Source:http://linkedlifedata.com/resource/pubmed/id/16186799
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
2006-2-3
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pubmed:abstractText |
The v-rel oncogene is the most efficient transforming member of the Rel/NF-kappaB family of transcription factors. v-Rel induces avian and mammalian lymphoid cell tumors and transforms chicken embryo fibroblasts in culture by the aberrant regulation of genes under the control of Rel/NF-kappaB proteins. Here we report that the expression of SH3BGRL, a member of the SH3BGR (SH3 domain-binding glutamic acid-rich) family of proteins, is downregulated in v-Rel-expressing fibroblasts, lymphoid cells, and splenic tumor cells. Chromatin immunoprecipitation experiments demonstrated that v-Rel binds to the sh3bgrl promoter in transformed cells. Coexpression of SH3BGRL with v-Rel in primary splenic lymphocytes reduced the number of colonies formed by 76%. Mutations in the predicted SH3-binding domain of SH3BGRL abolished the suppressive effect on v-Rel transformation and resulted in colony numbers comparable to those formed by v-Rel alone. However, mutations in the predicted EVH1-binding domain of SH3BGRL only had a modest effect on suppression of v-Rel transformation. This study provides the first example of a gene that is downregulated in v-Rel-expressing cells that also plays a role in v-Rel transformation.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0950-9232
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
2
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pubmed:volume |
25
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
756-68
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:16186799-Amino Acid Sequence,
pubmed-meshheading:16186799-Animals,
pubmed-meshheading:16186799-Base Sequence,
pubmed-meshheading:16186799-Cell Transformation, Neoplastic,
pubmed-meshheading:16186799-Chick Embryo,
pubmed-meshheading:16186799-DNA, Complementary,
pubmed-meshheading:16186799-Electrophoretic Mobility Shift Assay,
pubmed-meshheading:16186799-Humans,
pubmed-meshheading:16186799-Molecular Sequence Data,
pubmed-meshheading:16186799-Mutagenesis, Site-Directed,
pubmed-meshheading:16186799-Oncogene Proteins v-rel,
pubmed-meshheading:16186799-Promoter Regions, Genetic,
pubmed-meshheading:16186799-Proteins,
pubmed-meshheading:16186799-Sequence Homology, Amino Acid,
pubmed-meshheading:16186799-src Homology Domains
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pubmed:year |
2006
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pubmed:articleTitle |
The suppression of SH3BGRL is important for v-Rel-mediated transformation.
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pubmed:affiliation |
Section of Molecular Genetics and Microbiology, Institute of Cellular and Molecular Biology, University of Texas at Austin, Austin, TX 78712-1095, USA.
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pubmed:publicationType |
Journal Article,
Research Support, N.I.H., Extramural
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