PRotein Ontology (PRO) Release 34.0 (26-Apr-2013) There are 35259 PRO terms 332 terms are in the 'family' category. 23696 terms are in the 'gene' category. 1678 terms are in the 'sequence' category. 6515 terms are in the 'modification' category. 136 terms are in the 'complex' category. 4 terms are in the 'organism-family' category. 934 terms are in the 'organism-gene' category. 709 terms are in the 'organism-sequence' category. 784 terms are in the 'organism-modification' category. 261 terms are in the 'organism-complex' category. 16 terms are in the 'union' category. 1811 terms have some kind of annotation, codifying the information from 1250 papers. 2971 connections to GO (994 PRO terms). 374 connections to MOD (328 PRO terms). 614 connections to Pfam (369 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 other ontologies and resources that are used for logical definitions. _Current changes_ 1) Please note that this release still contains a number of duplicate names and synonyms. These will be resolved in upcoming releases. _Forthcoming changes_ 1) Continue to add shorthand labels to terms. 2) Continue to expand the set of mapped terms. 3) Resolve names and synonym duplicates.