L-histidyl-[ribosomal protein uL15] + 2-oxoglutarate + O2 => (3S)-3-hydroxy-L-histidyl-[ribosomal protein uL15] + succinate + CO2
l-histidyl-[ribosomal protein ul15] + 2-oxoglutarate + o2 => (3s)-3-hydroxy-l-histidyl-[ribosomal protein ul15] + succinate + co2
L-histidyl-[ribosomal protein uL15] + 2-oxoglutarate + O2 => (3S)-3-hydroxy-L-histidyl-[ribosomal protein uL15] + succinate + CO2
l-histidyl-[ribosomal protein ul15] + 2-oxoglutarate + o2 => (3s)-3-hydroxy-l-histidyl-[ribosomal protein ul15] + succinate + co2