Cited by 82Viral Infections and Immunology ResearchVirology and Viral DiseasesEvolution and Genetic Dynamics

The Temperature Sensitivity of the Sabin Type 3 Vaccine Strain of Poliovirus: Molecular and Structural Effects of a Mutation in the Capsid Protein VP3

Minor, P. D., Dunn, G., Evans, D. M. A., Magrath, D. I., John, A., Howlett, J., Phillips, A., Westrop, G. +3 more·1989·Journal of General Virology

Abstract

The growth of the Sabin strain of type 3 poliovirus is reduced at high temperatures compared to that of its virulent precursor strain Leon. Recombinant viruses have been generated from infectious cDNA clones and demonstrate that the temperature-sensitive (ts) phenotype is mainly attributable to a difference in residue 91 of the virion protein VP3. Examination of non-ts mutants derived in vitro or in vivo reveals the existence of second site mutations some of which are clearly able to suppress the ts phenotype. The location of residue 91 of VP3, and of a number of candidate suppressor mutations, in the atomic structure of the virion suggests that the ts phenotype may result in destabilization of the particle and that the suppressors may function by stabilizing specific interfaces. It is not yet clear whether the ts phenotype is expressed at the level of the particle or in the form of defects in assembly or uncoating of the virion, or all three.

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Crossref · 10.1099/0022-1317-70-5-1117

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Authors
Minor, P. D., Dunn, G., Evans, D. M. A., Magrath, D. I., John, A., Howlett, J., Phillips, A., Westrop, G., Wareham, K., Almond, J. W., & Hogle, J. M.
Affiliations
  • National Institute for Biological Standards and Control (GB)
  • University of Reading (GB)
  • Scripps Research Institute (US)
Venue
Journal of General Virology
Published
1989-05-01
Volume
70
Issue
5
Pages
1117-1123
ISSN
  • 0022-1317 (ISSN-L)
  • 1465-2099
OpenAlex
W2121253082
Cited by
82
References
9
Citations by year
2024: 1 · 2023: 1 · 2022: 2 · 2020: 1 · 2017: 1 · 2016: 3 · 2015: 2 · 2014: 6 · 2012: 2
FWCI
8.50
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of General Virology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Viral Infections and Immunology Research
  • Health Sciences › Medicine › Epidemiology › Virology and Viral Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
Keywords
temperature-sensitive phenotype, VP3 capsid protein, suppressor mutations, second-site mutations, virion stability, viral assembly, viral uncoating, infectious clone
MeSH terms
Amino Acid Sequence, Capsid, Genes, Viral, Mutation, Phenotype, Viral Plaque Assay, Poliovirus Vaccine, Oral, Recombination, Genetic, RNA, Viral, Suppression, Genetic, Temperature, Poliovirus

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