L-histidyl-[protein] + 2-oxoglutarate + O2 = (3S)-3-hydroxy-L-histidyl-[protein] + succinate + CO2
l-histidyl-[protein] + 2-oxoglutarate + o2 = (3s)-3-hydroxy-l-histidyl-[protein] + succinate + co2
L-histidyl-[protein] + 2-oxoglutarate + O2 = (3S)-3-hydroxy-L-histidyl-[protein] + succinate + CO2
l-histidyl-[protein] + 2-oxoglutarate + o2 = (3s)-3-hydroxy-l-histidyl-[protein] + succinate + co2