Protein Ontology

Last uploaded: November 12, 2025
Details
Acronym PR
Visibility Public
Description PRO provides an ontological representation of protein-related entities by explicitly defining them and showing the relationships between them. Each PRO term represents a distinct class of entities (including specific modified forms, orthologous isoforms, and protein complexes) ranging from the taxon-neutral to the taxon-specific. The ontology has a meta-structure encompassing three areas: proteins based on evolutionary relatedness (ProEvo); protein forms produced from a given gene locus (ProForm); and protein-containing complexes (ProComp)., The PRotein Ontology (PRO) formally defines taxon-specific and taxon-neutral protein-related entities in three major areas: proteins related by evolution; proteins produced from a given gene; and protein-containing complexes.
Status Production
Format OBO
Categories
Protein
All Organisms
Groups
OBO Foundry
Bibliographic reference
https://proconsortium.org/pro_pub.shtml
https://proconsortium.org/pro_pub.shtml
Contact
Darren Natale ([email protected])
Created with
PRO dB See more...
Creation date
November 12, 2025
Deprecated
false See more...
Documentation
https://proconsortium.org/pro_dcmtt.shtml See more...
Homepage
http://proconsortium.org See more...
License
Notes
Use reasoner in Protege to see the correct hierarchy. See more...
The PRotein Ontology is licensed under CC BY 4.0. Please see http://obofoundry.org/ontology/pr for details. See more...
Object creation date property
http://purl.org/dc/elements/1.1/created
http://purl.org/dc/elements/1.1/created
Object modification date property
http://purl.org/dc/elements/1.1/modified
http://purl.org/dc/elements/1.1/modified
Preferred namespace prefix
protein See more...
Submission date
November 12, 2025
Syntax
http://purl.obolibrary.org/obo/oboformat/spec.html
http://purl.obolibrary.org/obo/oboformat/spec.html
Version IRI
http://purl.obolibrary.org/obo/pr/72.0/pr.owl
http://purl.obolibrary.org/obo/pr/72.0/pr.owl
Version information
71.0 See more...
uri
http://purl.obolibrary.org/obo/pr.owl
http://purl.obolibrary.org/obo/pr.owl
Submissions
Version Released Uploaded Downloads
71.0 (Parsed, Indexed, Metrics, Annotator) 11/12/2025 11/12/2025 OBO | CSV | RDF/XML | Diff
71.0 (Archived) 03/28/2025 03/28/2025 OBO | Diff
69.0 (Archived) 08/20/2024 08/20/2024 OBO | Diff
69.0 (Archived) 02/16/2024 02/16/2024 OBO | Diff
68.0 (Archived) 02/16/2023 02/16/2023 OBO | Diff
67.0 (Archived) 08/12/2022 08/12/2022 OBO | Diff
66.0 (Archived) 05/05/2022 05/05/2022 OBO | Diff
65.0 (Archived) 12/17/2021 12/17/2021 OBO | Diff
64.0 (Archived) 12/14/2021 12/14/2021 OBO | Diff
63.0 (Archived) 05/12/2021 05/12/2021 OBO | Diff
62.0 (Archived) 12/14/2020 12/14/2020 OBO | Diff
61.0 (Archived) 08/21/2020 08/21/2020 OBO | Diff
60.0 (Archived) 04/24/2020 04/24/2020 OBO | Diff
59.0 (Archived) 09/23/2019 04/01/2020 OBO | Diff
58.0 (Archived) 10/03/2019 10/03/2019 OBO | Diff
58.0 (Archived) 04/18/2019 04/18/2019 OBO | Diff
57.0 (Archived) 12/11/2018 12/11/2018 OBO | Diff
56.0 (Archived) 05/15/2018 05/15/2018 OBO | Diff
