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细菌线性质粒的复制研究

, PP. 32-36

Keywords: 线性质粒,复制,细菌,末端蛋白,发夹末端

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Abstract:

细菌的线性质粒是近年来基础微生物学研究的一个新热点。线性质粒的复制与环状质粒相比,其最突出的特点就是它的5'末端填补机制——填补因为5'末端引物被切除所留下的缺口。根据线性质粒末端结构的不同将其分为两大类:一类具有共价闭合的发夹末端,另一类具有共价结合的末端蛋白。就细菌线性质粒复制的研究现状作一综述,重点介绍了具有两种不同末端结构的线性质粒5'末端填补机制。

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