Bacterial Proteins - metabolism, Cell and Molecular Biology of Microbes, Chemotaxis, Cytosine - metabolism, Genetic aspects, Membrane Proteins - metabolism, Methyl-Accepting Chemotaxis Proteins, Niacin, Niacin - metabolism, Pseudomonas putida, Pseudomonas putida - physiology
Soil bacteria are generally capable of growth on a wide range of organic chemicals, and pseudomonads are particularly adept at utilizing aromatic compounds. Pseudomonads are motile bacteria that are capable of sensing a wide range of chemicals, using both energy taxis and chemotaxis. Whilst the identification of specific chemicals detected by the ≥26 chemoreceptors encoded in Pseudomonas genomes is ongoing, the functions of only a limited number of Pseudomonas chemoreceptors have been revealed to date. We report here that McpC, a methyl-accepting chemotaxis protein in Pseudomonas putida F1 that was previously shown to function as a receptor for cytosine, was also responsible for the chemotactic response to the carboxylated pyridine nicotinic acid.
Parales, R.E., Nesteryuk, V., Hughes, J.G., Luu, R.A., and Ditty, J.L. (2014). The cytosine chemoreceptor McpC in Pseudomonas putida F1 also detects nicotinic acid. Microbiology 160:2661-2669.