Cited by 3,529Helicobacter pylori-related gastroenterology studiesBacterial Genetics and BiotechnologyGenomics and Phylogenetic Studies

The complete genome sequence of the gastric pathogen Helicobacter pylori

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Tomb, Jean-F., White, Owen, Kerlavage, Anthony R., Clayton, Rebecca A., Sutton, Granger G., Fleischmann, Robert D., Ketchum, Karen A., Klenk, Hans Peter +34 more·1997·Nature

Abstract

Helicobacter pylori, strain 26695, has a circular genome of 1,667,867 base pairs and 1,590 predicted coding sequences. Sequence analysis indicates that H. pylori has well-developed systems for motility, for scavenging iron, and for DNA restriction and modification. Many putative adhesins, lipoproteins and other outer membrane proteins were identified, underscoring the potential complexity of host-pathogen interaction. Based on the large number of sequence-related genes encoding outer membrane proteins and the presence of homopolymeric tracts and dinucleotide repeats in coding sequences, H. pylori, like several other mucosal pathogens, probably uses recombination and slipped-strand mispairing within repeats as mechanisms for antigenic variation and adaptive evolution. Consistent with its restricted niche, H. pylori has a few regulatory networks, and a limited metabolic repertoire and biosynthetic capacity. Its survival in acid conditions depends, in part, on its ability to establish a positive inside-membrane potential in low pH.

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  • The complete genome sequences of H. pylori strains 26695 and J99 demonstrate that this organism contains only two rRNA operons.

    “The complete genome sequences of two H. pylori strains, 26695 and J99 (1, 34), have been published elsewhere and demonstrate that this organism contains only two rRNA operons, increasing the likelihood that rRNA mutations could arise.”
  • Analysis of H. pylori genome sequences indicates that the smallest distances between rdxA and one of the 16S rRNA genes are 193 kb in strain 26695 and 205 kb in strain J99.

    “Analysis of the H. pylori genome sequences (1, 34) indicates that the smallest distances between rdxA and one of the 16S rRNA genes are 193 kb in strain 26695 and 205 kb in strain J99.”

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Research works printed but not linked: 4

  1. Moore, G. R. & Pettigrew, G. W. Cytochromes c: Evolutionary, Structural and Physicochemical Aspects (Springer, Berlin, 1990).
  2. Pettigrew, G. W. & Moore, G. R. Cytochromes c: Biological Aspects (Springer, Berlin, 1987).
  3. Williams, P. A. thesis, Oxford Univ. (1996).
  4. Sonnhammer, E. L. L., Eddy, S. R. & Durbin, R. Pfam: A comprehensive database of protein families based on seed alignments. Proteins (in the press).

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Authors
Tomb, J.-F., White, O., Kerlavage, A. R., Clayton, R. A., Sutton, G. G., Fleischmann, R. D., Ketchum, K. A., Klenk, H. P., Gill, S., Dougherty, B. A., Nelson, K., Quackenbush, J., Zhou, L., Kirkness, E. F., Peterson, S., Loftus, B., Richardson, D., Dodson, R., Khalak, H. G., Glodek, A., McKenney, K., Fitzegerald, L. M., Lee, N., Adams, M. D., Hickey, E. K., Berg, D. E., Gocayne, J. D., Utterback, T. R., Peterson, J. D., Kelley, J. M., Cotton, M. D., Weidman, J. M., Fujii, C., Bowman, C., Watthey, L., Wallin, E., Hayes, W. S., Borodovsky, M., Karp, P. D., Smith, H. O., Fraser, C. M., & Venter, J. C.
Affiliations
  • Washington University in St. Louis (US)
  • Stockholm University (SE)
  • Georgia Institute of Technology (US)
  • SRI International (US)
  • Johns Hopkins University (US)
Corresponding author
Tomb, Jean-F.
Venue
Nature
Published
1997-08-07
Volume
388
Issue
6642
Pages
539-547
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2110132014
Cited by
3,529
References
45
Citations by year
2026: 23 · 2025: 41 · 2024: 36 · 2023: 45 · 2022: 36 · 2021: 60 · 2020: 43 · 2019: 50 · 2018: 71 · 2017: 66 · 2016: 92 · 2015: 82 · 2014: 148 · 2013: 101 · 2012: 102
FWCI
324.03
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • European Synchrotron Radiation Facility
  • National Institutes of Health
  • National Center for Research Resources
Topics
  • Health Sciences › Medicine › Surgery › Helicobacter pylori-related gastroenterology studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
Keywords
Helicobacter pylori, complete genome sequence, motility genes, iron acquisition, adhesins, outer membrane proteins, lipoproteins, host-pathogen interaction, antigenic variation, slipped-strand mispairing, recombination, regulatory networks, acid resistance, membrane potential, strain 26695
MeSH terms
Antigenic Variation, Bacterial Adhesion, Bacterial Proteins, Base Sequence, Cell Division, DNA Repair, DNA, Bacterial, Biological Evolution, Hydrogen-Ion Concentration, Molecular Sequence Data, Recombination, Genetic, Transcription, Genetic, Protein Biosynthesis, Virulence, Gene Expression Regulation, Bacterial, Helicobacter pylori, Genome, Bacterial

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