Evidence map›Paper›PMID 17324266›Full record

ArticleVirology journal2007

Mechanisms regulating expression of the HPV 31 L1 and L2 capsid proteins and pseudovirion entry.

Patrick L Hindmarsh, Laimonis A Laimins

Open access · goldAbstract read
In one paragraph

Article in Virology journal, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

30 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. Papillomaviruses and Endocytic Trafficking.International journal of molecular sciences · 2018
    Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Host-cell factors involved in papillomavirus entry.Medical microbiology and immunology · 2012
    Review
  12. Principles of polyoma- and papillomavirus uncoating.Medical microbiology and immunology · 2012
    Review
  13. Article
  14. Recent developments in the interactions between caveolin and pathogens.Advances in experimental medicine and biology · 2012
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  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

2 authors at 2 institutions in 1 country.

Patrick L HindmarshDepartment of Microbiology-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA. phindm@lsuhsc.edu
Laimonis A Laimins
Louisiana State University · USNorthwestern University · US

Funding

REGULATION OF HUMAN PAPILLOMAVIRUS GENE EXPRESSIONR01CA059655 · NCI · UNIVERSITY OF CHICAGO · PI LAIMINS, LAIMONIS A. · 1993 to 2023
$7.4M
Mechanism of Human Papillomavirus InfectivityF32CA097798 · NCI · NORTHWESTERN UNIVERSITY · PI HINDMARSH, PATRICK · 2003 to 2005
$104k
NCI NIH HHS CA 59655NCI NIH HHS F32 CA097798NCI NIH HHS F32 CA097798-01A1NCI NIH HHS R01 CA059655
6 · The paper itself

Abstract

Human papillomaviruses (HPV) infect stratified epithelia and restrict expression of late capsid genes to highly differentiated cells. In order to begin to understand the processes regulating HPV 31 infection we examined the synthesis of the HPV 31 capsid proteins, L1 and L2, using heterologous expression systems. Similar to studies in HPV 16, expression of wild type HPV 31 L1 and L2 from heterologous promoters resulted in very low levels of synthesis. In contrast, modification of the codons in the capsid genes to ones more commonly used in cellular genes resulted in high-level synthesis. Through the use of chimeric proteins that fused fragments of wild type L1 to Green Fluorescent Protein (GFP) coding sequences, a short region was identified that was sufficient to inhibit high level synthesis and similar elements were detected in L2. One element was localized to the 3' end of the L1 gene while a series of elements were localized at the 3' end of the L2 coding sequences. These observations are most consistent with negative RNA regulatory elements controlling the levels of L1 and L2 synthesis that are distinct from those identified in HPV 16. Expression vectors for the codon modified HPV 31 capsid proteins were then transfected together with GFP reporter plasmids to generate HPV 31 pseudoviruses. Infection of cells with HPV 31 pseudoviruses in the presence of the inhibitors, chlorpromazine, nystatin or methyl-beta-cyclodextrin, demonstrated that HPV 31, like HPV 16, enters human and monkey cells through a clathrin-mediated pathway rather than through caveolae as previously reported. This suggests that high-risk HPV types may enter cells through common mechanisms.

Indexed as

Gene Expression Regulation, ViralVirus InternalizationAlphapapillomavirusAnimalsbeta-CyclodextrinsCapsid ProteinsCell LineChlorocebus aethiopsChlorpromazineClathrinCOS CellsGreen Fluorescent ProteinsHumansNystatinOncogene Proteins, ViralRecombinant Fusion Proteinsbeta-CyclodextrinsCapsid ProteinsChlorpromazineClathrinGreen Fluorescent Proteinsmethyl-beta-cyclodextrinNystatinOncogene Proteins, ViralRecombinant Fusion Proteins

Identifiers

PMID17324266
PMCPMC1808446
OpenAlexW1587098194

What OpenQuestion holds

Textmetadata
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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.