Endocytosis restricts Arabidopsis KNOLLE syntaxin to the cell division plane during late cytokinesis.

Endocytosis restricts Arabidopsis KNOLLE syntaxin to the cell division plane during late cytokinesis.
复制标题

DOI:
10.1038/emboj.2009.363
复制
发表时间:
2010-02-03
期刊:
影响因子:
11.4
通讯作者:
Grebe, Markus
Grebe, Markus
中科院分区:
生物学1区
文献类型:
--
作者:
Boutte, Yohann;Frescatada-Rosa, Marcia;Men, Shuzhen;Chow, Cheung-Ming;Ebine, Kazuo;Gustavsson, Anna;Johansson, Lenore;Ueda, Takashi;Moore, Ian;Juergens, Gerd;Grebe, Markus

文献摘要

参考文献

被引文献

相似文献

细胞质分裂是真核细胞分裂的最后阶段,在此期间细胞质在子细胞之间分裂。这一过程在动物和植物细胞之间有一定程度的不同,但syntaxin家族的蛋白质在不同的生物体中介导细胞分裂平面的膜融合。如何控制语法定位仍然是一个谜。在这里,我们报道了拟南芥KNOLLE合蛋白在细胞分裂平面的定位是通过涉及网格蛋白和动力蛋白相关蛋白1a依赖机制的固醇依赖性内吞作用来维持的。由于基因或药物对胞吞作用的干扰,KNOLLE在细胞-板融合后错误地定位到侧质膜。光漂白中荧光损失和光漂白后荧光恢复实验显示GFP-KNOLLE从分裂平面向侧膜的横向扩散。在一个内吞缺陷的甾醇生物合成突变体显示外侧KNOLLE扩散,KNOLLE分泌运输不受影响。因此,胞吞作用对横向扩散的限制可能有助于在细胞分裂后期维持syntaxin定位的特异性。
Cytokinesis represents the final stage of eukaryotic cell division during which the cytoplasm becomes partitioned between daughter cells. The process differs to some extent between animal and plant cells, but proteins of the syntaxin family mediate membrane fusion in the plane of cell division in diverse organisms. How syntaxin localization is kept in check remains elusive. Here, we report that localization of the Arabidopsis KNOLLE syntaxin in the plane of cell division is maintained by sterol-dependent endocytosis involving a clathrin- and DYNAMIN-RELATED PROTEIN1A-dependent mechanism. On genetic or pharmacological interference with endocytosis, KNOLLE mis-localizes to lateral plasma membranes after cell-plate fusion. Fluorescence-loss-in-photo-bleaching and fluorescence-recovery-after-photo-bleaching experiments reveal lateral diffusion of GFP-KNOLLE from the plane of division to lateral membranes. In an endocytosis-defective sterol biosynthesis mutant displaying lateral KNOLLE diffusion, KNOLLE secretory trafficking remains unaffected. Thus, restriction of lateral diffusion by endocytosis may serve to maintain specificity of syntaxin localization during late cytokinesis.
DOI: 10.1083/jcb.200901145
发表时间: 2009-05-18
期刊: The Journal of cell biology
影响因子: --
作者:
Klemm RW;Ejsing CS;Surma MA;Kaiser HJ;Gerl MJ;Sampaio JL;de Robillard Q;Ferguson C;Proszynski TJ;Shevchenko A;Simons K
通讯作者: Simons K
DOI: 10.1016/s0092-8674(03)00003-5
发表时间: 2003-01-24
期刊: CELL
影响因子: 64.5
作者:
Geldner, N;Anders, N;Jürgens, G
通讯作者: Jürgens, G
DOI: 10.1038/nature05046
发表时间: 2006-09-07
期刊: NATURE
影响因子: 64.8
作者:
Jaillais, Yvon;Fobis-Loisy, Isabelle;Gaude, Thierry
通讯作者: Gaude, Thierry
DOI: 10.1073/pnas.052712299
发表时间: 2002-03-05
影响因子: 11.1
作者:
Cutler, SR;Ehrhardt, DW
通讯作者: Ehrhardt, DW
DOI: 10.1105/tpc.107.053876
发表时间: 2007-11-01
期刊: PLANT CELL
影响因子: 11.6
作者:
Goh, Tatsuaki;Uchida, Wakana;Nakano, Akihiko
通讯作者: Nakano, Akihiko