Evidence map›Paper›PMID 19896990›Full record

ArticleVirus research2010

Conflicting selection pressures target the NS3 protein in hepatitis C virus genotypes 1a and 1b.

Stephanie Jiménez Irausquin, Austin L Hughes

Abstract read
In one paragraph

Article in Virus research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 35% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Conflicting selection pressures on T-cell epitopes in HIV-1 subtype B.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2011
    Article
  5. 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 1 institution in 1 country.

Stephanie Jiménez IrausquinDepartment of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA.
Austin L Hughes
University of South Carolina · US

Funding

POLYMORPHISM &EVOLUTION OF MHC GENESR01GM043940 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI HUGHES, AUSTIN L. · 1990 to 2010
$1.5M
NIGMS NIH HHS GM43940NIGMS NIH HHS R01 GM043940
6 · The paper itself

Abstract

Analysis of complete polyprotein-encoding sequences of the two most prevalent genotypes of hepatitis C virus (HCV-1a and HCV-1b) revealed evidence of abundant, slightly deleterious nonsynonymous variants subject to ongoing purifying selection. In the case of both HCV-1a and HCV-1b, the NS3 protein demonstrated a high incidence of forward-and-backward or parallel nonsynonymous changes in CTL epitopes as measured by the phylogenetic consistency index. These results imply that certain nonsynonymous mutations have occurred frequently throughout the HCV-1a and HCV-1b phylogenies in the codons encoding the epitopes in NS3. This pattern is best explained by the frequent re-occurrence of the same set of escape mutations in CTL epitopes of NS3, which are selectively favored within hosts presenting the class I major histocompatability complex molecule, but subject to purifying selection in the population at large. This pattern was more pronounced in HCV-1b than in HCV-1a, suggesting that there may be differences between the two genotypes with respect to NS3's interaction with host immune recognition.

Indexed as

Adaptation, BiologicalSelection, GeneticAmino Acid SubstitutionDEAD-box RNA HelicasesEpitopes, T-LymphocyteEvolution, MolecularGenotypeHepacivirusHumansMutation, MissenseNucleoside-TriphosphataseSequence Analysis, DNASerine EndopeptidasesViral Nonstructural ProteinsViral ProteasesDEAD-box RNA HelicasesEpitopes, T-LymphocyteNS3 protein, hepatitis C virusNucleoside-TriphosphataseSerine EndopeptidasesViral Nonstructural ProteinsViral Proteases

Identifiers

PMID19896990
PMCPMC3529174
OpenAlexW2055428329

What OpenQuestion holds

Textmetadata
LicenceTDM
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.