A preliminary approach to biological function and application of Recombinant Human Prothymosin α

Abstract

胸腺素α原(Prothymosinα,ProTα)于1984年首次从大鼠胸腺中分离出来,当时被认为是一种胸腺激素,后来发现这种蛋白普遍存在于所有哺乳动物组织中,人ProTα分子量约为12.4kD,由109个氨基酸构成,其蛋白序列富含大量酸性氨基酸,是一种高度酸性的亲水性多肽,等电点为3.5,蛋白结构是一种罕见的非折叠的“天然无结构蛋白”,带负电,免疫原性极差,具有核内定位信号,进化上高度保守,分布极其广泛,淋巴组织及非淋巴组织均可找到,基因定位于第2号染色体上,是哺乳动物中唯一被报道过带有磷酸化谷氨酸的蛋白。基因文库检测中显示人ProTα基因是细胞中表达最丰富的基因之一。 ProTα大量存在...Prothymosin α (ProTα) was intitally isolated from rat thymus, highly conserved among mammals. Human ProTα was a 109 amino acid residue polypetide, and its molecular weight was 12.4 kD. 3.5 of isoelectric point values, rich in glutamic acid. The structure of ProTα was an intrinsically disordered protein which structure was unfolded, with nuclear location signal, electrophorese to positive pole, a h...学位:理学硕士院系专业:环境与生态学院_生态学学号:3312012115166

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