Research Topics
Genomes and Genes | Akira IshihamaSummaryAffiliation: Hosei University Country: Japan Publications
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Detail Information
Publications
Prokaryotic genome regulation: a revolutionary paradigmAkira Ishihama
Department of Frontier Bioscience and Micro Nano Technology Research Center, Hosei University, Koganei, Tokyo 184 8584, Japan
Proc Jpn Acad Ser B Phys Biol Sci 88:485-508. 2012..The most complex network was identified in the regulation cascades of transcription of two master regulators for planktonic growth and biofilm formation...
Involvement of RNA-binding protein Hfq in the osmotic-response regulation of invE gene expression in Shigella sonneiJiro Mitobe
Department of Bacteriology, National Institute of Infectious Diseases, Shinjuku, Tokyo, Japan
BMC Microbiol 9:110. 2009..To date, the molecular details of the regulation of TTSS expression in response to osmotic pressure are not known. In the current study, we investigated the mechanism of regulation of TTSS by osmotic pressure...
Prokaryotic genome regulation: multifactor promoters, multitarget regulators and hierarchic networksAkira Ishihama
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo 184 8584, Japan
FEMS Microbiol Rev 34:628-45. 2010..The multifactor promoters and the multitarget transcription factors can be assembled into complex networks of transcription regulation, forming hierarchical networks...
Role of the biofilm master regulator CsgD in cross-regulation between biofilm formation and flagellar synthesisHiroshi Ogasawara
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo 184 8584, Japan
J Bacteriol 193:2587-97. 2011..Taking these findings together, we propose that the cell motility for planktonic growth is repressed by CsgD, thereby promoting the switch to biofilm formation...
The uncharacterized transcription factor YdhM is the regulator of the nemA gene, encoding N-ethylmaleimide reductaseYoshimasa Umezawa
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo 184 8584, Japan
J Bacteriol 190:5890-7. 2008..This is an addition to the mode of controlling activity of transcription factors by alkylation with chemical agents...
Novel roles of cAMP receptor protein (CRP) in regulation of transport and metabolism of carbon sourcesTomohiro Shimada
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo, Japan
PLoS ONE 6:e20081. 2011..One unique regulation mode is that a single and the same CRP molecule bound within intergenic regions often regulates both of divergently transcribed operons...
Participation of regulator AscG of the beta-glucoside utilization operon in regulation of the propionate catabolism operonYuji Ishida
Department of Frontier Bioscience, Hosei University, Tokyo, Japan
J Bacteriol 191:6136-44. 2009..Taken together, these data suggest a metabolic link through interplay between the asc and prp operons...
The transcription regulator AllR senses both allantoin and glyoxylate and controls a set of genes for degradation and reutilization of purinesAkiko Hasegawa
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo, Japan
Microbiology 154:3366-78. 2008..On the other hand, when glyoxylate is accumulated, AllR is inactivated for derepression of the pathway for energy production. RutR, the master regulator for pyrimidines and arginine, is also involved in this pathway-switching control...
Regulation of the Escherichia coli csgD promoter: interplay between five transcription factorsHiroshi Ogasawara
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo 184 8584, Japan
Microbiology 156:2470-83. 2010..In addition, we propose a novel regulation model of this complex csgD promoter through cooperation between the two positive factors (OmpR-IHF and RstA-IHF) and also between the two negative factors (CpxR-H-NS)...
A novel nucleoid protein of Escherichia coli induced under anaerobiotic growth conditionsJun Teramoto
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo 184 8584, Japan
Nucleic Acids Res 38:3605-18. 2010..We then propose that YgiP is a novel nucleoid protein of E. coli under anaerobiosis and propose to rename it Dan (DNA-binding protein under anaerobic conditions)...
The Escherichia coli RutR transcription factor binds at targets within genes as well as intergenic regionsTomohiro Shimada
Department of Frontier Bioscience and Micro Nano Technology Research Centre, Hosei University, Koganei, Tokyo 184 8584, Nippon Institute for Biological Science, Ome, Tokyo 198 0024, Japan
Nucleic Acids Res 36:3950-5. 2008..We suggest that either RutR has yet undiscovered function or that evolution has been slow to eliminate non-functional DNA sites for RutR because they do not have an adverse effect on cell fitness...
The Escherichia coli K-12 MntR miniregulon includes dps, which encodes the major stationary-phase DNA-binding proteinKaneyoshi Yamamoto
Department of Frontier Bioscience and Research Center for Micro Nano Technology, Hosei University, Koganei, Tokyo 184 8584, Japan
J Bacteriol 193:1477-80. 2011..coli chromosome in vivo, and we report that MntR binds to only four targets, adjacent to the mntH, mntR, yebN, and dps genes. Unexpectedly, we found that dps expression is directly repressed by Mn(2+)-MntR...
Novel roles of LeuO in transcription regulation of E. coli genome: antagonistic interplay with the universal silencer H-NSTomohiro Shimada
Hosei University, Department of Frontier Bioscience, Koganei, Tokyo 184 8540, Japan INRA UMR1319 MICALIS, 78352 Jouy en Josas, France AgroParisTech UMR MICALIS, 91300 Massy, France
Mol Microbiol 82:378-97. 2011..Taken together we propose that LeuO is a major player in antagonistic interplay against the universal silencer H-NS...
RutR is the uracil/thymine-sensing master regulator of a set of genes for synthesis and degradation of pyrimidinesTomohiro Shimada
Department of Frontier Bioscience and Micro Nano Technology Research Centre, Hosei University, Koganei, Tokyo 184 8584, Japan
Mol Microbiol 66:744-57. 2007..Altogether we propose that RutR is the pyrimidine sensor and the master regulator for a large set of the genes involved in the synthesis and degradation of pyrimidines...
