PRotein Ontology (PRO) Release 53.0 (27-Jul-2017)

There are 214247 PRO terms in the Protein Ontology.
   59 terms are in the 'external' category.
   158 terms are in the 'organism-seqgroup' category.
   402 terms are in the 'family' category.
  23561 terms are in the 'gene' category.
  8331 terms are in the 'sequence' category.
  5064 terms are in the 'modification' category.
   214 terms are in the 'complex' category.
   22 terms are in the 'organism-family' category.
  97650 terms are in the 'organism-gene' category.
  69720 terms are in the 'organism-sequence' category.
  6546 terms are in the 'organism-modification' category.
   386 terms are in the 'organism-complex' category.
   58 terms are in the 'union' category.
2526 terms have some kind of annotation, codifying the information from 1689 papers.
  4445 connections to GO (1723 PRO terms).
   292 connections to MOD (255 PRO terms).
   616 connections to Pfam (369 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_

1) Added EnsemblBacteria as a source for gene information.

_Forthcoming changes_

1) Araport will replace TAIR as the authoritative source for Arabidopsis thaliana gene information. The change will take place with release 54.0.