angiotensin IImedical dictionary


The active form of angiotensin. An octapeptide found in blood, it is synthesised from angiotensin I and quickly destroyed. Angiotensin II causes profound vasoconstriction with resulting increase in blood pressure. The clinically and experimentally used bovine form has valine in position 5 where the human form has isoleucine.

Pharmacological action: vasoconstrictor agents.

Chemical name: Angiotensin II

(12 Dec 1998)