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Medical Term:

angiotensin I

Pronunciation: an′jē-ō-ten′sin

Definition: 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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