55.0 (Archived) 02/21/2018 02/21/2018 OBO | Diff
54.0 (Archived) 10/27/2017 10/27/2017 OBO | Diff
53.0. (Archived) 07/27/2017 07/27/2017 OBO | Diff
52.0. (Archived) 04/07/2017 04/07/2017 OBO | Diff
51.0. (Archived) 01/06/2017 01/06/2017 OBO | Diff
50.0. (Archived) 10/04/2016 10/04/2016 OBO | Diff
49.0. (Archived) 05/16/2016 05/16/2016 OBO | Diff
48.0. (Archived) 04/26/2016 04/26/2016 OBO | Diff
48.0. (Archived) 04/07/2016 04/07/2016 OBO | Diff
48.0. (Archived) 02/10/2016 02/10/2016 OBO | Diff
47.0. (Archived) 06/24/2015 10/19/2015 OBO | Diff
46.0. (Archived) 06/24/2015 10/16/2015 OBO | Diff
45.0 (Archived) 05/15/2015 05/15/2015 OBO | Diff
45.0 (Archived) 04/13/2014 06/12/2014 OBO | Diff
40.0. (Archived) 04/21/2014 04/21/2014 OBO | Diff
39.0. (Archived) 01/29/2014 01/29/2014 OBO | Diff
38.0. (Archived) 10/29/2013 10/29/2013 OBO | Diff
36.0. (Archived) 08/05/2013 08/05/2013 OBO | Diff
34.0. (Archived) 04/29/2013 04/29/2013 OBO | Diff
33.0. (Archived) 03/22/2013 03/22/2013 OBO | Diff
32.0. (Archived) 02/18/2013 02/18/2013 OBO
31.0. (Archived) 01/15/2013 01/15/2013 OBO
30.0. (Archived) 11/12/2012 11/12/2012 OBO
29.0. (Archived) 09/11/2012 09/11/2012 OBO
28.0. (Archived) 07/26/2012 07/26/2012 OBO
27.0. (Archived) 04/26/2012 04/26/2012 OBO
26.0. (Archived) 02/24/2012 02/24/2012 OBO
25.0. (Archived) 01/19/2012 01/19/2012 OBO
25.0. (Archived) 12/21/2011 12/21/2011 OBO
24.0. (Archived) 11/02/2011 11/02/2011 OBO
23.0. (Archived) 10/02/2011 10/02/2011 OBO
22.0. (Archived) 08/31/2011 08/31/2011 OBO
21.0. (Archived) 07/25/2011 07/25/2011 OBO
20.0. (Archived) 06/27/2011 06/27/2011 OBO
19 (Archived) 05/31/2011 06/01/2011 OBO
18.0. (Archived) 04/22/2011 05/25/2011 OBO
16 (Archived) 02/23/2011 03/28/2011 OBO
unknown (Archived) 02/15/2011 02/19/2011 OBO
unknown (Archived) 02/15/2011 02/15/2011 OBO
1.29 (Archived) 12/17/2010 12/17/2010 OBO
unknown (Archived) 12/16/2010 12/16/2010 OBO
1.29 (Archived) 11/24/2010 11/24/2010 OBO
1.28 (Archived) 11/18/2010 11/04/2010 OBO
1.27 (Archived) 08/20/2010 08/20/2010 OBO
1.26 (Archived) 08/17/2010 08/17/2010 OBO
1.25 (Archived) 07/24/2010 07/24/2010 OBO
1.24 (Archived) 07/22/2010 07/22/2010 OBO
1.23 (Archived) 06/12/2010 06/12/2010 OBO
1.22 (Archived) 05/18/2010 05/18/2010 OBO
1.21 (Archived) 04/22/2010 04/22/2010 OBO
1.20 (Archived) 04/14/2010 04/14/2010 OBO
1.19 (Archived) 04/06/2010 04/06/2010 OBO
1.18 (Archived) 03/23/2010 03/23/2010 OBO
1.17 (Archived) 02/16/2010 01/15/2010 OBO
1.15 (Archived) 11/10/2009 11/10/2009 OBO
1.14 (Archived) 07/15/2009 07/15/2009 OBO
1.13 (Archived) 06/06/2009 06/06/2009 OBO
1.10 (Archived) 04/03/2009 04/03/2009 OBO
1.9 (Archived) 02/07/2009 02/07/2009 OBO
1.7 (Archived) 01/21/2009 01/21/2009 OBO
1.6 (Archived) 11/04/2008 11/04/2008 OBO
1.5 (Archived) 10/14/2008 10/14/2008 OBO
1.2 (Archived) 09/24/2008 10/12/2008 OBO
more...
Views of PR

No views of PR available

Metrics
Classes 365,912
Individuals 0
Properties 24
Maximum depth 16
Maximum number of children 102,399
Average number of children 6
Classes with a single child 22,403
Classes with more than 25 children 279
Classes with no definition 4,431
Visits
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