Evidence map›Paper›PMID 16873273›Full record

ArticleJournal of virology2006

Compensatory substitutions restore normal core assembly in simian immunodeficiency virus isolates with Gag epitope cytotoxic T-lymphocyte escape mutations.

Wendy W Yeh, Evan M Cale, Pimkwan Jaru-Ampornpan, Carol I Lord, Fred W Peyerl, Norman L Letvin

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 33 citations in OpenAlex.

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  9. Dynamics of haplotype frequency change in a CD8+TL epitope of simian immunodeficiency virus.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2010
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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 1 country.

Wendy W YehDivision of Viral Pathogenesis, Beth Israel Deaconess Medical Center, Research East Room 113, 330 Brookline Ave., Boston, MA 02215, USA.
Evan M Cale
Pimkwan Jaru-Ampornpan
Carol I Lord
Fred W Peyerl
Norman L Letvin
Beth Israel Deaconess Medical Center · USHarvard University · US

Funding

Multidisciplinary HIV Training ProgramT32AI007387 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI Daniel R. Kuritzkes · 1990 to 2026
$8.8M
IMMUNOREGULATION IN AIDSR01AI020729 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI LETVIN, NORMAN L · 1985 to 2008
$3.1M
IMMUNOREGULATION IN AIDSR37AI020729 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI LETVIN, NORMAN L · 1993 to 2002
$1.6M
Viral Constraints on SIV Escape from Cytotoxic T LymphocytesK08AI069995 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI YEH, WENDY WEN-LI · 2006 to 2010
$585k
NIAID NIH HHS AI-020729NIAID NIH HHS K08 AI069995NIAID NIH HHS K08-AI069995NIAID NIH HHS R01 AI020729NIAID NIH HHS R37 AI020729NIAID NIH HHS T32 AI007387NIAID NIH HHS T32-AI007387
6 · The paper itself

Abstract

The evolution of human immunodeficiency virus type 1 (HIV-1) and simian immunodeficiency virus (SIV) as they replicate in infected individuals reflects a balance between the pressure on the virus to mutate away from recognition by dominant epitope-specific cytotoxic T lymphocytes (CTL) and the structural constraints on the virus' ability to mutate. To gain a further understanding of the strategies employed by these viruses to maintain replication competency in the face of the intense selection pressure exerted by CTL, we have examined the replication fitness and morphological ramifications of a dominant epitope mutation and associated flanking amino acid substitutions on the capsid protein (CA) of SIV/simian-human immunodeficiency virus (SHIV). We show that a residue 2 mutation in the immunodominant p11C, C-M epitope (T47I) of SIV/SHIV not only decreased CA protein expression and viral replication, but it also blocked CA assembly in vitro and virion core condensation in vivo. However, these defects were restored by the introduction of upstream I26V and/or downstream I71V substitutions in CA. These findings demonstrate how flanking compensatory amino acid substitutions can facilitate viral escape from a dominant epitope-specific CTL response through the effects of these associated mutations on the structural integrity of SIV/SHIV.

Indexed as

Amino Acid SequenceAmino Acid SubstitutionCapsidCapsid ProteinsEpitopes, T-LymphocyteEvolution, MolecularGene Products, gagHumansMolecular Sequence DataPoint MutationSimian Immunodeficiency VirusT-Lymphocytes, CytotoxicVirus AssemblyVirus ReplicationCapsid ProteinsEpitopes, T-LymphocyteGene Products, gag

Identifiers

PMID16873273
PMCPMC1563819
OpenAlexW2088078450

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.