rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
2007-2-23
|
pubmed:abstractText |
Constitutive activity of NF-kappaB is associated with various human cancers including adult T-cell leukemia (ATL). In this study, we have found Tgat that activates NF-kappaB by screening a cDNA expression library derived from ATL cells. We previously identified Tgat as the oncogene, which consists of the Rho-guanine nucleotide exchange factor (Rho-GEF) domain and the unique C-terminal region, as a consequence of alternative splicing of the Trio transcript. Tgat activated the IKK activity by binding with the IkappaB kinase (IKK) complex. The Tgat mutants lacking the C-terminal region failed to associate with the IKK complex suggesting an essential role of the unique sequence. The mutation causing the loss of GEF activity also abolished the NF-kappaB activation. Moreover, co-expressed p100 was efficiently processed into p52 in the Tgat-expressing cells, suggesting the co-involvement of non-canonical pathway.
|
pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0006-291X
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
30
|
pubmed:volume |
355
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
269-74
|
pubmed:dateRevised |
2009-11-19
|
pubmed:meshHeading |
pubmed-meshheading:17292329-Cell Line,
pubmed-meshheading:17292329-DNA, Complementary,
pubmed-meshheading:17292329-Genes, Reporter,
pubmed-meshheading:17292329-Guanine Nucleotide Exchange Factors,
pubmed-meshheading:17292329-Humans,
pubmed-meshheading:17292329-I-kappa B Kinase,
pubmed-meshheading:17292329-Kidney,
pubmed-meshheading:17292329-Kinetics,
pubmed-meshheading:17292329-NF-kappa B,
pubmed-meshheading:17292329-Phosphoproteins,
pubmed-meshheading:17292329-Protein-Serine-Threonine Kinases,
pubmed-meshheading:17292329-Recombinant Proteins,
pubmed-meshheading:17292329-Transfection
|
pubmed:year |
2007
|
pubmed:articleTitle |
Tgat, a Rho-specific guanine nucleotide exchange factor, activates NF-kappaB via physical association with IkappaB kinase complexes.
|
pubmed:affiliation |
Department of Molecular Microbiology and Immunology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|