K
Keisuke Katsura
Researcher at University of Miyazaki
Publications - 8
Citations - 499
Keisuke Katsura is an academic researcher from University of Miyazaki. The author has contributed to research in topics: Escherichia coli & Genome. The author has an hindex of 6, co-authored 8 publications receiving 400 citations.
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Journal ArticleDOI
Genome Evolution and Plasticity of Serratia marcescens, an Important Multidrug-Resistant Nosocomial Pathogen
Atsushi Iguchi,Yutaka Nagaya,Elizabeth Pradel,Tadasuke Ooka,Yoshitoshi Ogura,Keisuke Katsura,Ken Kurokawa,Kenshiro Oshima,Masahira Hattori,Julian Parkhill,Mohamed Sebaihia,Sarah J. Coulthurst,Naomasa Gotoh,Nicholas R. Thomson,Nicholas R. Thomson,Jonathan J. Ewbank,Tetsuya Hayashi +16 more
TL;DR: The authors' comparative analyses reveal the core genome of S. marcescens and define the potential metabolic capacity, virulence, and multidrug resistance of this species, and show a remarkable intraspecies genetic diversity, both at the sequence level and with regards genome flexibility.
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A complete view of the genetic diversity of the Escherichia coli O-antigen biosynthesis gene cluster
Atsushi Iguchi,Sunao Iyoda,Taisei Kikuchi,Yoshitoshi Ogura,Keisuke Katsura,Makoto Ohnishi,Tetsuya Hayashi,Nicholas R. Thomson,Nicholas R. Thomson +8 more
TL;DR: A complete sequence set for the O-antigen biosynthesis gene clusters (O-AGCs) from all 184 recognized Escherichia coli O serogroups is presented, showing a stronger association between host phylogenetic lineage and O-serogroup diversification than previously recognized.
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The Shiga toxin 2 production level in enterohemorrhagic Escherichia coli O157:H7 is correlated with the subtypes of toxin-encoding phage.
Yoshitoshi Ogura,Shakhinur Islam Mondal,Shakhinur Islam Mondal,Rakibul Islam,Toshihiro Mako,Kokichi Arisawa,Keisuke Katsura,Tadasuke Ooka,Yasuhiro Gotoh,Kazunori Murase,Makoto Ohnishi,Tetsuya Hayashi +11 more
TL;DR: It is shown that one of the two subclades in the clade 8, a proposed hyper-virulent lineage of O157, carries the Stx2 phage subtype that confers the highest Stx1 production to the host strain, which may explain the proposed high virulence potential ofClade 8.
Journal ArticleDOI
Defining the Genome Features of Escherichia albertii, an Emerging Enteropathogen Closely Related to Escherichia coli
Tadasuke Ooka,Yoshitoshi Ogura,Keisuke Katsura,Kazuko Seto,Hideki Kobayashi,Kimiko Kawano,Eisuke Tokuoka,Masato Furukawa,Seiya Harada,Shuji Yoshino,Junji Seto,Tetsuya Ikeda,Keiji Yamaguchi,Kazunori Murase,Yasuhiro Gotoh,Naoko Imuta,Junichiro Nishi,Tânia A. T. Gomes,Lothar Beutin,Tetsuya Hayashi +19 more
TL;DR: A nested polymerase chain reaction system to directly detect E. albertii is developed and a valuable basis for future studies of this important emerging enteropathogen is provided.
Journal ArticleDOI
Systematic Identification and Sequence Analysis of the Genomic Islands of the Enteropathogenic Escherichia coli Strain B171-8 by the Combined Use of Whole-Genome PCR Scanning and Fosmid Mapping
Yoshitoshi Ogura,Hiroyuki Abe,Keisuke Katsura,Ken Kurokawa,Asadulghani,Atsushi Iguchi,Tadasuke Ooka,Keisuke Nakayama,Atsushi Yamashita,Masahira Hattori,Masahira Hattori,Toru Tobe,Tetsuya Hayashi +12 more
TL;DR: A systemic and genome-wide survey of the GEIs in strain B171-8, one of the prototype strains of EPEC, was performed by the combined use of whole-genome PCR scanning and fosmid mapping and identified 22 large GEIs, including nine lambda-like prophages, three P2- like prophage, the LEE, and three additional integrative elements.