N-(5Z,8Z,11Z,14Z)-eicosatetraenoyl-glycine + O2 => N-(12S)-hydroperoxy-(5Z,8Z,10E,14Z)-eicosatetraenoyl-glycine
n-(5z,8z,11z,14z)-eicosatetraenoyl-glycine + o2 => n-(12s)-hydroperoxy-(5z,8z,10e,14z)-eicosatetraenoyl-glycine