a proteolytic enzyme, formed in the kidneys, that helps produce angiotensin, which is a powerful pressor responsible for hypertension
Origin of renin; from Classical Latin renes, kidneys + -in
A proteinase of high specificity that is released by the kidney and acts to raise blood pressure by activating angiotensin.
Origin of reninLatin rēnēs, kidneys + –in.
- (biochemistry) An circulating enzyme released by mammalian kidneys that converts angiotensinogen to angiotensin-I. Because its activity ultimately leads to formation of angiotensin-II and aldosterone, this hormone plays a role in maintaining blood pressure.