The Myxococcus xanthus pilT locus is required for social gliding motility although pili are still produced
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چکیده
منابع مشابه
RasA is required for Myxococcus xanthus development and social motility.
An insertion in the rasA gene entirely blocked developmental aggregation and sporulation in Myxococcus xanthus while also reducing swarm expansion on a 0.3% agar surface. Data presented here demonstrate that rasA is required for extracellular fibril formation and social gliding motility.
متن کاملAglZ is a filament-forming coiled-coil protein required for adventurous gliding motility of Myxococcus xanthus.
The aglZ gene of Myxococcus xanthus was identified from a yeast two-hybrid assay in which MglA was used as bait. MglA is a 22-kDa cytoplasmic GTPase required for both adventurous and social gliding motility and sporulation. Genetic studies showed that aglZ is part of the A motility system, because disruption or deletion of aglZ abolished movement of isolated cells and aglZ sglK double mutants w...
متن کاملMyxococcus xanthus dif genes are required for biogenesis of cell surface fibrils essential for social gliding motility.
Myxococcus xanthus social (S) gliding motility has been previously reported by us to require the chemotaxis homologues encoded by the dif genes. In addition, two cell surface structures, type IV pili and extracellular matrix fibrils, are also critical to M. xanthus S motility. We have demonstrated here that M. xanthus dif genes are required for the biogenesis of fibrils but not for that of type...
متن کاملA CheW homologue is required for Myxococcus xanthus fruiting body development, social gliding motility, and fibril biogenesis.
In bacteria with multiple sets of chemotaxis genes, the deletion of homologous genes or even different genes in the same operon can result in disparate phenotypes. Myxococcus xanthus is a bacterium with multiple sets of chemotaxis genes and/or homologues. It was shown previously that difA and difE, encoding homologues of the methyl-accepting chemoreceptor protein (MCP) and the CheA kinase, resp...
متن کاملGliding motility in bacteria: insights from studies of Myxococcus xanthus.
Gliding motility is observed in a large variety of phylogenetically unrelated bacteria. Gliding provides a means for microbes to travel in environments with a low water content, such as might be found in biofilms, microbial mats, and soil. Gliding is defined as the movement of a cell on a surface in the direction of the long axis of the cell. Because this definition is operational and not mecha...
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ژورنال
عنوان ژورنال: Molecular Microbiology
سال: 1997
ISSN: 0950-382X,1365-2958
DOI: 10.1046/j.1365-2958.1997.1791550.x