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Comparison of a dengue-2 virus and its candidate vaccine derivative: Sequence relationships with the flaviviruses and other viruses

Identifieur interne : 002541 ( Istex/Corpus ); précédent : 002540; suivant : 002542

Comparison of a dengue-2 virus and its candidate vaccine derivative: Sequence relationships with the flaviviruses and other viruses

Auteurs : J. Blok ; S. M. Mcwilliam ; H. C. Butler ; A. J. Gibbs ; G. Weiller ; B. L. Herring ; A. C. Hemsley ; J. G. Aaskov ; S. Yoksan ; N. Bhamarapravati

Source :

RBID : ISTEX:4D6F87B101DF40A6F8C49821E40BEE30F0577DE3

English descriptors

Abstract

Abstract: A comparison of the sequence of the dengue-2 16681 virus with that of the candidate vaccine strain (16681-PDK53) derived from it identified 53 of the 10,723 nucleotides which differed between the strains. Nucleotide changes occurred in genes coding for all virion and nonvirion proteins, and in the 5′ and 3′ untranslated regions. Twenty-seven of the nucleotide changes resulted in amino acid alterations. The greatest amino acid sequence differences in the virion proteins occurred in prM (2.20%; 291 amino acids) followed by the M protein (1.33%; 175 amino acids), the C protein (0.88%; 1114 amino acid), and the E protein (0.61%; 3495 amino acids). Differences in the amino acid sequence of nonvirion proteins ranged from 1.51% (6398 amino acids) in NS4 to 0.33% (3900 amino acids) in NS5. The encoded protein sequences of 16681-PDK53 were also compared with the published sequences of other flaviviruses to obtain a detailed classification of 17 flaviviruses using the neighbor-joining tree method. The analyses of the sequence data produced dendrograms which supported the traditional groupings based on serological evidence, and they suggested that the flaviviruses have evolved by divergent mutational change and there was no evidence of genetic recombination between members of the group. Comparisons of the sequences of the flavivirus polymerase and helicase-like proteins (NS5 and NS3, respectively) with those from other viruses yielded a classification of the flaviviruses indicating that the primary division of the flaviviruses was between those transmitted by mosquitoes and those transmitted by ticks.

Url:
DOI: 10.1016/0042-6822(92)90460-7

Links to Exploration step

ISTEX:4D6F87B101DF40A6F8C49821E40BEE30F0577DE3

Le document en format XML

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<div type="abstract" xml:lang="en">Abstract: A comparison of the sequence of the dengue-2 16681 virus with that of the candidate vaccine strain (16681-PDK53) derived from it identified 53 of the 10,723 nucleotides which differed between the strains. Nucleotide changes occurred in genes coding for all virion and nonvirion proteins, and in the 5′ and 3′ untranslated regions. Twenty-seven of the nucleotide changes resulted in amino acid alterations. The greatest amino acid sequence differences in the virion proteins occurred in prM (2.20%; 291 amino acids) followed by the M protein (1.33%; 175 amino acids), the C protein (0.88%; 1114 amino acid), and the E protein (0.61%; 3495 amino acids). Differences in the amino acid sequence of nonvirion proteins ranged from 1.51% (6398 amino acids) in NS4 to 0.33% (3900 amino acids) in NS5. The encoded protein sequences of 16681-PDK53 were also compared with the published sequences of other flaviviruses to obtain a detailed classification of 17 flaviviruses using the neighbor-joining tree method. The analyses of the sequence data produced dendrograms which supported the traditional groupings based on serological evidence, and they suggested that the flaviviruses have evolved by divergent mutational change and there was no evidence of genetic recombination between members of the group. Comparisons of the sequences of the flavivirus polymerase and helicase-like proteins (NS5 and NS3, respectively) with those from other viruses yielded a classification of the flaviviruses indicating that the primary division of the flaviviruses was between those transmitted by mosquitoes and those transmitted by ticks.</div>
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<namePart type="family">Aaskov</namePart>
<affiliation>Queensland University of Technology, George St., Brisbane, Queensland 4000, Australia</affiliation>
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<name type="personal">
<namePart type="given">S.</namePart>
<namePart type="family">Yoksan</namePart>
<affiliation>Center for Vaccine Development, Mahidol University, Nakhon Pathom, Thailand</affiliation>
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<name type="personal">
<namePart type="given">N.</namePart>
<namePart type="family">Bhamarapravati</namePart>
<affiliation>Center for Vaccine Development, Mahidol University, Nakhon Pathom, Thailand</affiliation>
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<abstract lang="en">Abstract: A comparison of the sequence of the dengue-2 16681 virus with that of the candidate vaccine strain (16681-PDK53) derived from it identified 53 of the 10,723 nucleotides which differed between the strains. Nucleotide changes occurred in genes coding for all virion and nonvirion proteins, and in the 5′ and 3′ untranslated regions. Twenty-seven of the nucleotide changes resulted in amino acid alterations. The greatest amino acid sequence differences in the virion proteins occurred in prM (2.20%; 291 amino acids) followed by the M protein (1.33%; 175 amino acids), the C protein (0.88%; 1114 amino acid), and the E protein (0.61%; 3495 amino acids). Differences in the amino acid sequence of nonvirion proteins ranged from 1.51% (6398 amino acids) in NS4 to 0.33% (3900 amino acids) in NS5. The encoded protein sequences of 16681-PDK53 were also compared with the published sequences of other flaviviruses to obtain a detailed classification of 17 flaviviruses using the neighbor-joining tree method. The analyses of the sequence data produced dendrograms which supported the traditional groupings based on serological evidence, and they suggested that the flaviviruses have evolved by divergent mutational change and there was no evidence of genetic recombination between members of the group. Comparisons of the sequences of the flavivirus polymerase and helicase-like proteins (NS5 and NS3, respectively) with those from other viruses yielded a classification of the flaviviruses indicating that the primary division of the flaviviruses was between those transmitted by mosquitoes and those transmitted by ticks.</abstract>
<note>Sequence data from this article have been deposited with the EMBL/GenBank Data Libraries under Accession Nos. M85258 and M85259</note>
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<identifier type="ISSN">0042-6822</identifier>
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<date>1992</date>
<detail type="volume">
<number>187</number>
<caption>vol.</caption>
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<number>2</number>
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<identifier type="DOI">10.1016/0042-6822(92)90460-7</identifier>
<identifier type="PII">0042-6822(92)90460-7</identifier>
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