Characterization of Rice Functional Monosaccharide Transporter,OsMST5 | Zendy

Budsaraporn Ngampanya | Zendy; Anna Sobolewska | Zendy; Taito Takeda | Zendy; Kyoko Toyofuku | Zendy; Jarunya Narangajavana | Zendy; Akira Ikeda | Zendy; Junji Yamaguchi | Zendy

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Characterization of Rice Functional Monosaccharide Transporter,OsMST5

Author(s) -

Budsaraporn Ngampanya,

Anna Sobolewska,

Taito Takeda,

Kyoko Toyofuku,

Jarunya Narangajavana,

Akira Ikeda,

Junji Yamaguchi

Publication year - 2003

Publication title -

bioscience biotechnology and biochemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.509

H-Index - 116

eISSN - 1347-6947

pISSN - 0916-8451

DOI - 10.1271/bbb.67.556

Subject(s) - monosaccharide , complementary dna , transporter , biochemistry , heterologous expression , heterologous , galactose , sugar , amino acid transporter , yeast , biology , chemistry , gene , recombinant dna

cDNA of a monosaccharide transporter in rice, OsMST5 (Oryza sativa monosaccharide transporter 5) was cloned and its sugar transport activity was characterized by heterologous expression analysis. The amino acid sequence and topology were similar to the sequences and topology of other plant monosaccharide transporters. Yeast cells co-expressed with OsMST5 cDNA transported some monosaccharide substrates. The transport rate increased when ethanol as an electron donor was added, so the transporter was an energy-dependent active one. Most of the OsMST5 was expressed in panicles before pollination, indicating that it is associated with pollen development in rice.

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