Mutations that affect control of the methylesterase activity of CheB, a component of the chemotaxis adaptation system in Escherichia coli.

Abstract excerpt

Sensory adaptation by the chemotaxis system of Escherichia coli requires adjustments of the extent of methyl esterification of the chemotaxis receptor proteins. One mechanism utilized by E. coli to make such adjustments is to control the activity of CheB, the enzyme responsible for removing receptor methyl ester groups. Previous work has established the existence of a multicomponent signal transduction pathway...

Topics

• Adaptation, Physiological
• Carboxylic Ester Hydrolases
• Chemotaxis
• Enzyme Activation
• Escherichia coli
• Mutation
• Phosphorylation