Definition of "nonapeptide" [nonapeptide]

• An oligopeptide formed from nine amino acids (noun)

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• "When Vincent du Vigneaud synthesized a peptide hormone, oxytocin, which is a nonapeptide, for the first time, this represented a great step forward which was rewarded with the Nobel prize for 1955."
• "We tested whether OppA MTB transports the nonapeptide bradykinin (RPPGFSPFR)."
• "We present evidence that OppA binds to a wide range of peptides in terms of their size, ranging from the nonapeptide bradykinin to the tripeptide"