Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1995-4-27
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0015-5500
pubmed:author
pubmed:issnType
Print
pubmed:volume
40
pubmed:geneSymbol
c-src
pubmed:owner
NLM
pubmed:authorsComplete
N
pubmed:pagination
211-23
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
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