FtsZ dynamics in bacterial division: What, how, and why?

FtsZ dynamics in bacterial division: What, how, and why?
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DOI:
10.1016/j.ceb.2020.10.013
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发表时间:
2021-03
影响因子:
7.5
通讯作者:
Goley ED
Goley ED
中科院分区:
生物学2区
文献类型:
--
作者:
Barrows JM;Goley ED

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细菌细胞分裂由分裂体(divisome)协调,分裂体是一种以微管蛋白同源物FtsZ为中心的蛋白质复合物。FtsZ聚合成限定分裂位点的动态环,募集下游蛋白质,并指导肽聚糖合成以驱动收缩。最近的研究已经记录了FtsZ聚合物簇在细胞和体外的研磨。新出现的证据表明,FtsZ动力学调节主要是由内在特性的FtsZ本身和膜锚定蛋白FtsA。虽然Z环组装广泛需要FtsZ动力学,但它们在收缩过程中的作用可能因细菌物种而异。这些最新进展为未来的研究奠定了基础,以研究FtsZ动力学如何在物理和/或功能上与肽聚糖代谢酶偶联,以指导有效的分裂。
Bacterial cell division is orchestrated by the divisome, a protein complex centered on the tubulin homolog FtsZ. FtsZ polymerizes into a dynamic ring that defines the division site, recruits downstream proteins, and directs peptidoglycan synthesis to drive constriction. Recent studies have documented treadmilling of FtsZ polymer clusters both in cells and in vitro. Emerging evidence suggests that FtsZ dynamics are regulated largely by intrinsic properties of FtsZ itself and by the membrane anchoring protein FtsA. While FtsZ dynamics are broadly required for Z-ring assembly, their role(s) during constriction may vary among bacterial species. These recent advances set the stage for future studies to investigate how FtsZ dynamics are physically and/or functionally coupled to peptidoglycan metabolic enzymes to direct efficient division.
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