Evidence map›Paper›PMID 34282021›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Tradeoffs for a viral mutant with enhanced replication speed.

Matthew R Lanahan, Robert W Maples, Julie K Pfeiffer

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Open questions in enterovirus uncoating.Journal of virology · 2026
    Review
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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

3 authors.

Matthew R LanahanDepartment of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9048.ORCID 0000-0002-6061-9513
Robert W MaplesDepartment of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9048.ORCID 0000-0002-5815-1210
Julie K PfeifferDepartment of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9048 julie.pfeiffer@utsouthwestern.edu.ORCID 0000-0003-2973-4895

Funding

The influence of host barriers on viral quasispecies diversity and pathogenesisR01AI074668 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI PFEIFFER, JULIE K · 2008 to 2022
$6.0M
Circadian control of enteric virus infectionR01AI158351 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI PFEIFFER, JULIE K · 2021 to 2025
$2.9M
Enteric virus-microbiota interactionsR37AI074668 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI Julie K Pfeiffer · 2023 to 2026
$2.5M
Mechanisms of Disease & Translational ScienceT32GM109776 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI YIN, HELEN L · 2014 to 2018
$573k
NIAID NIH HHS R01 AI074668NIAID NIH HHS R01 AI158351NIAID NIH HHS R37 AI074668NIGMS NIH HHS T32 GM109776
6 · The paper itself

Abstract

RNA viruses exist as genetically heterogeneous populations due to high mutation rates, and many of these mutations reduce fitness and/or replication speed. However, it is unknown whether mutations can increase replication speed of a virus already well adapted to replication in cultured cells. By sequentially passaging coxsackievirus B3 in cultured cells and collecting the very earliest progeny, we selected for increased replication speed. We found that a single mutation in a viral capsid protein, VP1-F106L, was sufficient for the fast-replication phenotype. Characterization of this mutant revealed quicker genome release during entry compared to wild-type virus, highlighting a previously unappreciated infection barrier. However, this mutation also reduced capsid stability in vitro and reduced replication and pathogenesis in mice. These results reveal a tradeoff between overall replication speed and fitness. Importantly, this approach-selecting for the earliest viral progeny-could be applied to a variety of viral systems and has the potential to reveal unanticipated inefficiencies in viral replication cycles.

Indexed as

AnimalsCloning, MolecularEnterovirus B, HumanEnterovirus InfectionsHeLa CellsHumansMiceMice, KnockoutMutationReceptor, Interferon alpha-betaVirus ReplicationReceptor, Interferon alpha-betacapsidcoxsackievirusfitnessreplication speed

Identifiers

PMID34282021
PMCPMC8325337

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.