ID 1.14.11.79 DE protein-L-histidine (3S)-3-hydroxylase. AN protein histidyl hydroxylase. CA 2-oxoglutarate + L-histidyl-[protein] + O2 = (3S)-3-hydroxy-L-histidyl- CA [protein] + CO2 + succinate. CC -!- The human enzymes encoded by the RIOX1 and RIOX2 genes catalyze the CC hydroxylation of L-histidine residues in the 60S ribosomal proteins CC Rpl8 and L27a, respectively. CC -!- Both proteins contain JmjC and winged helix domains, and both also CC catalyze histone L-lysine demethylation activities. DR A5PK74, RIOX1_BOVIN; Q5ZMM1, RIOX1_CHICK; A3KP59, RIOX1_DANRE; DR Q9H6W3, RIOX1_HUMAN; Q9JJF3, RIOX1_MOUSE; D3ZU57, RIOX1_RAT ; DR Q5EA24, RIOX2_BOVIN; Q8IUF8, RIOX2_HUMAN; Q8CD15, RIOX2_MOUSE; DR Q5R673, RIOX2_PONAB; Q8CFC1, RIOX2_RAT ; //