Peptide大百科

A polypeptide is a single linear chain of amino acids. A protein are one or more polypeptides more than about 50 amino acids long. An oligopeptide or (simply) a peptide is a polypeptide less than 30-50 amino acids long. A dipeptide has two amino acids. A tripeptide has three amino acids. A pentapeptide has five amino acids. A nonapeptide has nine amino acids (e.g., oxytocin). A neuropeptide is a peptide that is active in association with neural tissue. A peptide hormone is a peptide that acts as a hormone.

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