Abstract

The major virulence factor of Pasteurella multocida responsible for atrophic rhinitis, pneumonia-like respiratory disease, and dermonecrosis is a monomeric 1285 amino acid protein toxin (PMT, Pasteurella multocida toxin) produced primarily by capsular type D and some capsular type A strains. Recently, the molecular mechanism of PMT was defined as the specific deamidation of a crucial glutamine residue in the -subunit of heterotrimeric G proteins. As a consequence of PMT action, the G proteins are constitutively activated, which results in modulation of multiple downstream signaling pathways leading to pleiotropic cellular effects, including mitogenesis and proliferation, as well as the manipulation of cell differentiation and other cell fate decisions involved in adipogenesis, osteogenesis, and immunity. This chapter reviews what is currently known about the structure, molecular mechanism, and substrate specificity of PMT, as well as its interaction with and effects on mammalian cells and its role in pathogenesis.

Original languageEnglish (US)
Title of host publicationThe Comprehensive Sourcebook of Bacterial Protein Toxins
PublisherElsevier Inc.
Pages463-498
Number of pages36
ISBN (Electronic)9780128005897
ISBN (Print)9780128001882
DOIs
StatePublished - Jun 5 2015

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Atrophic Rhinitis
Pasteurella multocida
Heterotrimeric GTP-Binding Proteins
Adipogenesis
Pulmonary diseases
Virulence Factors
Substrate Specificity
Molecular Structure
Glutamine
GTP-Binding Proteins
Osteogenesis
Molecular structure
Cell Differentiation
Immunity
Pneumonia
Cells
Modulation
Amino Acids
Pasteurella multocida toxin
Substrates

Keywords

  • Atrophic rhinitis
  • Bone
  • Deamidation
  • G protein-coupled receptor (GPCR)
  • Gi
  • Gq
  • Heterotrimeric G protein
  • Osteoblast
  • Osteoclast
  • Pasteurellosis

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Wilson, B. A., Bergmann, S., Ho, M., & Orth, J. H. C. (2015). Pasteurella multocida toxin. In The Comprehensive Sourcebook of Bacterial Protein Toxins (pp. 463-498). Elsevier Inc.. https://doi.org/10.1016/B978-0-12-800188-2.00017-3

Pasteurella multocida toxin. / Wilson, Brenda Anne; Bergmann, Stefan; Ho, Mengfei; Orth, Joachim H.C.

The Comprehensive Sourcebook of Bacterial Protein Toxins. Elsevier Inc., 2015. p. 463-498.

Research output: Chapter in Book/Report/Conference proceedingChapter

Wilson, BA, Bergmann, S, Ho, M & Orth, JHC 2015, Pasteurella multocida toxin. in The Comprehensive Sourcebook of Bacterial Protein Toxins. Elsevier Inc., pp. 463-498. https://doi.org/10.1016/B978-0-12-800188-2.00017-3
Wilson BA, Bergmann S, Ho M, Orth JHC. Pasteurella multocida toxin. In The Comprehensive Sourcebook of Bacterial Protein Toxins. Elsevier Inc. 2015. p. 463-498 https://doi.org/10.1016/B978-0-12-800188-2.00017-3
Wilson, Brenda Anne ; Bergmann, Stefan ; Ho, Mengfei ; Orth, Joachim H.C. / Pasteurella multocida toxin. The Comprehensive Sourcebook of Bacterial Protein Toxins. Elsevier Inc., 2015. pp. 463-498
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