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Biosynthesis and function of cell-surface polysaccharides in the social bacterium Myxococcus xanthus
Biological Chemistry ( IF 2.9 ) Pub Date : 2020-11-26 , DOI: 10.1515/hsz-2020-0217
María Pérez-Burgos 1 , Lotte Søgaard-Andersen 1
Affiliation  

Abstract In bacteria, cell-surface polysaccharides fulfill important physiological functions, including interactions with the environment and other cells as well as protection from diverse stresses. The Gram-negative delta-proteobacterium Myxococcus xanthus is a model to study social behaviors in bacteria. M. xanthus synthesizes four cell-surface polysaccharides, i.e., exopolysaccharide (EPS), biosurfactant polysaccharide (BPS), spore coat polysaccharide, and O-antigen. Here, we describe recent progress in elucidating the three Wzx/Wzy-dependent pathways for EPS, BPS and spore coat polysaccharide biosynthesis and the ABC transporter-dependent pathway for O-antigen biosynthesis. Moreover, we describe the functions of these four cell-surface polysaccharides in the social life cycle of M. xanthus.

中文翻译:

社会细菌Myxococcus xanthus中细胞表面多糖的生物合成和功能

摘要 在细菌中,细胞表面多糖具有重要的生理功能,包括与环境和其他细胞的相互作用以及保护免受各种压力。革兰氏阴性 delta-proteobacterium Myxococcus xanthus 是研究细菌社会行为的模型。M. xanthus 合成四种细胞表面多糖,即胞外多糖 (EPS)、生物表面活性剂多糖 (BPS)、孢子壳多糖和 O-抗原。在这里,我们描述了阐明 EPS、BPS 和孢子外壳多糖生物合成的三种 Wzx/Wzy 依赖性途径以及 O 抗原生物合成的 ABC 转运蛋白依赖性途径的最新进展。此外,我们描述了这四种细胞表面多糖在 M. xanthus 社会生命周期中的功能。
更新日期:2020-11-26
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