Methionine metabolism in plants: chloroplasts are autonomous for de novo methionine synthesis and can import S-adenosylmethionine from the cytosol.

@article{Ravanel2004MethionineMI,
  title={Methionine metabolism in plants: chloroplasts are autonomous for de novo methionine synthesis and can import S-adenosylmethionine from the cytosol.},
  author={St{\'e}phane Ravanel and Maryse A Block and Pascal Rippert and Samuel Jabrin and Gilles Curien and Fabrice R{\'e}beill{\'e} and Roland Douce},
  journal={The Journal of biological chemistry},
  year={2004},
  volume={279 21},
  pages={22548-57}
}
The subcellular distribution of Met and S-adenosylmethionine (AdoMet) metabolism in plant cells discloses a complex partition between the cytosol and the organelles. In the present work we show that Arabidopsis contains three functional isoforms of vitamin B(12)-independent methionine synthase (MS), the enzyme that catalyzes the methylation of homocysteine to Met with 5-methyltetrahydrofolate as methyl group donor. One MS isoform is present in chloroplasts and is most likely required to… CONTINUE READING
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