Definition of "nonpeptide" [nonpeptide]

• Any material that is not a peptide (noun)

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• "When the Nobel Prizewinner in chemistry for 1955, Vincent du Vigneaud, synthesized the peptide hormone oxytocin, which is a nonpeptide, this was a very great step forward."
• "Smith RG, Leng G (1998) The nonpeptide growth hormone secretagogue, MK-0677, activates hypothalamic arcuate nucleus neurons in vivo."
• "This study revealed for the first time that fully nonpeptide aromatic and heterocyclic enediyne compounds can inhibit furin activity in vitro with IC50 in low to medium micromolar ranges depending on the nature of the structure and type of substituent present."