PRotein Ontology (PRO) Release 49.0 (13-May-2016)

There are 203284 PRO terms in the Protein Ontology.
   57 terms are in the 'external' category.
   402 terms are in the 'family' category.
  23559 terms are in the 'gene' category.
  8322 terms are in the 'sequence' category.
  6676 terms are in the 'modification' category.
   212 terms are in the 'complex' category.
   34 terms are in the 'organism-family' category.
  92855 terms are in the 'organism-gene' category.
  68138 terms are in the 'organism-sequence' category.
  2233 terms are in the 'organism-modification' category.
   380 terms are in the 'organism-complex' category.
   118 terms are in the 'union' category.
2516 terms have some kind of annotation, codifying the information from 1672 papers.
  4415 connections to GO (1709 PRO terms).
   292 connections to MOD (255 PRO terms).
   620 connections to Pfam (373 PRO terms).
   338 connections to SO (317 PRO terms).
   349 annotations of a phenotype (342 PRO terms).

The ontology includes a subset of terms from other ontologies and resources that are used for logical definitions.

_Current changes_

None

_Forthcoming changes_

1) In Release 50 the default download version of PRO (http://purl.obolibrary.org/obo/pr.obo) will be the reasoned version (now called pro_reasoned.obo).

2) Continue to add shorthand labels to terms.

3) Resolve names and synonym duplicates.