1enkephalin 2Met-Enkephalin (Tyr-Gly-Gly-Phe-Met) 3tyr -86 157 180 -165 87 4gly -165 79 180 5gly 64 -94 180 6phe -80 -30 180 180 80 7met -79 146 180 -66 -179 -179 8 9n 10