Flagellar motor switch protein
In molecular biology, the flagellar motor switch protein (Flig) is one of three proteins in certain bacteria coded for by the gene fliG. The other two proteins are FliN coded for by fliN, and FliM coded for by fliM. The protein complex regulates the direction of flagellar rotation and hence controls swimming behaviour. The switch is a complex apparatus that responds to signals transduced by the chemotaxis sensory signalling system during chemotactic behaviour. CheY, the chemotaxis response regulator, is believed to act directly on the switch to induce a switch in the flagellar motor direction of rotation.
| FliG C-terminal domain | |||||||||
|---|---|---|---|---|---|---|---|---|---|
crystal structure of the middle and c-terminal domains of the flagellar rotor protein flig | |||||||||
| Identifiers | |||||||||
| Symbol | FliG_C | ||||||||
| Pfam | PF01706 | ||||||||
| Pfam clan | CL0436 | ||||||||
| InterPro | IPR000090 | ||||||||
| SCOP2 | 1qc7 / SCOPe / SUPFAM | ||||||||
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| Flagellar motor switch protein FliM | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| Symbol | FliM | ||||||||
| Pfam | PF02154 | ||||||||
| Pfam clan | CL0355 | ||||||||
| InterPro | IPR001689 | ||||||||
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