Cited by 226Heat shock proteins researchClostridium difficile and Clostridium perfringens researchBacterial Genetics and Biotechnology

GroEL (Hsp60) of Clostridium difficile is involved in cell adherence.

Hennequin, Claire, Collignon, Anne, Bourlioux, Pierre, Waligora-Dupriet, Anne-Judith, Karjalainen, Tuomo, Barc, Marie-Claude, Porcheray, Fabrice·2001·Microbiology

Abstract

Previous results have demonstrated that adherence of Clostridium difficile to tissue culture cells is augmented by various stresses; this study focussed on whether the GroEL heat shock protein is implicated in this process. The 1940 bp groESL operon of C. difficile was isolated by PCR. The 1623 bp groEL gene is highly conserved between various C. difficile isolates as determined by RFLP-PCR and DNA sequencing, and the operon is present in one copy on the bacterial chromosome. The 58 kDa GroEL protein was expressed in Escherichia coli in fusion with glutathione S:-transferase and the fusion protein was purified from IPTG-induced bacterial lysates by affinity chromatography on glutathione-Sepharose. A polyclonal, monospecific antiserum was obtained for GroEL which established by immunoelectron microscopy, indirect immunofluorescence and immunoblot analysis that GroEL is released extracellularly after heat shock and can be surface associated. Cell fractionation experiments suggest that GroEL is predominantly cytoplasmic and membrane bound. GroEL-specific antibodies as well as the purified protein partially inhibited C. difficile cell attachment and expression of the protein was induced by cell contact, suggesting a role for GroEL in cell adherence.

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Crossref · 10.1099/00221287-147-1-87

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Authors
Hennequin, C., Collignon, A., Bourlioux, P., Waligora-Dupriet, A.-J., Karjalainen, T., Barc, M.-C., & Porcheray, F.
Affiliations
Université Paris-Sud (FR)
Corresponding author
Karjalainen, Tuomo
Venue
Microbiology
Published
2001-01-01
Volume
147
Issue
1
Pages
87-96
ISSN
  • 1350-0872 (ISSN-L)
  • 1465-2080
OpenAlex
W2130890924
Cited by
226
References
1
Citations by year
2025: 4 · 2024: 6 · 2023: 6 · 2022: 7 · 2021: 14 · 2020: 5 · 2019: 8 · 2018: 15 · 2017: 7 · 2016: 11 · 2015: 12 · 2014: 17 · 2013: 15 · 2012: 11
FWCI
3.03
Type
journal article
Language
en
Open access
closed
Locations
  • Microbiology (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
  • European Commission
  • Institut National de la Recherche Agronomique
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Health Sciences › Medicine › Infectious Diseases › Clostridium difficile and Clostridium perfringens research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
Keywords
Clostridium difficile, GroEL, HSP60, heat shock proteins, cell adhesion, groESL operon, extracellular protein release, heat shock, cell contact
MeSH terms
Amino Acid Sequence, Animals, Bacterial Adhesion, Base Sequence, Chlorocebus aethiops, Enterocolitis, Pseudomembranous, Humans, Molecular Sequence Data, Operon, Polymorphism, Restriction Fragment Length, Vero Cells, Polymerase Chain Reaction, Microscopy, Immunoelectron, Clostridioides difficile, Sequence Analysis, DNA, Gene Dosage, Chaperonin 60

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