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PRotein Ontology (PRO) Release 21.0, version 0
27-July-2011

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 21.0 (27-July-2011). 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 21.0, version 0:

There are 27412 PRO terms
       4 terms are in the 'organism-family' category.
     306 terms are in the 'family' category.
   18213 terms are in the 'gene' category.
    1381 terms are in the 'sequence' category.
    5974 terms are in the 'modification' category.
      99 terms are in the 'complex' category.
     444 terms are in the 'organism-gene' category.
     395 terms are in the 'organism-sequence' category.
     302 terms are in the 'organism-modification' category.
     171 terms are in the 'organism-complex' category.
      11 terms are in the 'union' category.
1566 terms have some kind of annotation, codifying the information from 1057 papers.
    2332 connections to GO (795 PRO terms).
     374 connections to MOD (327 PRO terms).
     604 connections to Pfam (362 PRO terms).
     338 connections to SO (317 PRO terms).
     306 annotations of a phenotype (299 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.


_Current changes_

PSI-MOD-labels have beed added to PSI-MOD terms. These are present in the synonym line as follows: 

[Term]
id: MOD:00042
name: L-aspartic 4-phosphoric anhydride
namespace: MOD
synonym: "PhosAsp" EXACT PSI-MOD-label []
is_a: MOD:00696 ! phosphorylated residue

In addition, the line below has been added to the heading.
synonymtypedef: PSI-MOD-label "Unique short label curated by PSI-MOD" EXACT.

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