Changing reactivity of receptor carboxyl groups during bacterial sensing.

@article{Stock1981ChangingRO,
  title={Changing reactivity of receptor carboxyl groups during bacterial sensing.},
  author={Jeffry B. Stock and Daniel E. Koshland},
  journal={The Journal of biological chemistry},
  year={1981},
  volume={256 21},
  pages={10826-33}
}
A microdistillation procedure has been developed to analyze carboxylmethylation of the Mr = 60,000 chemoreceptor proteins involved in chemotaxis of Salmonella typhimurium and Escherichia coli. Methylation levels obtained by this method are substantially higher than those reported in the literature. In highly motile strains under optimal conditions there are approximately 100,000 methylated receptor residues per cell which are entirely composed of gamma-methylglutamyl esters. Whereas with… CONTINUE READING