Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1999-10-20
pubmed:databankReference
pubmed:abstractText
An antigenic 30 K virion protein of Heliothis armigera entomopoxvirus (HaEPV) has been identified as a homologue of the chordopoxvirus (ChPV) VP8 major virion core protein. Like its homologue in vaccinia virus, the mature HaEPV 30 K protein is derived by post-translational cleavage of a precursor at a conserved AGA motif. The HaEPV 30 K protein is the first EPV structural virion protein to be described, and elucidation of its characteristics provides evidence for the assumption that morphological similarities observed between virions of the sub-families Entomopoxvirinae and Chordopoxvirinae by microscopy reflect corresponding similarities at a molecular level. Sequencing of the HaEPV genome adjacent to the 30K locus identified an ORF encoding a homologue of the regulatory sub-unit of the ChPV poly(A) polymerase enzyme; the conceptual product of this ORF showed 25-31% aa sequence identity to those of various ChPVs. The presence of this gene in the HaEPV genome supports the hypothesis that there is a substantial correspondence in basic metabolic processes of members of the two poxvirus sub-families, despite their utilization of divergent host groups. In contrast, the relative positions of the 30 K and poly(A) polymerase loci in the HaEPV genome provide further evidence of substantial genomic re-arrangement subsequent to divergence of these viral taxa.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0920-8569
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
23-31
pubmed:dateRevised
2004-8-18
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Virions of Heliothis armigera entomopoxvirus contain a homologue of the vaccinia VP8 major core protein.
pubmed:affiliation
Department of Plant Pathology, University of California, Davis 95616, USA. davidd@ento.csiro.au
pubmed:publicationType
Journal Article