apo-[aequorin] + coelenterazine + 3 Ca(2+) + O2 = excited state-[aequorin] + CO2
apo-[aequorin] + coelenterazine + 3 ca(2+) + o2 = excited state-[aequorin] + co2
"calcium-activated photoprotein"
"calcium-activated photoprotein"