Angiotensin I is an inactive precursor peptide hormone in the renin-angiotensin system that is converted to angiotensin II by the angiotensin-converting enzyme (ACE) primarily in the lungs. It plays a crucial role in regulating blood pressure and electrolyte balance.
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An enzyme produced by the kidneys that starts the process of converting angiotensinogen to angiotensin I, crucial for blood pressure regulation.
Angiotensin: converting enzyme (ACE) - An enzyme that facilitates the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor involved in blood pressure control.