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Neuropeptide (CRF family)

Urocortin

Urocortin is a 40-amino-acid neuropeptide of the corticotropin-releasing factor (CRF) family. Binding both CRHR1 and CRHR2 receptors, it participates in the hypothalamic-pituitary-adrenal stress response and modulates appetite, mood and cardiovascular function. This page is educational and not medical advice.

By The Peptides Codex Editorial TeamReviewed July 10, 2026
Length
40 aa
Class
Neuropeptide (CRF family)
Function
CRHR1/CRHR2 agonist; stress, appetite and cardiovascular signaling
Context
Stress-axis and cardiovascular physiology research

A 40-residue member of the corticotropin-releasing factor family that tunes the stress response.

Also known as: UCN · UCN1 · urocortin 1

Part of the Neuropeptides & signaling cluster

Overview

Urocortin is a 40-amino-acid neuropeptide of the corticotropin-releasing factor (CRF) family. Binding both CRHR1 and CRHR2 receptors, it participates in the hypothalamic-pituitary-adrenal stress response and modulates appetite, mood and cardiovascular function. This page is educational and not medical advice.

Source & context

Biological / chemical source: Encoded by the UCN gene (brain and peripheral tissues)

Primary research or clinical context: Stress-axis and cardiovascular physiology research

Family and receptors

Urocortin belongs to the CRF peptide family alongside CRF, urocortin II and urocortin III. Urocortin 1 binds both CRHR1 and CRHR2 with high affinity, whereas urocortins II and III favor CRHR2, giving the family layered control over the stress axis.

Physiological interest

As a regulator of the HPA axis, urocortin influences ACTH and corticosteroid release, feeding behavior and anxiety-related responses. Its cardiovascular actions, including vasodilation and effects on cardiac function, make it a target in stress and heart-related research.

FAQ about Urocortin

What is Urocortin?+

Urocortin is a 40-amino-acid neuropeptide of the corticotropin-releasing factor (CRF) family. Binding both CRHR1 and CRHR2 receptors, it participates in the hypothalamic-pituitary-adrenal stress response and modulates appetite, mood and cardiovascular function. This page is educational and not medical advice.

Is Urocortin an approved medicine?+

Urocortin is discussed here as a research / educational topic. Stress-axis and cardiovascular physiology research. This is not medical advice.

What is the typical length of Urocortin?+

Urocortin is commonly described as approximately 40 amino acids (Neuropeptide (CRF family)).

Related peptides

References & further reading

  1. 1.Wikipedia — Urocortin
  2. 2.PMC — Urocortins in the mammalian endocrine system
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 — Urocortin educational profile.
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