The bacterial cell division proteins FtsA and FtsZ self-organize into dynamic cytoskeletal patterns.
The bacterial cell division proteins FtsA and FtsZ self-organize into dynamic cytoskeletal patterns.
复制标题
DOI:
10.1038/ncb2885
复制
发表时间:
2014-01
影响因子:
21.3
通讯作者:
中科院分区:
文献类型:
--
作者:
Bacterial cytokinesis is commonly initiated by the Z-ring, a cytoskeletal structure assembling at the site of division. Its primary component is FtsZ, a tubulin superfamily GTPase, which is recruited to the membrane by the actin-related protein FtsA. Both proteins are required for the formation of the Z-ring, but if and how they influence each other’s assembly dynamics is not known. Here, we reconstituted FtsA-dependent recruitment of FtsZ polymers to supported membranes, where both proteins self-organize into complex patterns, such as fast-moving filament bundles and chirally rotating rings. Using fluorescence microscopy and biochemical perturbations, we found that these large-scale rearrangements of FtsZ emerge from its polymerization dynamics and a dual, antagonistic role of FtsA: recruitment of FtsZ filaments to the membrane and a negative regulation on FtsZ organization. Our findings provide a model for the initial steps of bacterial cell division and illustrate how dynamic polymers can self-organize into large-scale structures.
登录
查看更多内容
影响因子:
4.8
作者:
Beuria, Tushar K.;Mullapudi, Srinivas;Margolin, William
通讯作者:
Margolin, William
影响因子:
3.2
作者:
Ma, XL;Margolin, W
通讯作者:
Margolin, W
影响因子:
16.8
作者:
Loose, Martin;Fischer-Friedrich, Elisabeth;Schwille, Petra
通讯作者:
Schwille, Petra
影响因子:
3.4
作者:
Kas, J;Strey, H;Janmey, PA
通讯作者:
Janmey, PA
影响因子:
4.8
作者:
Haney, SA;Glasfeld, E;de Boer, P
通讯作者:
de Boer, P