Biologically Active Substance
angiotensin I
Subclass of:
Angiotensins
Definitions related to angiotensin i:
  • A decapeptide that is cleaved from precursor angiotensinogen by RENIN. Angiotensin I has limited biological activity. It is converted to angiotensin II, a potent vasoconstrictor, after the removal of two amino acids at the C-terminal by ANGIOTENSIN CONVERTING ENZYME.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • An inactive form of the protein angiotensin. It is the precursor to the active form, angiotensin II.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
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