TAC1 GI:7770077 tachykinin 1 isoform gamma precursor 1 mkilvalavf flvstqlfae eiganddlny wsdwydsdqi keelpepfeh 50 51 llqriarrpk pqqffglmgk rdaghgqish krhktdsfvg lmgkralnsv 100 101 ayersamqny errr