Mitochondrial serine acetyltransferase functions as a pacemaker of cysteine synthesis in plant cells.

@article{Haas2008MitochondrialSA,
  title={Mitochondrial serine acetyltransferase functions as a pacemaker of cysteine synthesis in plant cells.},
  author={Fabian B Haas and Corinna Heeg and Rafael Queiroz and Andrea Bauer and Markus Wirtz and Ruediger Hell},
  journal={Plant physiology},
  year={2008},
  volume={148 2},
  pages={
          1055-67
        }
}
Cysteine (Cys) synthesis in plants is carried out by two sequential reactions catalyzed by the rate-limiting enzyme serine acetyltransferase (SAT) and excess amounts of O-acetylserine(thiol)lyase. Why these reactions occur in plastids, mitochondria, and cytosol of plants remained unclear. Expression of artificial microRNA (amiRNA) against Sat3 encoding mitochondrial SAT3 in transgenic Arabidopsis (Arabidopsis thaliana) plants demonstrates that mitochondria are the most important compartment for… CONTINUE READING

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