VIP GI:37588853 vasoactive intestinal peptide isoform 2 preproprotein 1 mdtrnkaqll vlltllsvlf sqtsawplyr apsalrlgdr ipfeganepd 50 51 qvslkedidm lqnalaendt pyydvsrnar hadgvftsdf skllgqlsak 100 101 kyleslmgkr vsnisedpvp vkrhsdavft dnytrlrkqm avkkylnsil 150 151 ngkrsseges pdfpeelek