由MinE诱导的大肠杆菌MinD蛋白的膜重新分布。
Membrane redistribution of the Escherichia coli MinD protein induced by MinE.
作者信息
Rowland S L, Fu X, Sayed M A, Zhang Y, Cook W R, Rothfield L I
机构信息
Department of Microbiology, University of Connecticut Health Center, Farmington, Connecticut 06032, USA.
出版信息
J Bacteriol. 2000 Feb;182(3):613-9. doi: 10.1128/JB.182.3.613-619.2000.
Abstract
Escherichia coli cells contain potential division sites at midcell and adjacent to the cell poles. Selection of the correct division site at midcell is controlled by three proteins: MinC, MinD, and MinE. It has previously been shown (D. Raskin and P. de Boer, Cell 91:685-694, 1997) that MinE-Gfp localizes to the midcell site in an MinD-dependent manner. We use here Gfp-MinD to show that MinD associates with the membrane around the entire periphery of the cell in the absence of the other Min proteins and that MinE is capable of altering the membrane distribution pattern of Gfp-MinD. Studies with the isolated N-terminal and C-terminal MinE domains indicated different roles for the two MinE domains in the redistribution of membrane-associated MinD.
摘要
大肠杆菌细胞在细胞中部和细胞两极附近含有潜在的分裂位点。细胞中部正确分裂位点的选择由三种蛋白质控制：MinC、MinD和MinE。先前的研究表明（D. Raskin和P. de Boer，《细胞》91:685 - 694，1997），MinE - Gfp以依赖MinD的方式定位于细胞中部位点。我们在此使用Gfp - MinD来表明，在没有其他Min蛋白的情况下，MinD与细胞整个外周的膜结合，并且MinE能够改变Gfp - MinD的膜分布模式。对分离的MinE N端和C端结构域的研究表明，这两个MinE结构域在膜相关MinD的重新分布中发挥不同作用。
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