepts[54]0.95the paper's words
conceptsredundant proteome sequencesconcepts[55]0.95the paper's words
conceptsstable proteome identifiersconcepts[56]0.95the paper's words
conceptsfindability
also in: findability
concepts[57]0.95the paper's words
conceptsUniRef protein sequence clustersconcepts[58]0.95the paper's words
conceptssequence similarity searchesconcepts[59]0.95the paper's words
conceptsgene predictionconcepts[60]0.95the paper's words
conceptspan proteomes
also in: pan proteomes
concepts[61]0.95the paper's words
conceptscore and accessory proteomesconcepts[62]0.95the paper's words
conceptstime taken to perform UniRef50 clusteringconcepts[63]0.95the paper's words
conceptsMMseqs2 algorithmconcepts[64]0.95the paper's words
conceptsUniRef50 clusteringconcepts[65]0.95the paper's words
conceptsExpert curationconcepts[66]0.95the paper's words
conceptshierarchical searchesconcepts[67]0.95the paper's words
conceptsexperimental dataconcepts[68]0.95the paper's words
conceptshuman readable summariesconcepts[69]0.95the paper's words
conceptsstructured vocabulariesconcepts[70]0.95the paper's words
conceptsGene Ontology (GO)concepts[71]0.95the paper's words
conceptsRhea knowledgebaseconcepts[72]0.95the paper's words
conceptsbiochemical reactionsconcepts[73]0.95the paper's words
conceptschemical ontology ChEBIconcepts[74]0.95the paper's words
conceptsreaction participantsconcepts[75]0.95the paper's words
conceptschemical structuresconcepts[76]0.95the paper's words
conceptschemical transformationsconcepts[77]0.95the paper's words
conceptsInChIKeys
also in: InChIKeys
concepts[78]0.95the paper's words
conceptspseudoenzymes
also in: pseudoenzymes
concepts[79]0.95the paper's words
conceptsfunctional impact of human variationconcepts[80]0.95the paper's words
conceptsclinical significanceconcepts[81]0.95the paper's words
conceptsACMG-AMP
also in: ACMG-AMP
concepts[82]0.95the paper's words
conceptspathogenicity calculatorconcepts[83]0.95the paper's words
conceptsClinVar
also in: ClinVar
concepts[84]0.95the paper's words
conceptsalternative splicingconcepts[85]0.95the paper's words
conceptssplice isoform proteinsconcepts[86]0.95the paper's words
conceptsfunctional diversity of proteinsconcepts[87]0.95the paper's words
conceptspost-translational proteolytic cleavageconcepts[88]0.95the paper's words
conceptsmature amino-acid chainsconcepts[89]0.95the paper's words
conceptspolyprotein
also in: polyprotein
concepts[90]0.95the paper's words
conceptsmultiple bioactive proteins or peptidesconcepts[91]0.95the paper's words
conceptsmachine-readable functional annotationsconcepts[92]0.95the paper's words
conceptsspecific isoformsconcepts[93]0.95the paper's words
conceptspolyprotein cleavage productsconcepts[94]0.95the paper's words
conceptsbinary protein interactionsconcepts[95]0.95the paper's words
conceptsIMEx Consortiumconcepts[96]0.95the paper's words
conceptspre-release datasetconcepts[97]0.95the paper's words
conceptsCOVID-19 disease portalconcepts[98]0.95the paper's words
conceptsCOVID portal
also in: COVID portal
concepts[99]0.95the paper's words
conceptsprotein functionalityconcepts[100]0.95the paper's words
concepts3D-structure
also in: 3D-structure
concepts[101]0.95the paper's words
conceptscomplex formationconcepts[102]0.95the paper's words
conceptsstandard 8-weekly UniProt release cycleconcepts[103]0.95the paper's words
conceptsdisease-centric access pointsconcepts[104]0.95the paper's words
conceptsAlzheimer's diseaseconcepts[105]0.95the paper's words
conceptsdisease-related amino-acid variantconcepts[106]0.95the paper's words
conceptsAutomatic annotationconcepts[107]0.95the paper's words
conceptsInterPro
also in: InterPro
concepts[108]0.95the paper's words
conceptsUniRule systemconcepts[109]0.95the paper's words
conceptsrule mining techniquesconcepts[110]0.95the paper's words
