Vba2p, A Vacuolar Membrane Protein Involved in Basic Amino Acid Transport in <i>Schizosaccharomyces pombe</i>

  • SUGIMOTO Naoko
    Department of Applied Bioresource Science, Faculty of Agriculture, Ehime University
  • IWAKI Tomoko
    Department of Applied Bioresource Science, Faculty of Agriculture, Ehime University
  • CHARDWIRIYAPREECHA Soracom
    Department of Applied Bioresource Science, Faculty of Agriculture, Ehime University
  • SHIMAZU Masamitsu
    Department of Applied Chemistry, Muroran Institute of Technology
  • SEKITO Takayuki
    Department of Applied Bioresource Science, Faculty of Agriculture, Ehime University
  • TAKEGAWA Kaoru
    Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University
  • KAKINUMA Yoshimi
    Department of Applied Bioresource Science, Faculty of Agriculture, Ehime University

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タイトル別名
  • Vba2p, A Vacuolar Membrane Protein Involved in Basic Amino Acid Transport in Schizosaccharomyces pombe
  • Vba2p, a vacuolar membrane protein involved in basic amino acid transport in <italic>Schizosaccharomyces pombe</italic>

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抄録

A recent study filling the gap in the genome sequence in the left arm of chromosome 2 of Schizosaccharomyces pombe revealed a homolog of budding yeast Vba2p, a vacuolar transporter of basic amino acids. GFP-tagged Vba2p in fission yeast was localized to the vacuolar membrane. Upon disruption of vba2, the uptake of several amino acids, including lysine, histidine, and arginine, was impaired. A transient increase in lysine uptake under nitrogen starvation was lowered by this mutation. These findings suggest that Vba2p is involved in basic amino acid transport in S. pombe under diverse conditions.

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