Part:BBa_C0020

CheY "tumbling" chemotaxis coding sequence

This part codes for CheY, a protein used by E. coli for chemotaxis. Increased concentrations of CheY has been shown to make E. coli tumble more.

Usage and Biology

CheY is phosphorolated by CheA-P to become CheY-P. CheY-P then binds to FliM, a component of the flagellar motor switch complex in E. coli, making it spin counter clockwise more. This makes the organism tumble more, as opposed to going straight.

Structure from PDB entry (click for more info and reference)