conceptsUniFIRE
also in: UniFIRE
concepts[111]0.95the paper's words
conceptsUniProt Rule Markup Languageconcepts[112]0.95the paper's words
conceptseight different predictorsconcepts[113]0.95the paper's words
conceptssuperfamily, family and subfamily levelsconcepts[114]0.95the paper's words
conceptsfunctional domainsconcepts[115]0.95the paper's words
conceptsimportant sitesconcepts[116]0.95the paper's words
conceptsexperimentally uncharacterized proteinsconcepts[117]0.95the paper's words
conceptsknown experimentally characterized proteinsconcepts[118]0.95the paper's words
conceptsmulticlass, self-training annotation systemconcepts[119]0.95the paper's words
conceptsSAAS system
also in: SAAS system
concepts[120]0.95the paper's words
conceptsconcise annotation modelsconcepts[121]0.95the paper's words
conceptsdata exclusion setconcepts[122]0.95the paper's words
conceptshuman-readable rulesconcepts[123]0.95the paper's words
conceptsARBA rules
also in: ARBA rules
concepts[124]0.95the paper's words
conceptscombined coverage of the rule-based annotation systemsconcepts[125]0.95the paper's words
conceptsuncharacterized protein namesconcepts[126]0.95the paper's words
conceptsdomain X containing proteinconcepts[127]0.95the paper's words
conceptsintrinsically disordered (ID) protein regionsconcepts[128]0.95the paper's words
conceptsconsensus-based prediction of long disorderconcepts[129]0.95the paper's words
conceptsProtVista visualisation toolconcepts[130]0.95the paper's words
conceptspre-calculated mappingconcepts[131]0.95the paper's words
conceptsAligning variants to protein featuresconcepts[132]0.95the paper's words
conceptsPSI Extended FASTA Formatconcepts[133]0.95the paper's words
conceptsPEFF
also in: PEFF
concepts[134]0.95the paper's words
conceptsProteins API
also in: Proteins API
concepts[135]0.95the paper's words
conceptslarge-scale datasetsconcepts[136]0.95the paper's words
conceptsgenomic coordinatesconcepts[137]0.95the paper's words
conceptsGRCh38 version of the human genomeconcepts[138]0.95the paper's words
conceptsspecific variantsconcepts[139]0.95the paper's words
conceptsdisease
also in: disease
concepts[140]0.95the paper's words
conceptsresistance to a drugconcepts[141]0.95the paper's words
conceptsmechanistic insightsconcepts[142]0.95the paper's words
conceptsmass spectrometry proteomic dataconcepts[143]0.95the paper's words
conceptsProteomeXchange Consortiumconcepts[144]0.95the paper's words
conceptsCommunity submissionconcepts[145]0.95the paper's words
conceptscontrolled listconcepts[146]0.95the paper's words
conceptstracker tool
about this quote: A FIGURE/TABLE CAPTION IS JOINED INTO THE 'evidence' QUOTE, beginning at character 1070: 'Figure 5. Community contribution. (i) Use ‘Add a publication’ function…'. The page prints the caption apart from the paragraph; read the quote as the paragraph, then the caption.
also in: tracker tool
concepts[147]0.95the paper's words
conceptsORCID
also in: ORCID
concepts[148]0.95the paper's words
conceptsresearcher personal IDconcepts[149]0.95the paper's words
conceptsmodel organism databasesconcepts[150]0.95the paper's words
conceptsexperienced curator
about this quote: A FIGURE/TABLE CAPTION IS JOINED INTO THE 'evidence' QUOTE, beginning at character 1070: 'Figure 5. Community contribution. (i) Use ‘Add a publication’ function…'. The page prints the caption apart from the paragraph; read the quote as the paragraph, then the caption.
concepts[151]0.95the paper's words
conceptscommunity contribution
about this quote: A FIGURE/TABLE CAPTION IS JOINED INTO THE 'evidence' QUOTE, beginning at character 1070: 'Figure 5. Community contribution. (i) Use ‘Add a publication’ function…'. The page prints the caption apart from the paragraph; read the quote as the paragraph, then the caption.
