单词	neuropeptide
释义	neuropeptide /njʊərə(ʊ)ˈpɛptʌɪd / noun Biochemistry Any of a group of compounds which act as neurotransmitters and are short-chain polypeptides.To date, we know of approximately 300 substances that act as neurotransmitters, including endorphins, neuropeptides, adrenaline, noradrenaline and acetylcholine.... Most biologically active peptide hormones and neuropeptides are produced from larger inactive precursor proteins by endoproteolytic cleavage and further processing within the secretory pathway. TppII is 38% identical to human and rat proteins that degrade neuropeptides by attacking their amino termini and releasing three amino acid fragments.
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