Journal ArticleDOI
An S-adenosylmethionine requirement for chemotaxis in Escherichia coli.
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TLDR
The results support the hypothesis that SAM is required for a normal tactic response to a chemical stimulus in Escherichia coli.Abstract:
A spontaneous ethionine-resistant mutant of Escherichia coli was found to be nonchemotactic. The mutant had low S-adenosylmethionine (SAM) synthetase activity and a greatly reduced SAM pool. Transd...read more
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Journal ArticleDOI
Chemotaxis in bacteria.
TL;DR: The present review will restrict itself to the recent work on chemotaxis in Escherichia coli and Salmonella typhimurium.
Journal ArticleDOI
Identification of a protein methyltransferase as the cheR gene product in the bacterial sensing system
Wayne R. Springer,D. E. Koshland +1 more
TL;DR: In mutants of the generally nonchemotactic cheR class of Salmonella typhimurium, the methylase is not required for tumbling but appears to be essential for maintaining the appropriate rate constants and levels of the regulator of the chemotactic response.
Journal ArticleDOI
Chemomechanical coupling without ATP: the source of energy for motility and chemotaxis in bacteria.
TL;DR: The source of energy for bacterial motility is the intermediate in oxidative phosphorylation, not ATP directly as mentioned in this paper, but for chemotaxis, there is an additional requirement, presumably ATP.
Journal ArticleDOI
Methylation of a membrane protein involved in bacterial chemotaxis
TL;DR: A protein methylation reaction involved in Chemotaxis of Escherichia coli has been identified and the transferred methyl group is derived from methionine and is labile, in accord with the known fact that chemotaxis requires a continuous supply of methionines.
Journal ArticleDOI
A response regulator model in a simple sensory system
TL;DR: Bacterial behavior is shown to be modulated through a simple on-off switching device which directs migration toward favorable conditions and away from unfavorable ones and appears to be relevant to more complex hormonal and neural signaling systems.
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