Mechanism of bacterial gliding motility
نویسندگان
چکیده
منابع مشابه
Bacterial motility: Secretory secrets of gliding bacteria
Many bacteria glide over surfaces without the aid of flagella. Gliding is still somewhat mysterious, but recent studies show that it involves specialized secretory systems that assemble membrane-associated filaments, and the recognition of extracellular components that trigger movement via transmembrane transducers.
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Cyanobacteria and myxobacteria use slime secretion for gliding motility over surfaces. The slime is produced by the nozzle-like pores located on the bacteria surface. To understand the mechanism of gliding motion and its relation to slime polymerization, we have performed molecular dynamics simulations of a molecular nozzle with growing inside polymer chains. These simulations show that the com...
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Cells of Flavobacterium johnsoniae and of many other members of the phylum Bacteroidetes exhibit rapid gliding motility over surfaces by a unique mechanism. These cells do not have flagella or pili; instead, they rely on a novel motility apparatus composed of Gld and Spr proteins. SprB, a 669-kDa cell-surface adhesin, is required for efficient gliding. SprB was visualized by electron microscopy...
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Protein-directed intracellular transport has not been observed in bacteria despite the existence of dynamic protein localization and a complex cytoskeleton. However, protein trafficking has clear potential uses for important cellular processes such as growth, development, chromosome segregation, and motility. Conflicting models have been proposed to explain Myxococcus xanthus motility on solid ...
متن کاملBacterial Gliding Motility: Rolling Out a Consensus Model
Some bacteria glide mysteriously on surfaces without using flagella, pili, or other external appendages. Recent studies suggest how gliding motors in the inner membrane may transduce force to the cell surface.
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ژورنال
عنوان ژورنال: Nippon Saikingaku Zasshi
سال: 2015
ISSN: 0021-4930,1882-4110
DOI: 10.3412/jsb.70.375