Chapter title |
In Vitro Assay for Measuring Receptor-Kinase Activity in the Bacillus subtilis Chemotaxis Pathway
|
---|---|
Chapter number | 10 |
Book title |
Bacterial Chemosensing
|
Published in |
Methods in molecular biology, January 2018
|
DOI | 10.1007/978-1-4939-7577-8_10 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7576-1, 978-1-4939-7577-8
|
Authors |
Hanna E. Walukiewicz, George W. Ordal, Christopher V. Rao |
Abstract |
The sensing apparatus of the Bacillus subtilis chemotaxis pathway involves a complex consisting of chemoreceptors, the CheA histidine kinase, and the CheV and CheW adaptor proteins. Attractants and repellents alter the rate of CheA autophosphorylation, either by directly binding the receptors or by indirectly interacting with them through intermediate binding proteins. We describe an in vitro assay for measuring receptor-kinase activity in B. subtilis. This assay has been used to investigate the mechanism of signal transduction in B. subtilis chemotaxis and the disparate mechanisms employed by this bacterium for sensory adaptation and gradient sensing. |
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