Single live-bacterial cell assay of promoter activity and regulationJun Teramoto
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo, Japan
Genes Cells 15:1111-22. 2010..The heterogeneity in gcl promoter activity was, however, confirmed by Flow cytometry of suspension cultures. Our success provides an experimental system for the increased demand of single-cell biology in bacterial studies...
Novel regulation targets of the metal-response BasS-BasR two-component system of Escherichia coliHiroshi Ogasawara
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo, Japan
Microbiology 158:1482-92. 2012....
Two modes of autoregulation of the murR repressor in Escherichia coliDaiki Ishii
Department of Frontier Bioscience, Hosei University, Tokyo, Japan
Biosci Biotechnol Biochem 73:2528-30. 2009..We found that murR is stimulated in rich medium. This activation involves MurR and most of the IIBC components of the phosphotransferase system, suggesting auto-induction of murR by an activated form of MurR...
Characterization of CitA-CitB signal transduction activating genes involved in anaerobic citrate catabolism in Escherichia coliKaneyoshi Yamamoto
Department of Frontier Bioscience and Research Center for Micro Nano Technology, Hosei University, Koganei, Tokyo, Japan
Biosci Biotechnol Biochem 73:346-50. 2009..DNase-I footprinting assay indicated that CitB specifically bound on the intergenic region between the citA and citC genes. These results characterize the molecular mechanism of the CitA-CitB signal transduction system in E. coli...
Novel members of the Cra regulon involved in carbon metabolism in Escherichia coliTomohiro Shimada
Hosei University, Department of Frontier Bioscience, Koganei, Tokyo 184 8584, Japan
J Bacteriol 193:649-59. 2011..Taken together, we propose that Cra plays a key role in balancing the levels of the enzymes for carbon metabolism...
Involvement of the leucine response transcription factor LeuO in regulation of the genes for sulfa drug effluxTomohiro Shimada
Department of Frontier Bioscience, Hosei University, Tokyo, Japan
J Bacteriol 191:4562-71. 2009..The results described herein indicate that the yjcRQP operon, one of the LeuO targets, is involved in sensitivity control against sulfa drugs. We propose to rename the yjcRQP genes the sdsRQP genes (sulfa drug sensitivity determinant)...
Induction of the Escherichia coli cysK gene by genetic and environmental factorsKaneyoshi Yamamoto
Department of Frontier Bioscience and Research Center for Micro Nano Technology, Hosei University, Koganei, Tokyo, Japan
FEMS Microbiol Lett 323:88-95. 2011..Based on the findings, we constructed the high-level expression system of cysK...
Regulatory role of MlrA in transcription activation of csgD, the master regulator of biofilm formation in Escherichia coliHiroshi Ogasawara
Department of Frontier Bioscience, Hosei University, Tokyo, Japan
FEMS Microbiol Lett 312:160-8. 2010..The possible interplay between three activators was analysed in detail...
Induction of YdeO, a regulator for acid resistance genes, by ultraviolet irradiation in Escherichia coliYuki Yamanaka
Department of Frontier Bioscience and Research Center for Micro Nano Technology, Hosei University, Tokyo, Japan
Biosci Biotechnol Biochem 76:1236-8. 2012..This required the evgA and gadE genes in vivo. YdeO, induced by UV, controls the expression of a total of 21 genes. This accompanies SOS response in E. coli...
[Differentiation of Escherichia coli during transition from exponential growth to stationary phase]Akira Ishihama
Tanpakushitsu Kakusan Koso 51:958-65. 2006
Genomic SELEX search for target promoters under the control of the PhoQP-RstBA signal relay cascadeHiroshi Ogasawara
Hosei University, Department of Frontier Bioscience, Kajino cho 3 7 2, Koganei, Tokyo 184 8584, Japan
J Bacteriol 189:4791-9. 2007..With these data taken together, we conclude that the expression of both asr and csgD is under the direct control of the PhoQP-RstBA signal relay cascade...
Host factor Ebp1: selective inhibitor of influenza virus transcriptaseAyae Honda
Department of Frontier Bioscience and Micro Nano Technology Research Center, Hosei University, Koganei, Tokyo 184 8584, Japan
Genes Cells 12:133-42. 2007....
A novel regulator RcdA of the csgD gene encoding the master regulator of biofilm formation in Escherichia coliTomohiro Shimada
Department of Frontier Bioscience and Research Center for Micro Nano Technology, Hosei University, Koganei, Tokyo, 184 8584, Japan
Microbiologyopen 1:381-94. 2012....
The nucleoid-associated protein Dan organizes chromosomal DNA through rigid nucleoprotein filament formation in E. coli during anoxiaCi Ji Lim
National University of Singapore, Graduate School for Integrative Sciences and Engineering, Singapore
Nucleic Acids Res 41:746-53. 2013..Formation of the nucleoprotein filament provides a basis in understanding how Dan may play roles in both chromosomal DNA protection and gene regulation...
Novel regulator PgrR for switch control of peptidoglycan recycling in Escherichia coliTomohiro Shimada
Department of Frontier Bioscience, Hosei University, Koganei, Tokyo, Japan
Genes Cells 18:123-34. 2013..Taken together, we propose to rename YcjZ as PgrR (regulator of peptide glycan recycling)...
PdhR (pyruvate dehydrogenase complex regulator) controls the respiratory electron transport system in Escherichia coliHiroshi Ogasawara
Department of Frontier Bioscience, Hosei University, Kajino cho 3 7 2, Koganei, Tokyo 184 8584, Japan
J Bacteriol 189:5534-41. 2007..Taken together, we propose that PdhR is a master regulator for controlling the formation of not only the PDH complex but also the respiratory electron transport system...
