原核细胞骨架 

新月柄杆菌的细胞骨架元件:原核细胞骨架元件与其真核生物中的同功物质的对比[1]

原核细胞骨架(英語:prokaryotic cytoskeleton)是原核生物中所有结构纤维英语protein filament的总称。人们曾经认为,原核生物没有细胞骨架,但随着可视化技术和结构测定的进展,FtsZ在1990年代初的发现改观了这一认识[2]。并不是所有原核细胞骨架都是真核细胞中骨架蛋白的类似物,一些没有真核同源物的原核骨架元件也已发现[3][4][5][6] 。这些细胞骨架元件在各种原核生物的细胞分裂与保护,細胞極性英语Cell polarity与形态决定中有着不可或缺的作用[7][8]

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