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三叶因子家族研究进展 被引量:10

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摘要 三叶因子家族(trefoil factor family,TFF)是一群主要由胃肠道黏液细胞分泌的小分子多肽.其共同特征为均含一特殊的 P 结构域,由38-39个氨基酸通过6个半胱氨酸残基经由3个二硫键相互联接,使整个肽链扭曲、折叠形成三叶状结构,由此命名.这种结构的稳定性使三叶因子家族具有明显的抗蛋白酶水解、酸消化及耐热特性,因而能在消化道复杂的环境中保持生物活性.目前在哺乳动物体内发现的有 pS2/TFF1、SP/TFF2和 ITF/TFF3三种,他们具有黏膜保护与修复、肿瘤抑制、信号传导、调节细胞凋亡等功能.
出处 《世界华人消化杂志》 CAS 2003年第12期2019-2021,共3页 World Chinese Journal of Digestology
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参考文献29

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