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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
|
pubmed:dateCreated |
1995-4-27
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pubmed:abstractText |
PR2257 is a new replication-defective avian sarcoma virus which harbours in addition to the spliced version of the c-src gene also about 950 bp of no-coding cellular sequences located downstream from the c-src stop codon (Geryk et al., 1989). Comparison of the 950 bp region transduced by PR2257 with the chicken c-src cDNA (Dorai et al., 1991) and genomic sequences of the c-src 3' non-coding region from chicken and quail has shown that there are no additional introns. The c-src 3' non-coding region represents the largest c-src exon (No. 12) comprising about 2 kb. Absence of conserved open reading frames within this region in chicken and quail genomic DNAs excludes the possibility for coding a protein by these sequences. Also, the possibility was excluded that numerous endogenous virus-derived sequences identified in molecularly cloned PR2257 provirus played a role in the c-src transduction. After serial passaging of PR2257 virus in vivo a variant PR2257/16 was isolated. In PR2257/16, the size of the env gene was increased due to homologous recombination with a helper virus. In addition to mutations in the viral leader and the v-src coding region, a large deletion in transduced c-src 3' non-coding sequences was found in the PR2257/16 genome. The significance of genome modifications for selective advantage of this viral variant in vivo is discussed.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:status |
MEDLINE
|
pubmed:issn |
0015-5500
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
40
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pubmed:geneSymbol |
c-src
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
N
|
pubmed:pagination |
211-23
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7895852-Animals,
pubmed-meshheading:7895852-Avian Sarcoma Viruses,
pubmed-meshheading:7895852-Base Sequence,
pubmed-meshheading:7895852-Genes, Viral,
pubmed-meshheading:7895852-Genes, src,
pubmed-meshheading:7895852-Humans,
pubmed-meshheading:7895852-Molecular Sequence Data,
pubmed-meshheading:7895852-Transduction, Genetic
|
pubmed:year |
1994
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pubmed:articleTitle |
New case of c-src gene transduction: the generation of virus PR2257.
|
pubmed:affiliation |
Unité de Recherche Associée 1443 du Centre National de la Recherche Scientifique, Institut Curie, Orsay, France.
|
pubmed:publicationType |
Journal Article,
Review
|