CovidV2, Main, Exploration, bibRecord, 001B82

Comparison of the genome organization of toro- and coronaviruses: Evidence for two nonhomologous RNA recombination events during berne virus evolution

Identifieur interne : 001B82 ( Main/Exploration ); précédent : 001B81; suivant : 001B83

Comparison of the genome organization of toro- and coronaviruses: Evidence for two nonhomologous RNA recombination events during berne virus evolution

Auteurs : Eric J. Snijder [Pays-Bas] ; Johan A. Den Boon [Pays-Bas] ; Marian C. Horzinek [Pays-Bas] ; Willy J. M. Spaan [Pays-Bas]

Source :

Virology [ 0042-6822 ] ; 1991.

RBID : ISTEX:A09084E1E77F98FAFE0BDB6C6E247F0E36F16399

English descriptors

Teeft :
- Academic press, Accession number, Acid residues, Amino, Amino acid sequence, Amino acids, Berne virus, Codon, Common ancestry, Coronaviral, Coronaviruses, Embl nucleotide sequence database, Genome, Genome organization, Horzinek, Independent nonhomologous, Independent recombination events, Influenza virus, Initiation codon, Methionine residue, Nonhomologous, Nucleic acids, Nucleotide, Nucleotide sequence analysis, Nucleotide sequence data, Orfl, Orfla product, Polla, Polymerase, Polymerase genes, Polymerase proteins, Protein gene, Recombination, Recombination events, Ribosomal frameshifting site, Sequence analysis, Sequence similarity, Short communications, Similar size, Spaan, State university, Termination codon, Torovirus, Viral, Weiss.

Abstract

Abstract: Recently, toroviruses and coronaviruses have been found to be ancestrally related by divergence of their polymerase and envelope proteins from common ancestors. In addition, their genome organization and expression strategy, which involves the synthesis of a 3′-coterminal nested set of mRNAs, are comparable. Nucleotide sequence analysis of the genome of the torovirus prototype, Berne virus (BEV), has now revealed the results of two independent nonhomologous RNA recombinations during torovirus evolution. Berne virus open reading frame (ORF) 4 encodes a protein with significant sequence similarity (30–35% identical residues) to a part of the hemagglutinin esterase proteins of corona-viruses and influenza virus C. The sequence of the C-terminal part of the predicted BEV polymerase ORF1a product contains 31–36% identical amino acids when compared with the sequence of a nonstructural 3032K corona-virus protein. The cluster of coronaviruses which contains this nonstructural gene expresses it not as a part of their polymerase, but by synthesizing an additional subgenomic mRNA.

Url:

https://api.istex.fr/ark:/67375/6H6-704VLH2B-4/fulltext.pdf

DOI: 10.1016/0042-6822(91)90056-H

Affiliations:

Pays-Bas

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Abstract: Recently, toroviruses and coronaviruses have been found to be ancestrally related by divergence of their polymerase and envelope proteins from common ancestors. In addition, their genome organization and expression strategy, which involves the synthesis of a 3′-coterminal nested set of mRNAs, are comparable. Nucleotide sequence analysis of the genome of the torovirus prototype, Berne virus (BEV), has now revealed the results of two independent nonhomologous RNA recombinations during torovirus evolution. Berne virus open reading frame (ORF) 4 encodes a protein with significant sequence similarity (30–35% identical residues) to a part of the hemagglutinin esterase proteins of corona-viruses and influenza virus C. The sequence of the C-terminal part of the predicted BEV polymerase ORF1a product contains 31–36% identical amino acids when compared with the sequence of a nonstructural 3032K corona-virus protein. The cluster of coronaviruses which contains this nonstructural gene expresses it not as a part of their polymerase, but by synthesizing an additional subgenomic mRNA.</div>
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Comparison of the genome organization of toro- and coronaviruses: Evidence for two nonhomologous RNA recombination events during berne virus evolution

Comparison of the genome organization of toro- and coronaviruses: Evidence for two nonhomologous RNA recombination events during berne virus evolution

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri