title: A new peptide from Crotalus atrox snake venom.
abstract: The presence of new hypotensive peptides, possibly not related to ACE inhibition, has been investigated on 66 snake venoms from crotalid, viperid and elapid families. Only the venom of Crotalus atrox showed a substantial amount of a new decapeptide, called POL-236, with the following aminoacid sequence: PYR-LEU-TRP-PRO-ARG-PRO-GLN-ILE-PRO-PRO. Pharmacological assays performed on the synthesized peptide revealed effects on blood pressure, probably derived from vascular and cardiac interferences.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D000959:Antihypertensive Agents / Q000302:isolation & purification*; D002845:Chromatography; D003435:Crotalid Venoms / Q000032:analysis*; D009842:Oligopeptides / Q000032:analysis*
chemical_list: D000959:Antihypertensive Agents; D003435:Crotalid Venoms; D009842:Oligopeptides