2-oxoglutarate-dependent dioxygenase activity peptidyl-arginine 3-dioxygenase activity https://github.com/geneontology/go-ontology/issues/16689 https://github.com/geneontology/go-ontology/issues/30193 RHEA:57160 hjd Reactome:R-HSA-9629888 Reactome:R-HSA-9629869 Catalyzes the reaction: 2-oxoglutarate + [protein]-L-arginine + O2 = [protein]-(3R)-3-hydroxy-L-arginine + CO2 + succinate. GO:0140554 L-arginine 3-hydroxylase activity RHEA:56744 RHEA:41556 2018-11-26T15:05:57Z GO:0106157 EC:1.14.11.73 RHEA:57164 molecular_function catalytic activity, acting on a protein