贝克斯（Bex）是必需的大肠杆菌GTP酶埃拉（Era）在枯草芽孢杆菌中的同源物，是正常细胞分裂和孢子形成所必需的。
Bex, the Bacillus subtilis homolog of the essential Escherichia coli GTPase Era, is required for normal cell division and spore formation.
作者信息
Minkovsky Natalie, Zarimani Arash, Chary Vasant K, Johnstone Brian H, Powell Bradford S, Torrance Pamela D, Court Donald L, Simons Robert W, Piggot Patrick J
机构信息
Department of Microbiology and Immunology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, USA.
出版信息
J Bacteriol. 2002 Nov;184(22):6389-94. doi: 10.1128/JB.184.22.6389-6394.2002.
Abstract
The Bacillus subtilis bex gene complemented the defect in an Escherichia coli era mutant. The Bex protein showed 39 percent identity and 67 percent similarity to the E. coli Era GTPase. In contrast to era, bex was not essential in all strains. bex mutant cells were elongated and filled with diffuse nucleoid material. They grew slowly and exhibited severely impaired spore formation.
摘要
枯草芽孢杆菌的bex基因弥补了大肠杆菌era突变体的缺陷。Bex蛋白与大肠杆菌Era GTP酶有39%的同一性和67%的相似性。与era不同，bex在所有菌株中并非必需。bex突变体细胞拉长，充满弥散的类核物质。它们生长缓慢，孢子形成严重受损。
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