angiotensin I

noun

: the physiologically inactive form of angiotensin that is composed of 10 amino acid residues, is derived from angiotensinogen, and is converted by angiotensin converting enzyme to angiotensin II
Angiotensin I is a decapeptide without apparent physiologic effect. In a single passage through the pulmonary circulation, angiotensin I is cleaved by a membrane-bound converting enzyme to produce angiotensin II, a very potent vasoconstrictor.Scientific American Medicine

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Cite this Entry

“Angiotensin I.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/angiotensin%20I. Accessed 31 Jan. 2023.

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