Evidence map›Paper›PMID 7494305›Full record

ArticleJournal of virology1995

Genetic and structural analysis of a virulence determinant in polyomavirus VP1.

P H Bauer, R T Bronson, S C Fung, R Freund, T Stehle, S C Harrison, T L Benjamin

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of virology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
1.3field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

46 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Intra-patient viral evolution in polyomavirus-related diseases.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Review
  7. The phylogenomics of evolving virus virulence.Nature reviews. Genetics · 2018
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. A cornucopia of human polyomaviruses.Nature reviews. Microbiology · 2013
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

P H BauerDepartment of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA.
R T Bronson
S C Fung
R Freund
T Stehle
S C Harrison
T L Benjamin
Harvard University · US

Funding

VIRAL ONCOPROTEIN PERTURBATION OF RB/E2F PATHWAYP01CA050661 · NCI · DANA-FARBER CANCER INSTITUTE · PI HOWLEY, PETER M · 1989 to 2013
$35.8M
STRUCTURE AND ASSEMBLY OF VIRUSES AND OF COATED VESICLESR01CA013202 · NCI · HARVARD UNIVERSITY · PI HARRISON, STEPHEN COPLAN · 1985 to 2024
$4.9M
Structure and Assembly of VirusesR37CA013202 · NCI · CHILDREN'S HOSPITAL BOSTON · PI HARRISON, STEPHEN COPLAN · 2003 to 2012
$3.7M
NATURAL AND UNNATURAL ROLES OF THE POLYOMA HR-T GENER35CA044343 · NCI · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI BENJAMIN, THOMAS L · 1987 to 2000
$1.5M
NCI NIH HHS CA13202NCI NIH HHS P01-CA50661NCI NIH HHS R35-CA44343
6 · The paper itself

Abstract

The LID strain of polyomavirus differs from other laboratory strains in causing a rapidly lethal infection of newborn C3H/Bi mice. This virulent behavior of LID was attenuated by dilution, yet at sublethal doses LID was able to induce tumors at a high frequency, like its parent virus PTA. By constructing and assaying LID-PTA recombinant viruses and by DNA sequencing, the determinant of virulence in LID was mapped to the major viral capsid protein, VP1. The VP1s of LID and PTA differed at two positions: at 185, LID has phenylalanine and PTA has tyrosine, and at 296, LID has alanine and PTA has valine. Results obtained with viruses constructed by site-directed mutagenesis showed that alanine at position 296 is sufficient to confer a fully virulent phenotype regardless of which amino acid is at position 185. However, with valine at position 296, an effect of phenylalanine at position 185 is apparent, as this virus possesses an intermediate level of virulence. A crystal structure of polyomavirus complexed with 3'-sialyl lactose previously indicated van der Waals contacts between the side chain of valine 296 and the sialic acid ring (T. Stehle, Y. Yan, T. L. Benjamin, and S. C. Harrison, Nature [London] 369:160-163, 1994). When this interaction was modeled with alanine, these contacts were greatly reduced. Direct confirmation that the substitutions in VP1 affected receptor binding was obtained by studying virus hemagglutination behavior. The ensemble of results are discussed in terms of the idea that a lower affinity of the virus for its receptor can result in more rapid spread and increased pathogenicity.

Indexed as

AnimalsAnimals, NewbornCapsidCapsid ProteinsCrystallography, X-RayGenes, ViralGenotypeMiceMice, Inbred C3HMolecular Sequence DataMutagenesis, Site-DirectedOrgan SpecificityPolyomavirusPolyomavirus InfectionsReceptors, VirusSpecies SpecificityCapsid ProteinsReceptors, Virus

Identifiers

PMID7494305
PMCPMC189737
OpenAlexW1492428195

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.