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October 1, 2003Journal of Biological ChemistryOpen Access

Complete Alanine Scanning of Intersubunit Interfaces in a Foot-and-Mouth Disease Virus Capsid Reveals Critical Contributions of Many Side Chains to Particle Stability and Viral Function

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Key result

Alanine scanning of 42 interfacial side chains in the foot-and-mouth disease virus capsid showed that most mutations drastically reduced virus yields and altered thermal inactivation rates.

Population

Foot-and-mouth disease virus capsid model

Comparison

Individual truncation to alanine of 42 amino… vs Parent virus

Design

Preclinical

Authors

RMRoberto MateoGilead Sciences (United States)ADA. Díaz DíazHospital Universitario Insular de Gran CanariaÉBÉric BaranowskiÉcole Nationale Vétérinaire de Toulouse

Discussion

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Overview

Pinpoints tolerant capsid sites for FMDV vaccine engineering; leaves open in vivo validation and translational utility.

Structured PICO

P
Population
Foot-and-mouth disease virus capsid model
I
Intervention
Individual truncation to alanine of 42 amino acid side chains at intersubunit interfaces
C
Comparator
Parent virus
O
Outcome
Virus yields, thermal inactivation rates, and capsid stability

Most residues at the interfaces between foot-and-mouth disease virus capsid subunits are critically important for viral function and stability, though a few are tolerant to mutation and could be targets for engineering thermostable vaccines.

Cite This Study

Mateo et al. (2003) studied Foot-and-mouth disease virus. Alanine scanning mutagenesis of 42 amino acid side chains vs. Parent virus was evaluated on Virus yields, thermal inactivation rates, and viability. Alanine scanning of 42 interfacial side chains in the foot-and-mouth disease virus capsid showed that most mutations drastically reduced virus yields and altered thermal inactivation rates.

synapsesocial.com/papers/6a6f57e3fe4101aa97dfc18bhttps://doi.org/10.1074/jbc.m304990200
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Systematic Replacement of Amino Acid Residues within an Arg-Gly-Asp-containing Loop of Foot-and-Mouth Disease Virus and Effect on Cell Recognition1996 · 129 citations
  2. 2Mutational Analysis of the Adeno-Associated Virus Type 2 (AAV2) Capsid Gene and Construction of AAV2 Vectors with Altered Tropism2000 · 396 citations
  3. 3Replication-competent foot-and-mouth disease virus RNAs lacking capsid coding sequences2000 · 26 citations