The turn of the screw: the bacterial flagellar motor

Article Abstract:

A review was done to discuss the flagellar motors of Salmonella typhimurium and Escherichia coli. The flagellum consists of a long, thin, rigid flagellar filament which is connected to the hook by two junctional proteins. This hook, which serves as a universal joint, allows the filament and motor to rotate about different axes. As for the motor mechanisms, about 50 genes are involved to the flagellum and its chemosensory system. Mutations in these genes may result in torque generation and motor reversal.

Flagella (Microbiology), Flagella, Salmonella typhimurium

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The minE ring: An FtsZ-independent cell structure required for selection of the correct division site in E. coli

Article Abstract:

The FtsZ ring and linked factors mediate Escherichia coli cell division. The combined action of an inhibitor of FtsZ ring formation (MinCD) and a topological specificity factor is required for selection of the correct division site. It is shown that MinE-Gfp fusion gathers in an annular structure close to the middle of young cells, and its formation required MinD, but was independent of MinC.

Observations, Cell research, Cytological research

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