concepts[152]0.95the paper's words
conceptsarticles and annotationsconcepts[153]0.95the paper's words
conceptsuser-centered design processconcepts[154]0.95the paper's words
conceptsUniProt interaction viewerconcepts[155]0.95the paper's words
conceptsProtVista viewerconcepts[156]0.95the paper's words
conceptsNightingale
also in: Nightingale
concepts[157]0.95the paper's words
conceptslightweight, flexible, and modular componentsconcepts[158]0.95the paper's words
conceptsproteome redundancy removalconcepts[159]0.95the paper's words
conceptsRESTful Application Programming Interfaceconcepts[160]0.95the paper's words
conceptsstable URLs
also in: stable URLs
concepts[161]0.95the paper's words
conceptsSPARQL API
also in: SPARQL API
concepts[162]0.95the paper's words
conceptsSPARQL endpointconcepts[163]0.95the paper's words
conceptseight weeks
also in: eight weeks
concepts[164]0.95the paper's words
conceptsreference framework for multiscale biomedical data integration and analysisconcepts[165]0.95the paper's words
conceptsautomatic annotation pipelinesconcepts[166]0.95the paper's words
conceptstemplate entriesconcepts[167]0.95the paper's words
conceptsinformation transfer to proteins in related speciesconcepts[168]0.95the paper's words
conceptsprogrammatic accessconcepts[169]0.95the paper's words
unhoused_relationsReference Proteome → research community
A Reference Proteome may be selected by the research community; selected-by is absent from the eight edge types.
unhoused_relations[0]0.95the tagger's words
unhoused_relationsReference Proteome → computational clustering
A Reference Proteome may be selected by computational clustering; selected-by is absent from the eight edge types.
unhoused_relations[1]0.95the tagger's words
unhoused_relationsAssociation-Rule-Based Annotator (ARBA) → SAAS system
ARBA replaces the previous SAAS system; replaces is absent from the eight edge types.
unhoused_relations[2]0.95the tagger's words
unhoused_relationsredundant proteome sequences → UniParc
Redundant sequences removed from UniProtKB remain available through UniParc; stored/available-through is absent from the eight edge types.
unhoused_relations[3]0.95the tagger's words
unhoused_relationscentral hub → 180 other resources
The central hub links users out to 180 resources; links-to is absent from the eight edge types.
unhoused_relations[4]0.95the tagger's words
unhoused_relationsAligning variants to protein features → mechanistic insights
Mapping variants to protein features provides mechanistic insights; supports-inference-of is absent from the eight edge types.
unhoused_relations[5]0.95the tagger's words
unhoused_relationsCommunity submission → articles and annotations
The submission page enables users to contribute publications and basic annotations; enables-contribution is absent from the eight edge types.
unhoused_relations[6]0.95the tagger's words
unhoused_relationsExpert curation → template entries
Expert curation produces template entries for transferring information to related proteins; produces/serves-as-template is absent from the eight edge types.
