S-methylmethionine metabolism in Escherichia coli.

@article{Thanbichler1999SmethylmethionineMI,
  title={S-methylmethionine metabolism in Escherichia coli.},
  author={M. Thanbichler and B. Neuhierl and A. B{\"o}ck},
  journal={Journal of bacteriology},
  year={1999},
  volume={181 2},
  pages={
          662-5
        }
}
Selenium-accumulating Astragalus spp. contain an enzyme which specifically transfers a methyl group from S-methylmethionine to the selenol of selenocysteine, thus converting it to a nontoxic, since nonproteinogenic, amino acid. Analysis of the amino acid sequence of this enzyme revealed that Escherichia coli possesses a protein (YagD) which shares high sequence similarity with the enzyme. The properties and physiological role of YagD were investigated. YagD is an S-methylmethionine… Expand
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