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Bacterial chemotaxis is a method for cells to sense and adapt to chemicals in their environment. It is carried out by large arrays of membrane associated multi-protein complexes that form at the poles of the cells. The major players involved are the <scene name='57/571407/Single_ternary_complex/3'>transmembrane receptor</scene>, <scene name='57/571407/Single_ternary_complex/4'> histidine kinase CheA </scene>, and <scene name='57/571407/Single_ternary_complex/5'> adaptor protein CheW</scene>. Repellants and attractants bind to the periplasmic domain of the receptor. The signal is then relayed within the cytoplasm to govern CheA's kinase activity, and ultimately lead to changes in swimming behavior.
Bacterial chemotaxis is a method for cells to sense and adapt to chemicals in their environment. It is carried out by large arrays of membrane associated multi-protein complexes that form at the poles of the cells. The major players involved are the <scene name='57/571407/Single_ternary_complex/3'>transmembrane receptor</scene>, <scene name='57/571407/Single_ternary_complex/4'> histidine kinase CheA </scene>, and <scene name='57/571407/Single_ternary_complex/5'> adaptor protein CheW</scene>. Repellants and attractants bind to the periplasmic domain of the receptor. The signal is then relayed within the cytoplasm to govern CheA's kinase activity, and ultimately lead to changes in swimming behavior.
<scene name='57/571407/Ternary_complex_side_view/1'>Chemoreceptor complexes form extended hexagonal arrays</scene>

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Elizabeth R. Haglin, Michal Harel, Maryam Kashefy
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