title: Synthesis and pharmacological properties of the N-terminal decapeptide of the vasoactive intestinal peptide (VIP).
abstract: The decapeptide derivative, L-histidyl-L-seryl-L-aspartyl-L-alanyl-L-valyl-L-phenylalanyl-L-threonyl-L-aspartyl-L-asparaginyl-L-tyrosine methyl ester, corresponding to the N-terminal sequence of both porcine and chicken VIP was synthesized in solution, by the stepwise strategy. Its pharmacological properties resemble those of VIP itself, but with a much lower potency, comparable to that of peptides with C-terminal sequences. The presence of two independent sequences carrying similar instructions was recognized in VIP.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D004285:Dogs; D005768:Gastrointestinal Hormones / Q000138:chemical synthesis*; D006168:Guinea Pigs; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D010446:Peptide Fragments / Q000138:chemical synthesis / Q000494:pharmacology; D051381:Rats; D012039:Regional Blood Flow / Q000187:drug effects; D014660:Vasoactive Intestinal Peptide / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D005768:Gastrointestinal Hormones; D010446:Peptide Fragments; D014660:Vasoactive Intestinal Peptide