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Molecular and Functional Characterization of a Family of Amino Acid Transporters from Arabidopsis1
- Article from:
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Plant Physiology
- Article date:
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October 1, 2004
- Author:
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Copyright informationCopyright American Society of Plant Physiologists Oct 2004. Provided by ProQuest LLC. (Hide copyright information)
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More than 50 distinct amino acid transporter genes have been identified in the genome of Arabidopsis, indicating that transport of amino acids across membranes is a highly complex feature in plants. Based on sequence similarity, these transporters can be divided into two major superfamilies: the amino acid transporter family and the amino acid polyamine choline transporter family. Currently, mainly transporters of the amino acid transporter family have been characterized. Here, a molecular and functional characterization of amino acid polyamine choline transporters is presented, namely the cationic amino acid transporter (CAT) subfamily. CAT5 functions as a high-affinity, basic amino acid ...
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