unhoused_relations[7]0.95the tagger's words
senses`validated` (PE = 1) - A COUNTING RULE: `at least two unique peptides of seven amino acids or more or ... one unique peptide of ten amino acids or more has been mapped to a protein`. Existence, operationalised, with a fallback for proteins the first rule cannot reachsenses[0]0.95the tagger's words
senses`complete proteome` - JUDGED AGAINST THE NEIGHBOURS RATHER THAN AGAINST THE ORGANISM: the CPD compares each proteome `to those of a group of at least three closely taxonomically related species` and returns `standard`, `close to standard` or `outlier`senses[1]0.95the tagger's words
senses`reviewed` vs `unreviewed` - A PROVENANCE TIER: reviewed entries carry data added `by our expert biocuration team`, unreviewed ones are `annotated by automated systems`. The same field in both, with a different warrant behind itsenses[2]0.95the tagger's words
senses`UniParc` - THE ARCHIVE THAT KEEPS WHAT THE KNOWLEDGEBASE DROPS, `a complete set of known sequences, including historical obsolete sequences`. GO declines to be an archive; UniProt separates the two rolessenses[3]0.95the tagger's words
sensesreviewed UniProtKB/Swiss-Prot entries: records whose data are added by expert biocuratorssenses[4]0.95the tagger's words
sensesunreviewed UniProtKB/TrEMBL entries: records annotated by automated systemssenses[5]0.95the tagger's words
sensesUniParc: the archive retaining known sequences including obsolete sequencessenses[6]0.95the tagger's words
sensesproteome: the set of proteins currently believed to be expressed by an organismsenses[7]0.95the tagger's words
sensesReference Proteome: a stably maintained, best-annotated representative selected by community choice or clusteringsenses[8]0.95the tagger's words
sensesgene-centric subset: one algorithmically selected representative protein per gene, unlike the isoform-inclusive full proteomesenses[9]0.95the tagger's words
sensesexpert curation: evaluation of experimental literature and summarization in reviewed Swiss-Prot recordssenses[10]0.95the tagger's words
sensesARBA: a multiclass self-training system that mines concise automatic-annotation rulessenses[11]0.95the tagger's words
sensesUniRule: similarity-based semi-automated annotation from experimentally characterized proteinssenses[12]0.95the tagger's words
sensesPEFF: extended FASTA format carrying variation and sequence metadata for proteomic toolssenses[13]0.95the tagger's words
sensesORCID: personal researcher identifier used to validate submissions and assign contribution creditsenses[14]0.95the tagger's words
sensesCOVID-19 disease portal: pre-release disease-centric access updated faster than the ordinary UniProt cyclesenses[15]0.95the tagger's words
sensescommunity curation: user-submitted publications and basic annotations minimally checked by an experienced curator
about this quote: A FIGURE/TABLE CAPTION IS JOINED INTO THE 'evidence' QUOTE, beginning at character 1070: 'Figure 5. Community contribution. (i) Use ‘Add a publication’ function…'. The page prints the caption apart from the paragraph; read the quote as the paragraph, then the caption.
senses[16]0.95the tagger's words
sensesNightingale components: lightweight modular visualization components reusable in external resourcessenses[17]0.95the tagger's words
sensestemplate entries: expert-curated records that support information transfer to related-species proteinssenses[18]0.95the tagger's words
alternativesclaim_type: method
a second reading reaching the same value. Recorded: method — note: A BLIND second reading by the project on 2026-08-25: the record's own claim type/method/phenomenon were not looked at until every value here was written and substring-verified. Not applied - a person decides. Sampling frame: the 504 staged records carrying no alternatives block, so this never re-measures the 202. All 11 records with 130+ tags were taken as a census and 19 more spread one per discipline across 22 disciplines - the dense non-neuroscience cell is the one the 202 do not contain (inside them, 94-100% of the densest bands are neuroscience; among these 11, one is).,
alternatives.claim_type0.75the tagger's words
alternativesmethod: database-resource-description
a second reading DIFFERING from the recorded value. Recorded: system-or-tool-building — note: A BLIND second reading by the project on 2026-08-25: the record's own claim type/method/phenomenon were not looked at until every value here was written and substring-verified. Not applied - a person decides. Sampling frame: the 504 staged records carrying no alternatives block, so this never re-measures the 202. All 11 records with 130+ tags were taken as a census and 19 more spread one per discipline across 22 disciplines - the dense non-neuroscience cell is the one the 202 do not contain (inside them, 94-100% of the densest bands are neuroscience; among these 11, one is).,
alternatives.method0.8the tagger's words
alternativesphenomenon: the UniProt knowledgebase of protein sequence and functional annotation
