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Viruses 2016, 8(4), 109; doi:10.3390/v8040109

Constraints on the Genetic and Antigenic Variability of Measles Virus

Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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Author to whom correspondence should be addressed.
Academic Editor: Richard K. Plemper
Received: 18 February 2016 / Revised: 6 April 2016 / Accepted: 14 April 2016 / Published: 21 April 2016
(This article belongs to the Special Issue Recent Progress in Measles Virus Research)
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Abstract

Antigenic drift and genetic variation are significantly constrained in measles virus (MeV). Genetic stability of MeV is exceptionally high, both in the lab and in the field, and few regions of the genome allow for rapid genetic change. The regions of the genome that are more tolerant of mutations (i.e., the untranslated regions and certain domains within the N, C, V, P, and M proteins) indicate genetic plasticity or structural flexibility in the encoded proteins. Our analysis reveals that strong constraints in the envelope proteins (F and H) allow for a single serotype despite known antigenic differences among its 24 genotypes. This review describes some of the many variables that limit the evolutionary rate of MeV. The high genomic stability of MeV appears to be a shared property of the Paramyxovirinae, suggesting a common mechanism that biologically restricts the rate of mutation. View Full-Text
Keywords: measles; paramyxovirinae; antigenic drift; genotype; genomic stability; genetic variation; mutation rate; amino acid substitution; viral envelope proteins measles; paramyxovirinae; antigenic drift; genotype; genomic stability; genetic variation; mutation rate; amino acid substitution; viral envelope proteins
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Beaty, S.M.; Lee, B. Constraints on the Genetic and Antigenic Variability of Measles Virus. Viruses 2016, 8, 109.

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