title: Iodinated derivatives of the vasoactive intestinal polypeptide (VIP) are agonists at the cat pancreas and the rat submandibular salivary gland.
abstract: Porcine VIP was iodinated by the chloramine-T method. The reaction products, which were separated by high pressure liquid chromatography, included residual native VIP, oxidized VIP and at least two iodinated VIP species. The iodo-VIP derivatives were recognized by antibodies raised against VIP and by VIP receptors. Furthermore, they appear to be approximately equipotent agonists to VIP in activating the adenylate cyclase in membranes from the rat submandibular salivary gland and in the stimulation of pancreatic secretion in vivo.
mesh_terms: D000262:Adenylyl Cyclases / Q000378:metabolism; D000818:Animals; D001639:Bicarbonates / Q000378:metabolism; D002415:Cats; D002540:Cerebral Cortex / Q000378:metabolism; D002700:Chloramines; D002851:Chromatography, High Pressure Liquid; D004789:Enzyme Activation / Q000187:drug effects; D007455:Iodine; D007457:Iodine Radioisotopes; D007553:Isotope Labeling; D010179:Pancreas / Q000187:drug effects / Q000378:metabolism*; D011863:Radioimmunoassay; D051381:Rats; D011964:Receptors, Gastrointestinal Hormone / Q000378:metabolism*; D018005:Receptors, Vasoactive Intestinal Peptide; D013363:Submandibular Gland / Q000201:enzymology*; D014105:Tosyl Compounds; D014660:Vasoactive Intestinal Peptide / Q000031:analogs & derivatives* / Q000378:metabolism / Q000494:pharmacology
chemical_list: D001639:Bicarbonates; D002700:Chloramines; D007457:Iodine Radioisotopes; D011964:Receptors, Gastrointestinal Hormone; D018005:Receptors, Vasoactive Intestinal Peptide; D014105:Tosyl Compounds; C016300:chloramine-T; D014660:Vasoactive Intestinal Peptide; D007455:Iodine; D000262:Adenylyl Cyclases