a second reading DIFFERING from the recorded value. Recorded: protein knowledge as something that must be tiered by provenance, judged for completeness against neighbours, and delete — note: A BLIND second reading by the project on 2026-08-25: the record's own claim type/method/phenomenon were not looked at until every value here was written and substring-verified. Not applied - a person decides. Sampling frame: the 504 staged records carrying no alternatives block, so this never re-measures the 202. All 11 records with 130+ tags were taken as a census and 19 more spread one per discipline across 22 disciplines - the dense non-neuroscience cell is the one the 202 do not contain (inside them, 94-100% of the densest bands are neuroscience; among these 11, one is).,
alternatives.phenomenon0.8the tagger's words
claim_relationsextends → UniProt's own 2019 update in the same journal, which described the response to growth in microbial sequence recordsclaim_relations[0]0.95the tagger's words
claim_relationssupports → the FAIR data principles - 'providing stable and traceable identifiers ... and by fully evidencing our data sources throughout'claim_relations[1]0.95the tagger's words
concept_edgeshistorical obsolete sequences —part-of→ UniProt Archive
strength of the relation: 0.95 · note: THE ARCHIVE IS DEFINED BY HOLDING WHAT THE KNOWLEDGEBASE DOES NOT. 'aleksander2023' in this corpus says a knowledgebase must NOT be an archive of all public data; UniProt runs both and keeps the identifiers stable across the boundary
concept_edges[0]0.95the tagger's words
concept_edgesvalidated —operationalised-as→ Peptide identifications
strength of the relation: 0.95 · note: 'at least two unique peptides of seven amino acids or more or, for proteins where this cannot be achieved due to sequence constraints, one unique peptide of ten amino acids or more'. Two thresholds and a fallback, and the fallback is there because the first rule fails for reasons unrelated to existence
concept_edges[1]0.95the tagger's words
concept_edgesgene-centric subset of representative proteins —contrasted-with→ full proteome
the relation itself is separately evidenced · strength of the relation: 1 · note: The paper explicitly contrasts one protein per gene with the isoform-inclusive full proteome.
concept_edges[2]0.95the tagger's words
concept_edgesalternative splicing —causes→ functional diversity of proteins
direction on the measure: increases · the relation itself is separately evidenced · strength of the relation: 0.7 · direction on the measure (stated by the tagger, no quotation): increases · note: The paper says splicing can potentially increase functional diversity; weight reflects both modals. Audit 2026-09-28: DOUBTFUL - read against its full span and kept, but splicing 'can potentially increase' functional diversity; hedged.
concept_edges[3]0.95the tagger's words
concept_edgespolyprotein —causes→ multiple bioactive proteins or peptides
the relation itself is separately evidenced · strength of the relation: 0.7 · about this quote: DOUBTFUL, found by an audit that read the edge against its span: signed 'increases' with no direction word ('may generate'); its effect direction was retired for that reason and is kept under a dated before-key. The edge is kept live; a reader should weigh it with this in mind. · note: A single polyprotein may generate multiple products; weight reflects 'may'.
concept_edges[4]0.95the tagger's words
concept_edgesMMseqs2 algorithm —causes→ time taken to perform UniRef50 clustering
direction on the measure: reduces · the relation itself is separately evidenced · strength of the relation: 1 · direction on the measure (stated by the tagger, no quotation): reduces · note: Adoption decreased production time from four weeks to 60 hours.
concept_edges[5]0.95the tagger's words
concept_edgesUniProt Archive —same-as→ UniParc
the relation itself is separately evidenced · strength of the relation: 1 · note: The paper gives UniParc as the parenthetical name of the UniProt Archive.
concept_edges[6]0.95the tagger's words
concept_edgesBUSCO —same-as→ Benchmarking Universal Single-Copy Orthologs
the relation itself is separately evidenced · strength of the relation: 1 · note: Parenthetical acronym expansion.
concept_edges[7]0.95the tagger's words
concept_edgesFindable, Accessible, Interoperable and Reusable —same-as→ FAIR
the relation itself is separately evidenced · strength of the relation: 1 · note: Parenthetical acronym expansion for the data principles.
concept_edges[8]0.95the tagger's words
concept_edgesPEFF —same-as→ PSI Extended FASTA Format
the relation itself is separately evidenced · strength of the relation: 1 · note: Parenthetical format-name expansion.
concept_edges[9]0.95the tagger's words
concept_edgesCOVID portal —contrasted-with→ standard 8-weekly UniProt release cycle
differs in: update frequency · the relation itself is separately evidenced · strength of the relation: 1 · differs in (stated by the tagger, no quotation): update frequency · note: The portal is directly compared with the normal release cycle.
concept_edges[10]0.95the tagger's words
concept_edgesARBA rules —causes→ combined coverage of the rule-based annotation systems
direction on the measure: increases · the relation itself is separately evidenced · strength of the relation: 1 · direction on the measure (stated by the tagger, no quotation): increases · note: Use of ARBA rules increased combined rule-based coverage from 35% to 49%.
