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PRotein Ontology (PRO) Release 28.0, version 0
23-July-2012

The Protein Ontology Consortium--Protein Information Resource, The Jackson Laboratory, Reactome, and the Department of Philosophy at the State University of New York at Buffalo--is pleased to announce PRO Release 28.0 (22-July-2012). PRO describes the relationships of proteins and protein evolutionary classes, delineates the multiple protein forms of a gene locus (ontology for protein forms), protein complexes, and interconnects existing ontologies. Further information is available at http://pir.georgetown.edu/pro/.

In PRO Release 28.0, version 0:

There are 28804 PRO terms
     315 terms are in the 'family' category.
   18285 terms are in the 'gene' category.
    1546 terms are in the 'sequence' category.
    6178 terms are in the 'modification' category.
     126 terms are in the 'complex' category.
       4 terms are in the 'organism-family' category.
     875 terms are in the 'organism-gene' category.
     592 terms are in the 'organism-sequence' category.
     523 terms are in the 'organism-modification' category.
     236 terms are in the 'organism-complex' category.
      12 terms are in the 'union' category.
1679 terms have some kind of annotation, codifying the information from 1170 papers.
    2449 connections to GO (870 PRO terms).
     374 connections to MOD (327 PRO terms).
     605 connections to Pfam (362 PRO terms).
     338 connections to SO (317 PRO terms).
     344 annotations of a phenotype (337 PRO terms).


The ontology includes a subset of terms from GO, MOD, CHEBI, and SO ontologies that are used for logical definitions.  If using OBO Edit to view PRO, please turn on the reasoner in order to display the hierarchy.


_Forthcoming changes_

1) Continue to add shorthand labels to terms.
2) Continue to expand the set of mapped terms.
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