三叶肽(Ｔｒｅｆｏｉｌｐｅｐｔｉｄｅｓ)是新发现的一族小分子蛋白,具有上皮保护和加速胃肠道粘膜愈合的作用。1　概　　述三叶肽是一族富含半胱氨酸的小分子肽,以部位特异性方式在一定的上皮组织表达。1989年Ｔｈｉｍ发现它们带有三对二硫键,呈“三叶草”襻状结构图案特征,故 Trefoilpeptides are a newly discovered family of small molecule proteins with epithelial protection and acceleration of gastrointestinal mucosal healing. 1 Overview Trefoil peptide is a family of cysteine-rich small peptides, in a site-specific manner in a certain degree of epithelial expression. Thim discovered in 1989 that they had three pairs of disulfide bonds in the shape of a “clover”