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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1994-5-10
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pubmed:abstractText |
NF-kappa B is an inducible transcription factor that regulates the expression of numerous genes involved in immune and inflammation responses and in cellular growth control. Typically, NF-kappa B is localized in the cytoplasm complexed with members of the I kappa B family. The most well characterized form of NF-kappa B is comprised of a heterodimer of a 50 kD (p50/NFKB1) and a 65 kD (p65/RelA) protein. This heterodimeric protein was thought to be primarily responsible for transcriptional regulation of target genes. However, recent studies have led to the identification of other kappa B binding proteins such as c-Rel, RelB and p52 (NFKB2/lyt-10) although their role in gene regulation has been less clear. Here, using gel mobility shift assays as well as a highly sensitive DNA-protein crosslinking assay, we provide evidence for the existence of multiple tumor necrosis factor (TNF)- inducible kappa B binding complexes containing various members of the NF-kappa B/Rel family, namely p50 and p65 as well as the c-Rel and p52 oncoproteins. Dimeric complexes containing various combinations of these proteins appear rapidly in nuclei of TNF-alpha-stimulated cells and include, along with a p50-p65 heterodimer, p50-c-Rel, p65-c-Rel, p52-c-Rel and p52-p65 complexes. The presence of multiple inducible complexes containing distinct combinations of NF-kappa B/Rel family members indicate that specific kappa B responsive genes may be regulated in an NF-kappa B subunit-dependent manner.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antibodies,
http://linkedlifedata.com/resource/pubmed/chemical/DNA,
http://linkedlifedata.com/resource/pubmed/chemical/NF-kappa B,
http://linkedlifedata.com/resource/pubmed/chemical/NF-kappa B p50 Subunit,
http://linkedlifedata.com/resource/pubmed/chemical/Transcription Factor RelA,
http://linkedlifedata.com/resource/pubmed/chemical/Tumor Necrosis Factor-alpha
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0950-9232
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
9
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
1487-92
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8152812-Antibodies,
pubmed-meshheading:8152812-DNA,
pubmed-meshheading:8152812-HeLa Cells,
pubmed-meshheading:8152812-Humans,
pubmed-meshheading:8152812-NF-kappa B,
pubmed-meshheading:8152812-NF-kappa B p50 Subunit,
pubmed-meshheading:8152812-Transcription Factor RelA,
pubmed-meshheading:8152812-Tumor Necrosis Factor-alpha
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pubmed:year |
1994
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pubmed:articleTitle |
Activation of multiple NF-kappa B/Rel DNA-binding complexes by tumor necrosis factor.
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pubmed:affiliation |
Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill 27599.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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