Novel Bacterial N-Acetyltransferase Gene for Herbicide Detoxification in Land Plants and Selection Maker in Plant Transformation
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- YUN Choong-Soo
- Cell-Free Science and Technology Research Center and the Venture Business Laboratory, Ehime University
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- HASEGAWA Hisakazu
- Hokko Chemical Industry, Ltd.
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- NANAMIYA Hideaki
- Cell-Free Science and Technology Research Center and the Venture Business Laboratory, Ehime University
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- TERAKAWA Teruhiko
- Hokko Chemical Industry, Ltd.
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- TOZAWA Yuzuru
- Cell-Free Science and Technology Research Center and the Venture Business Laboratory, Ehime University
Bibliographic Information
- Other Title
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- Novel Bacterial<i>N</i>-Acetyltransferase Gene for Herbicide Detoxification in Land Plants and Selection Maker in Plant Transformation
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Abstract
Phosphinothricin (PPT) is the active ingredient in bialaphos, which specifically inhibits glutamine synthetase in land plants. We isolated a novel PPT-resistant gene from a soil bacterium, Nocardia sp., and characterized it. The encoded protein, consisting of 177 amino acids, showed significant similarity to bacterial N-acetyltransferases, and we originally designated the gene MAT (methionine sulfone N-acetyltransferase). The recombinant MAT protein exhibited functions as a methionine sulfone and PPT N-acetyltransferase in vitro. The PPT N-acetyltransferase activity reached the maximum at pH 8–8.5, indicating that the protein might optimally function in chloroplasts. We therefore constructed a MAT gene, encoding the enzyme with a chloroplast-localizing signal in its amino-terminus. Plant transformation with the construct resulted in the generation of PPT-resistant rice and Arabidopsis. Furthermore, the transformed Arabidopsis was selectable in a synthetic medium containing PPT. The MAT gene thus facilitated establishment of herbicide-resistant plants, and as a new selectable gene marker.
Journal
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- Bioscience, Biotechnology, and Biochemistry
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Bioscience, Biotechnology, and Biochemistry 73 (5), 1000-1006, 2009
Japan Society for Bioscience, Biotechnology, and Agrochemistry
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Details 詳細情報について
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- CRID
- 1390001206477392384
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- NII Article ID
- 10027540472
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- NII Book ID
- AA10824164
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- ISSN
- 13476947
- 09168451
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- NDL BIB ID
- 10234570
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed