Evidence map›Paper›PMID 21307195›Full record

ArticleJournal of virology2011

Immune-induced evolutionary selection focused on a single reading frame in overlapping hepatitis B virus proteins.

Yaakov Maman, Antoine Blancher, Jennifer Benichou, Adi Yablonka, Sol Efroni, Yoram Louzoun

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 36 citations in OpenAlex.

  1. CancerFrontiers in immunology · 2021
    Article
  2. Article
  3. Article
  4. CD8Journal of virology · 2018
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Viral proteome size and CD8+ T cell epitope density are correlated: the effect of complexity on selection.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2013
    Article
  13. Article
  14. Article
  15. Optimal viral immune surveillance evasion strategies.Theoretical population biology · 2011
    Article
  16. Review
  17. 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 at 2 institutions in 2 countries.

Yaakov MamanDepartment of Mathematics and Gonda Brain Research Center, Bar-Ilan University, Ramat Gan 52900, Israel.
Antoine Blancher
Jennifer Benichou
Adi Yablonka
Sol Efroni
Yoram Louzoun
Bar-Ilan University · ILCentre Hospitalier Universitaire de Toulouse · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Viruses employ various means to evade immune detection. Reduction of CD8(+) T cell epitopes is one of the common strategies used for this purpose. Hepatitis B virus (HBV), a member of the Hepadnaviridae family, has four open reading frames, with about 50% overlap between the genes they encode. We computed the CD8(+) T cell epitope density within HBV proteins and the mutations within the epitopes. Our results suggest that HBV accumulates escape mutations that reduce the number of epitopes. These mutations are not equally distributed among genes and reading frames. While the highly expressed core and X proteins are selected to have low epitope density, polymerase, which is expressed at low levels, does not undergo the same selection. In overlapping regions, mutations in one protein-coding sequence also affect the other protein-coding sequence. We show that mutations lead to the removal of epitopes in X and surface proteins even at the expense of the addition of epitopes in polymerase. The total escape mutation rate for overlapping regions is lower than that for nonoverlapping regions. The lower epitope replacement rate for overlapping regions slows the evolutionary escape rate of these regions but leads to the accumulation of mutations more robust in the transfer between hosts, such as mutations preventing proteasomal cleavage into epitopes.

Indexed as

Evolution, MolecularSelection, GeneticCD8-Positive T-LymphocytesDNA-Directed DNA PolymeraseEpitopesHepatitis B virusMutationOpen Reading FramesTrans-ActivatorsViral ProteinsViral Regulatory and Accessory ProteinsDNA-Directed DNA PolymeraseEpitopeshepatitis B virus X proteinTrans-ActivatorsViral ProteinsViral Regulatory and Accessory Proteins

Identifiers

PMID21307195
PMCPMC3126273
OpenAlexW2117878567

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.