Flagellar motor switch protein

FliG C-terminal domain
crystal structure of the middle and c-terminal domains of the flagellar rotor protein flig
Identifiers
SymbolFliG_C
PfamPF01706
Pfam clanCL0436
InterProIPR000090
SCOP21qc7 / SCOPe / SUPFAM
Available protein structures:
Pfam  structures / ECOD  
PDBRCSB PDB; PDBe; PDBj
PDBsumstructure summary
Flagellar motor switch protein FliM
Identifiers
SymbolFliM
PfamPF02154
Pfam clanCL0355
InterProIPR001689
Available protein structures:
Pfam  structures / ECOD  
PDBRCSB PDB; PDBe; PDBj
PDBsumstructure summary

In molecular biology, the flagellar motor switch protein (Flig) is one of three proteins in certain bacteria coded for by the gene fliG.[1] The other two proteins are FliN coded for by fliN,[2] and FliM coded for by fliM.[3] The protein complex regulates the direction of flagellar rotation and hence controls swimming behaviour.[4] The switch is a complex apparatus that responds to signals transduced by the chemotaxis sensory signalling system during chemotactic behaviour.[4] CheY, the chemotaxis response regulator, is believed to act directly on the switch to induce a switch in the flagellar motor direction of rotation.

  1. ^ "flig in UniProtKB". www.uniprot.org. Retrieved 21 March 2022.
  2. ^ Cite error: The named reference uniprot2 was invoked but never defined (see the help page).
  3. ^ "flim in UniProtKB". www.uniprot.org. Retrieved 21 March 2022.
  4. ^ a b Roman SJ, Frantz BB, Matsumura P (October 1993). "Gene sequence, overproduction, purification and determination of the wild-type level of the Escherichia coli flagellar switch protein FliG". Gene. 133 (1): 103–108. doi:10.1016/0378-1119(93)90232-R. PMID 8224881.