concept_edges[11]0.95the tagger's words
content_tagsUniParc delivers a complete set of known sequences, including historical obsolete onescontent_tags.findings[0]0.95the tagger's words
content_tagsAND THE DELETION IS REVERSIBLE BY CONSTRUCTION: removed proteomes `are available through UniParc ... and stable proteome identifiers ... are maintained for each redundant proteome to ensure findability`content_tags.findings[1]0.95the tagger's words
content_tagsWHETHER A PROTEIN IS KNOWN TO EXIST IS A COUNTING RULE WITH TWO THRESHOLDS AND A FALLBACK: `at least two unique peptides of seven amino acids or more or, for proteins where this cannot be achieved due to sequence constraints, one unique peptide of ten amino acids or more`content_tags.findings[2]0.95the tagger's words
content_tagsCOMPLETENESS IS JUDGED AGAINST THE NEIGHBOURS: the CPD compares each proteome `to those of a group of at least three closely taxonomically related species` and returns `STANDARD`, `close to standard` or `OUTLIER`content_tags.findings[3]0.95the tagger's words
content_tagsadopting BUSCO led to removing a number of incomplete and poor-quality proteomes from UniProtKBcontent_tags.findings[4]0.95the tagger's words
content_tagsand the object counted is hedged in its own definition - a proteome is `the complete set of proteins believed to be expressed by an organism`content_tags.findings[5]0.95the tagger's words
content_tagsTHE TWO TIERS ARE A PROVENANCE DISTINCTION: reviewed entries have data added `by our expert biocuration team`, unreviewed ones are `annotated by automated systems`content_tags.findings[6]0.95the tagger's words
content_tagsand every automatic annotation carries its warrant: `All automatic annotations are labelled with their evidence/source`content_tags.findings[7]0.95the tagger's words
content_tagsUniProtKB grew by more than 65 million entries, over 50%, in just 2 yearscontent_tags.findings[8]0.95the tagger's words
content_tagsAND AN UNINFORMATIVE NAME IS KEPT ON PURPOSE: a `domain-containing protein` name is retained `as, although not immediately informative, it enables protein grouping thus improving the chances of eventually assigning a function to that domain`. A placeholder name defended by what it makes possible latercontent_tags.findings[9]0.95the tagger's words
content_tagsUniProtKB aims to be comprehensive, high-quality and freely accessiblecontent_tags.findings[10]0.95the tagger's words
content_tagsand the functional information is `experimentally verified, or computationally predicted` - one field, two warrants, stated in the first sentence of the introductioncontent_tags.findings[11]0.95the tagger's words
content_tagsprotein existence level 1: `at least two unique peptides of seven amino acids or more or ... one unique peptide of ten amino acids or more has been mapped to a protein`
also in: validated
content_tags.definitions[0]0.95the tagger's words
content_tags`an in-house algorithm, which statistically evaluates the completeness and quality of each proteome by directly comparing it to those of a group of at least three closely taxonomically related species`, returning `standard`, `close to standard` or `outlier`content_tags.definitions[1]0.95the tagger's words
content_tags`delivers a complete set of known sequences, including historical obsolete sequences`content_tags.definitions[2]0.95the tagger's words
content_tags2 — of seven amino acids or more, the primary rule for calling a protein validated at PE=1content_tags.quantities[0]0.95the tagger's words
content_tags3 — the minimum size of the comparison group the CPD judges a proteome's completeness againstcontent_tags.quantities[1]0.95the tagger's words
content_tags65 — growth in UniProtKB entries in two years - an increase of over 50%content_tags.quantities[2]0.95the tagger's words
content_tagsthe evidence that decides whether a protein counts as validatedcontent_tags.variables[0]0.95the tagger's words

Interpretive choices

Tags that could not be placed in the text:

What was deliberately not tagged, and why, is recorded per paper by the tagger. Where a paper has no such record, this page says so rather than implying that nothing was declined.

© 2026 Shir Sivroni · ORCID 0009-0000-2597-2824