Yin Wen, He Jin, Yu Ziniu, Wang Jieping
State Key Laboratory ofAgricultural Microbiology, National Engineering Research Center of Microbial Pesticides, Huazhong Agricultural University, Wuhan 430070, China.
Sheng Wu Gong Cheng Xue Bao. 2011 Oct;27(10):1401-7.
Sup35 in its native state is a translation termination factor in Saccharomyces cerevisiae. The prion domain of Sup35p can form amyloid-like proteinaceous fibrils in vitro and in vivo. Furthermore, the in-register cross beta-sheet structure of Sup35p amyloid fibrils is similar to those formed in other species. Therefore, studies on mechanism of Sup35p self-assembly can be an appropriate model to study protein misfolding-related diseases and prion biology. Because of its ability to self-assemble into nanowires, the prion domain of Sup35p has been widely used in biotechnology and nanotechnology.
天然状态下的 Sup35 是酿酒酵母中的一种翻译终止因子。Sup35p 的朊病毒结构域在体外和体内均可形成淀粉样蛋白纤维。此外,Sup35p 淀粉样纤维的同向平行交叉β-折叠结构与其他物种形成的结构相似。因此,对 Sup35p 自组装机制的研究可以作为研究蛋白质错误折叠相关疾病和朊病毒生物学的合适模型。由于其能够自组装成纳米线,Sup35p 的朊病毒结构域已在生物技术和纳米技术中得到广泛应用。