Evidence map›Paper›PMID 22973044›Full record

ArticleJournal of virology2012

An interaction between human papillomavirus 16 E2 and TopBP1 is required for optimum viral DNA replication and episomal genome establishment.

Mary M Donaldson, Lorna J Mackintosh, Jason M Bodily, Edward S Dornan, Laimonis A Laimins, Iain M Morgan

Abstract read
In one paragraph

Article in Journal of virology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
–field-weighted citation impact
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

42 citing papers in PubMed.

  1. Journal of virology · 2026
    Article
  2. Article
  3. bioRxiv : the preprint server for biology · 2025
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  16. Review
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  18. Human papillomavirus E7 oncoprotein targets RNF168 to hijack the host DNA damage response.Proceedings of the National Academy of Sciences of the United States of America · 2019
    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

6 authors.

Mary M DonaldsonMedical Research Council-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom.
Lorna J Mackintosh
Jason M Bodily
Edward S Dornan
Laimonis A Laimins
Iain M Morgan

Funding

Renewal: HPV and the DNA Damage ResponseR01CA142861 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Laimonis A. LAIMINS · 2010 to 2026
$5.2M
COBRE Center for Molecular and Tumor VirologyP30GM110703 · NIGMS · LOUISIANA STATE UNIV HSC SHREVEPORT · PI SAPP, MARTIN · 2014 to 2018
$4.8M
Genetic analysis of Human Papillomavirus E2 proteinF32CA123814 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI BODILY, JASON M · 2006 to 2007
$95k
Cancer Research UKMedical Research CouncilNCI NIH HHS F32 CA123814NCI NIH HHS R01 CA142861NCI NIH HHS R01CA142861NIGMS NIH HHS P30 GM110703
6 · The paper itself

Abstract

In human papillomavirus DNA replication, the viral protein E2 forms homodimers and binds to 12-bp palindromic DNA sequences surrounding the origin of DNA replication. Via a protein-protein interaction, it then recruits the viral helicase E1 to an A/T-rich origin of replication, whereupon a dihexamer forms, resulting in DNA replication initiation. In order to carry out DNA replication, the viral proteins must interact with host factors that are currently not all known. An attractive cellular candidate for regulating viral replication is TopBP1, a known interactor of the E2 protein. In mammalian DNA replication, TopBP1 loads DNA polymerases onto the replicative helicase after the G(1)-to-S transition, and this process is tightly cell cycle controlled. The direct interaction between E2 and TopBP1 would allow E2 to bypass this cell cycle control, resulting in DNA replication more than once per cell cycle, which is a requirement for the viral life cycle. We report here the generation of an HPV16 E2 mutant compromised in TopBP1 interaction in vivo and demonstrate that this mutant retains transcriptional activation and repression functions but has suboptimal DNA replication potential. Introduction of this mutant into a viral life cycle model results in the failure to establish viral episomes. The results present a potential new antiviral target, the E2-TopBP1 interaction, and increase our understanding of the viral life cycle, suggesting that the E2-TopBP1 interaction is essential.

Indexed as

Blotting, SouthernBlotting, WesternCarrier ProteinsDensitometryDimerizationDNA-Binding ProteinsDNA PrimersDNA ReplicationHEK293 CellsHuman papillomavirus 16HumansImmunoprecipitationMutagenesis, Site-DirectedNuclear ProteinsOncogene Proteins, ViralPlasmidsCarrier ProteinsDNA-Binding ProteinsDNA PrimersE2 protein, Human papillomavirus type 16Nuclear ProteinsOncogene Proteins, ViralTOPBP1 protein, human

Identifiers

PMID22973044
PMCPMC3497701

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.