Receptor clustering and sensitivity

• Chemotactic receptors form clusters at cell poles in E. coli. (Maddock and Shapiro 1993, Shimizu and Le Novère 2000);

• Clustered Receptors could enhance sensitivity (Changeux et al. 1967, Bray et al. 1998);

• Integration of various signals (Hazelbauer et al. 1989).

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