http://bioportal.bioontology.org Updates to the NCBO BioPortal Repository en-ushttp://bioportal.bioontology.org/ontologies/44629Ontology Gene Regulation Ontology version 0.5 was added to the repositorybioontology.org2010-10-11 14:27:13 -0700http://bioportal.bioontology.org/ontologies/39624Ontology Gene Regulation Ontology version 0.4 was added to the repositorybioontology.org2009-03-21 00:07:43 -0700