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RasA Is Required for Myxococcus xanthus Development and Social Motility

Section of Microbiology and Center for Genetics and Development, University of California, Davis, California 95616

Received 1 April 2005/ Accepted 6 July 2005

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.

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