前肽又称蛋白质前体、前蛋白，是一种无活性的蛋白质或肽，可以通过翻译后修饰变成活性的蛋白质或肽。一些细胞会分泌蛋白质前体。[1] 胰岛素原就是一种前肽 ，它被切去一段无活性的C肽之后，便成为有活性的胰岛素。[2]
参考文献
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