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糖基化修饰在代谢性疾病中的作用及研究进展

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摘要 O-连接的β-N-乙酰葡糖胺(O-GlcNAc)修饰是一种普遍存在于细胞质或细胞核中的蛋白质翻译后修饰过程.这是一种以O-糖苷键将N-乙酰葡糖胺(N-acetylglucosamine, GlcNAc)连接到蛋白质丝氨酸/苏氨酸羟基上的蛋白质翻译后修饰[1].与经典的糖基化不同,O-GlcNAc修饰更类似于磷酸化修饰,是一种快速而可逆的动态调节过程.越来越多证据表明这种动态的修饰过程可以调节细胞的生命过程,比如信号转导、转录、翻译以及蛋白酶体的降解[2].同时,蛋白质的O-GlcNAc修饰紊乱和人类许多疾病的发生也密切相关[3].
出处 《中国医师杂志》 CAS 2015年第11期1616-1619,共4页 Journal of Chinese Physician
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