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Rhodobacter sphaeroides: complexity in chemotactic signalling.

机译:球形红细菌:趋化信号的复杂性。

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摘要

Most bacteria have much more complex chemosensory systems than those of the extensively studied Escherichia coli. Rhodobacter sphaeroides, for example, has multiple homologues of the E. coli chemosensory proteins. The roles of these homologues have been extensively investigated using a combination of deletion, subcellular localization and phosphorylation assays. These studies have shown that the homologues have specific roles in the sensory pathway, and they differ in their cellular localization and interactions with other components of the pathway. The presence of multiple chemosensory pathways might enable bacteria to tune their tactic responses to different environmental conditions.
机译:与广泛研究的大肠杆菌相比,大多数细菌的化学感应系统要复杂得多。例如,球形红细菌具有大肠杆菌化学感测蛋白的多个同源物。这些同系物的作用已使用缺失,亚细胞定位和磷酸化分析相结合进行了广泛研究。这些研究表明,同源物在感觉途径中具有特定作用,并且它们在细胞定位和与途径的其他成分的相互作用方面不同。多种化学感应途径的存在可能使细菌能够调整其对不同环境条件的战术反应。

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