Identifying and characterizing plastidic 2-oxoglutarate/malate and dicarboxylate transporters in Arabidopsis thaliana.

@article{Taniguchi2002IdentifyingAC,
  title={Identifying and characterizing plastidic 2-oxoglutarate/malate and dicarboxylate transporters in Arabidopsis thaliana.},
  author={Mitsutaka Taniguchi and Yojiro Taniguchi and Michio Kawasaki and Satomi Takeda and Tomohiko Kato and Shusei Sato and Satoshi Tabata and Hiroshi Miyake and Tatsuo Sugiyama},
  journal={Plant & cell physiology},
  year={2002},
  volume={43 7},
  pages={706-17}
}
We characterized three Arabidopsis genes, AtpOMT1, AtpDCT1 and AtpDCT2, localized on chromosome 5 and homologous to spinach chloroplastic 2-oxoglutarate/malate transporter (OMT) gene. The yeast-expressed recombinant AtpOMT1 protein transported malate and 2-oxoglutarate but not glutamate. By contrast, the recombinant AtpDCT1 protein transported 2-oxoglutarate and glutamate at similar affinities in exchange for malate. These findings suggested that AtpOMT1 is OMT and AtpDCT1 is a general… CONTINUE READING
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