angiotensin I
A decapeptide of slightly variable sequence, depending on the animal source, formed from the tetradecapeptide angiotensinogen by the removal of four amino acid residues, a reaction catalyzed by renin; a peptidase cleaves off a dipeptide (histidylleucine) to yield angiotensin II, the physiologically active form.

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angiotensin I -'wən n the physiologically inactive form of angiotensin that is composed of 10 amino acid residues and is a precursor of angiotensin II

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a decapeptide cleaved from angiotensinogen by renin; it has some biological activity but serves mainly as a precursor to a. II.

Medical dictionary. 2011.

Look at other dictionaries:

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