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Details of our achievement

Publication list

  1. K. Akama and S. Tanifuji (1989) Nucleotide sequence of a methionine initiator tRNA gene of Arabidopsis thaliana. Plant Mol. Biol., 13, 599-600.
  2. K. Akama and S. Tanifuji (1989) Nucleotide sequence of a putative pseudogene of histidine tRNA from Arabidopsis thaliana. Plant Mol. Biol., 13,721-722.
  3. K. Akama and S. Tanifuji (1990) Sequence analysis of three tRNAPhe nuclear genes and a mutated gene, and one gene for tRNAAla from Arabidopsis thaliana. Plant Mol. Biol., 15, 337-346.
  4. K. Akama, H. Shiraishi, S. Ohta, K. Nakamura, K. Okada and Y. Shimura (1992) Efficient transformation using hypocotyl explants of Arabidopsis thaliana: comparison of the efficiencies with various organs, plant ecotypes and Agrobacterium strains. Plant Cell Rep., 12, 7-11.
  5. K. Akama, H. Puchta and B. Hohn (1995) Efficient Agrobacterium-mediated transformation of Arabidopsis thaliana using the bar gene as selectable marker. Pant Cell Rep., 14, 450-454.
  6. T. Ito, M. Hirano, K. Akama, Y. Shimura and K. Okada (1995) Touch-inducible genes for calmodulin and a calmodulin-related protein are located in tandem on a chromosome of Arabidopsis thaliana. Plant Cell Physiol., 36, 1369-1373.
  7. K. Akama (1996) Molecular cloning and sequencing of a nuclear gene encoding tRNAGln (UUG) from Arabidopsis thaliana. Biochim. Biophys. Acta., 1307, 127-128.
  8. K. Akama and M. Kashihara (1996) Plant nuclear tRNAMet genes are ubiquitously interrupted by introns. Plant Mol. Biol., 32, 427-434.
  9. R. Kumar, L. Marechal-Drouard, K. Akama, and I. Small (1996) Striking differences in mitochondria tRNA import between different plant species. Mol. Gen. Genet., 252, 404-411.
  10. K. Akama, A. Nass, V. Junker and H. Beier (1997) Characterization of nuclear tRNATyr introns: their evolution from red algae to higher plants. FEBS Lett., 417, 213-218.
  11. K. Akama, V. Junker and H. Beier (1998) Characterization of a nuclear tRNACys gene from Arabidopsis thaliana. Plant Physiol.,116, 446.
  12. K. Akama, Y. Yukawa, M. Sugiura and I. Small (1998) Plant cytosolic tRNAHis possesses an exceptional C54 in the canonical TΨC loop. Nucleic Acids Res., 26, 2708-2714.
  13. H. Kikuchi, S. Toki, S. Hirose, K. Akama and F. Takaiwa (1999) Molecular characterization of a gene for alanine aminotransferase from rice (Oryza sativa). Plant Mol. Biol., 39, 149-159.
  14. K. Akama, V. Junker, Y. Yukawa, M. Sugiura and H. Beier (2000) Splicing of Arabidopsis tRNAMet precursors in tobacco cell and wheat germ extracts. Plant Mol. Biol., 44, 155-156.
  15. K. Akama, V. Junker, and H. Beier (2000) Identification of two catalytic subunits of tRNA splicing endonuclease from Arabidopsis thaliana.GENE, 257, 177-185.
  16. Y. Yukawa, H. Fan, K. Akama, H. Beier and H.J. Gross and M. Sugiura (2001) A tobacco nuclear extract supporting transcription, processing, splicing and modification of plant intron-containing tRNA precursors. Plant J., 28, 583-594.
  17. K. Akama, T. Akihiro, M. Kitagawa, F. Takaiwa (2001) Rice (Oryza sativa) contains a novel isoform of glutamate decarboxylase that lacks an authentic calmodulin-binding domain at the C-terminus. Biochim. Biophys. Acta, 1552, 143-150.
  18. K. Akama and H. Beier (2003) Translational nonsense codon suppression as indicator for functional pre-tRNA splicing in transformed Arabidopsis hypocotyl-derived calli. Nucleic Acids Res., 31, 1197-1207.
  19. Y. Yukawa, T. Mizutani, K. Akama and M. Sugiura (2007) A survey of expressed tRNA genes in the chromosome I of Arabidopsis using an RNA polymerase III- dependent in vitro transcription system. GENE 392, 7-13.
  20. K. Akama and F. Takaiwa (2007) C-terminal extension of rice glutamate decarboxylase (OsGAD2) functions as an autoinhibitory domain and overexpression of a truncated mutant results in the accumulation of extremely high levels of GABA in plant cells. J. Exp. Bot, 58, 2699-2707.
  21. M. Englert, A. Latz, D. Becker, O. Gimple, H. Beier and K. Akama (2007) Plant pre-tRNA splicing enzymes are targeted to multiple cellular compartments. Biochemie, 89, 1351-1365.
  22. T. Akihiro, T. Fujimura, H. Ezura and K. Akama (2008) Olig microarray analysis of transcription in γ-aminobutyic acid-overaccumulating rice calli. Rice Genetics Newsletter, 24, 55-58.
  23. T. Akihiro, S. Koike, R. Tani, T. Tominaga, S Watanabe, Y. Iijima, K. Aoki, D. Shibata, H. Ashihara, C. Matsukura, K. Akama and H. Ezura (2008) Biochemical mechanism on GABA accumulation during fruit development in tomato. Plant Cell Physiol., 49: 1378-1389.
  24. K. Akama, J. Kanetou, S. Shimosaki, K. Kawakami, S. Tsuchikura, and Fumio Takaiwa (2009) Seed-specific expression of truncated OsGAD2 produces GABA-enriched rice grains that influence a decrease in blood pressure in spontaneously hypertensive rats. Transgenic Res. 18: 865-876.
  25. N. Mae, Y. Makino, S. Oshita, Y. Kawagoe, A. Tanaka, T. Akihiro, K. Akama, S. Koike, C. Matsukura, H. Ezura (2010) Stimulation of γ-aminobutyric acid production in vine-ripened tomato (Solanum lycopersicum L.) fruits under an adjusted aerobic atmosphere, J Packaging Sci & Technol, Japan 19: 375-381.