Catalyzes the reaction: 2-oxoglutarate + [protein]-L-arginine + O2 = [protein]-(3R)-3-hydroxy-L-arginine + CO2 + succinate.
Synonyms:
exact_synonym:
L-arginine 3-hydroxylase activity
alt_id:
GO:0140554
xref:
EC:1.14.11.73; RHEA:56744; Reactome:R-HSA-9629869 "KDM8:Fe2+ hydroxylates an arginine residue of RPS6"; Reactome:R-HSA-9629888 "KDM8:Fe2+ hydroxylates an arginine residue of RCCD1"