Bradykinin

**Definition:** A nonapeptide messenger that is enzymatically produced from KALLIDIN in the blood where it is a potent but short-lived agent of arteriolar dilation and increased capillary permeability. Bradykinin is also released from MAST CELLS during asthma attacks, from gut walls as a gastrointestinal vasodilator, from damaged tissues as a pain signal, and may be a neurotransmitter.

**Tree numbers:** - D12.644.276.812.169 - D12.644.400.090 - D12.644.456.193 - D12.776.467.812.169 - D12.776.631.650.090 - D23.469.050.375.110 - D23.529.812.169

**Synonyms:** - Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg