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Sterile Petri dishes

无菌培养皿

公司名称: Sartorius
产品编号: 14-555-735
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Rapid Preparation of Unsheathed Bacterial Flagella
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2015-03-20
[Abstract]  The flagellum is required for bacterial swimming and swarming motility. In the biphasic Salmonella enterica serovar Typhimurium (S. Typhimurium), the flagellar filament is build up by two distinct monomeric subunits, flagellin FliC and FljB. S. Typhimurium has the ability to switch between two flagellins, FliC and FljB, in a phase-variable manner. The switch to FliC is called phase H1 and considered important for bacterial growth and survival in the spleen in a murine infection model of typhoid fever. Flagellin is secreted as monomeric subunits, but the majority of ... [摘要]  鞭毛是细菌游泳和群居运动所需的。在双相沙门氏菌鼠伤寒沙门氏菌(Typhimurium)(Typhimurium)中,鞭毛丝由两种不同的单体亚单位鞭毛蛋白FliC和FljB组成。 Typhimurium具有以相变方式在两个鞭毛蛋白FliC和FljB之间切换的能力。切换到FliC被称为H1期,并且被认为对于鼠伤寒热的鼠感染模型中的脾的细菌生长和存活是重要的。鞭毛蛋白作为单体亚基分泌,但是大多数鞭毛蛋白在分泌时作为鞭毛丝聚合。沙门氏菌鞭毛蛋白通常通过包括多步离心和酸处理的方法分离。在这里,我们描述了用于制备沙门氏菌鞭毛蛋白的简化方案以用于分析目的,以在没有抗体的帮助下确定鞭毛蛋白的量。所用的生长条件是固定相,对数期和模拟胃肠道的低氧和高盐条件。可以分析其他来源生物体的鞭毛蛋白表达,例如沙门氏菌和大肠杆菌的其他血清型,包括鞭毛相或遗传变异体。鞭毛蛋白表达分析补充鞭毛相关表型分析,如游泳和蜂群行为。

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