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Tomohiro Kainou, Kazunori Okada, Kengo Suzuki, Tsuyoshi Nakagwa, Hideyuki Matsuda and Makoto Kawamukai. Dimer formation of octaprenyl diphosphate synthase (IspB) is essential for chain length determination of ubiquinone. J. Biol. Chem. 276 (11), 7876-7883, (2001)

Naonori Uchida, Kengo Suzuki, Ryoichi Saiki, Tomohiro Kainou, Katsunori Tanaka, Hideyuki Matsuda and Makoto Kawamukai.  Phenotypes of fission yeast defective in ubiquinone production due to disruption of the gene for p-hydroxybenzoate polyprenyl diphosphate tranferase. J. Bacteriol. 182: 6933-6939 (2000)

Kazunori Okada, Yasuhiro Kamiya, XuFen Zhu, Kengo Suzuki, Katsunori Tanaka, Tsuyoshi Nakagawa, Hideyuki Matsuda and Makoto Kawamukai. Cloning of the sdsA gene encoding solanesyl diphosphate synthase from Rhodobacter capsulatus and its functional expression in Escherichia coli and Saccharomyces cerevisiae. J. Bacteriol. 179:5992-5998 (1997)

Kazunori Okada, Masaru Minehira, XuFen Zhu, Kengo Suzuki, Tsuyoshi Nakagawa, Hideyuki Matsuda and Makoto Kawamukai. The ispB gene encoding octaprenyl diphosphate synthase is essential for growth of Escherichia coli. J. Bacteriol 179:3058-3060 (1997)

XuFen Zhu, Kengo Suzuki, Takeshi Saito, Kazunori Okada, Katsunori Tanaka, Tsuyoshi Nakagawa, Hideyuki Matsuda and Makoto Kawamukai. Geranyl geranyl pyrophosphate synthase encoded by the newly isolated gene GGPS6 from Arabidopsis thaliana is localized in mitochondria. Plant Mol Biol. 35:331-341 @@(1997)

Kengo Suzuki, Kazunori Okada, Yasuhiro Kamiya, XuFen Zhu, Tsuyoshi Nakagawa, Makoto Kawamukai and Hideyuki Matsuda. Analysis of the decaprenyl diphoshate synthase (dps) gene in fission yeast suggests a role of ubiquinone as an antioxidant. J. Biochem. 121:496-505 (1997)

XuFen Zhu, Kengo Suzuki, Kazunori Okada, Katsunori Tanaka, Tsuyoshi Nakagawa, Makoto Kawamukai and Hideyuki Matsuda. Cloning and functional expression of a novel geranylgeranyl pyrophosphate synthase gene from Arabidopsis thaliana in Escherichia coli. Plant Cell Physiol. 38:357-361 (1997)

Kazunori Okada, Kengo Suzuki, Yasuhiro Kamiya, XuFen Zhu, Shingo Fujisakai, Yukinobu Nishimura, Tokuzo Nishino, Tsuyoshi Nakagawa, Makoto Kawamukai, Hideyuki Matsuda. Polyprenyl diphosphate synthase essentially defines the length of the side chain of ubiquinone. Biochim. Biophys.Acta. 1302/3:217-223 (1996)

XuFen Zhu, Mihoko Yuasa, Kazunori Okada, Kengo Suzuki, Tsuyoshi Nakagawa, Makoto Kawamukai and Hideyuki Matsuda. Production of ubiquinone in Escherichia coli by expression of various genes responsible for ubiquinone biosynthesis. J. Ferment. Bioeng. 79(5):493-495. (1995).

Kengo Suzuki, Minoru Ueda, Mihoko Yuasa, Tsuyoshi Nakagawa, Makoto Kawamukai, and Hideyuki Matsuda. Evidence that E. coli ubiA product is a functional homolog of yeast COQ2 and the regulation of the ubiA gene expression. Biosci. Biotech. Biochem. 58(10), 1814-1819. (1994).

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Analysis of the genes involved in ubiquinone biosynthesis of Escherichia coli and Schizosaccharomyces pombe (1997)