Hormone

Angiotensin II

Angiotensin II is an eight-amino-acid peptide central to blood-pressure regulation via the renin–angiotensin system.

By The Peptides Codex Editorial TeamReviewed July 10, 2026

Length

8 aa

Class

Hormone

Function

Blood pressure regulation

Context

Hypertension research; clinical vasoconstrictor uses

Octapeptide effector of the RAS cascade.

Part of the Foundational & therapeutic peptides cluster

Overview

Angiotensin II is an eight-amino-acid peptide central to blood-pressure regulation via the renin–angiotensin system.

Source & context

Biological / chemical source: Renin-angiotensin system

Primary research or clinical context: Hypertension research; clinical vasoconstrictor uses

Cascade biology

Angiotensinogen → angiotensin I → angiotensin II illustrates proteolytic peptide activation — foundational for ACE inhibitor and ARB pharmacology education.

Sequence

One-letter sequence commonly cited for Angiotensin II (educational; isoforms and modifications may differ):

DRVYIHPF

Analyze sequences in the playground →

FAQ about Angiotensin II

What is Angiotensin II?+

Angiotensin II is an eight-amino-acid peptide central to blood-pressure regulation via the renin–angiotensin system.

Is Angiotensin II an approved medicine?+

Angiotensin II is discussed here as a research / educational topic. Hypertension research; clinical vasoconstrictor uses. This is not medical advice.

What is the typical length of Angiotensin II?+

Angiotensin II is commonly described as approximately 8 amino acids (Hormone).

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Human neutrophil peptide-1 (HNP-1) is an alpha-defensin antimicrobial peptide with a disulfide-stabilized structure important in innate immunity research.

Vasopressin

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References & further reading

Disclaimer: Educational content only. Not medical advice. Not instructions for human use. Research peptides and unapproved products may be restricted or illegal to market for human consumption in your jurisdiction. Consult qualified professionals and applicable law.

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Cite this: Peptides Codex — Angiotensin II educational profile.

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