Cyclic nonapeptide with a disulfide bridge — classic neurohormone.
Part of the Neuropeptides & signaling cluster
Overview
Oxytocin is a nine-amino-acid neuropeptide and hormone involved in labor, lactation, and social behavior. It is a classic model of cyclic peptide structure.
Source & context
Biological / chemical source: Hypothalamus
Primary research or clinical context: Childbirth induction (clinical)
Sequence and ring
Oxytocin (CYIQNCPLG) forms a disulfide bridge between the two cysteine residues, creating a cyclic N-terminal region that is essential for receptor recognition.
Sequence
One-letter sequence commonly cited for Oxytocin (educational; isoforms and modifications may differ):
FAQ about Oxytocin
What is Oxytocin?+
Oxytocin is a nine-amino-acid neuropeptide and hormone involved in labor, lactation, and social behavior. It is a classic model of cyclic peptide structure.
Is Oxytocin an approved medicine?+
Oxytocin is discussed here as a research / educational topic. Childbirth induction (clinical). This is not medical advice.
What is the typical length of Oxytocin?+
Oxytocin is commonly described as approximately 9 amino acids (Neuropeptide).