Stoichiometry of chemoreceptor

Range receptor/CheA/CheW ≈ 6/1/1
Organism Bacteria Escherichia coli
Reference Bitbol AF, Wingreen NS. Fundamental constraints on the abundances of chemotaxis proteins. Biophys J. 2015 Mar 10 108(5):1293-305. doi: 10.1016/j.bpj.2015.01.024. p.1293 left column bottom paragraphPubMed ID25762341
Primary Source [7] Briegel, A., et al., 2014. New insights into bacterial chemoreceptor array structure and assembly from electron cryotomography. Biochemistry. 53: 1575–1585. doi: 10.1021/bi5000614.PubMed ID24580139
Method Electron cryotomography. Primary source abstract: "Bacterial chemoreceptors cluster in highly ordered, cooperative, extended arrays with a conserved architecture, but the principles that govern array assembly remain unclear. Here [investigators] show images of cellular arrays as well as selected chemoreceptor complexes reconstituted in vitro that reveal new principles of array structure and assembly."
Comments P.1293 left column bottom paragraph: "In E. coli, transmembrane chemoreceptors form large and highly ordered arrays at the cell poles. Chemoreceptors are organized into trimers of dimers, and linked by CheW and CheA into a honeycomb lattice (refs 4, 5, 6 and primary source), with a 6:1:1 receptor/CheA/CheW stoichiometry in terms of monomers (primary source)."
Entered by Uri M
ID 112522