Bradykinin (1-6) is an amino-truncated Bradykinin peptide and a stable metabolite of Bradykinin, cleaved by carboxypeptidase Y (CPY). This fragment of Bradykinin activates pain receptors and induces smooth muscle contraction.
Endogenous potent and highly selective bradykinin B1 receptor agonist (Ki values are 0.12 and > 30000 nM at human B1 and B2 receptors respectively). Hypotensive agent that reduces peripheral vascular resistance in vivo. 16-fold more potent than [Des-Arg9]