>RET4_MOUSE
MEWVWALVLLAALGGGSAERDCRVSSFRVKENFDKARFSGLWYAIAKKDPEGLFLQDNII
AEFSVDEKGHMSATAKGRVRLLSNWEVCADMVGTFTDTEDPAKFKMKYWGVASFLQRGND
DHWIIDTDYDTFALQYSCRLQNLDGTCADSYSFVFSRDPNGLSPETRRLVRQRQEELCLE
RQYRWIEHNGYCQSRPSRNSL