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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
26
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pubmed:dateCreated |
1997-7-16
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pubmed:databankReference | |
pubmed:abstractText |
The hepatitis B virus X protein induces transcriptional activation of a wide variety of viral and cellular genes. In addition to its ability to interact directly with many nuclear transcription factors, several reports indicate that the X protein stimulates different cytoplasmic kinase signal cascades. Using the yeast two-hybrid screen, we have isolated a clone designated X-associated protein 3 (XAP3) that encodes a human homolog of the rat protein kinase C-binding protein. One of the activation domains of X (amino acids 90-122) is required for binding to XAP3, while the NH2-terminal part of XAP3 is necessary for binding to X. Both X and XAP3 bound specifically to the eta PKC isoenzyme synthesized in rabbit reticulocyte lysates. Overexpression of XAP3 enhanced X transactivation activity. These results support earlier findings that one of the mechanisms of transactivation by X is through involvement with the cellular protein kinase C pathway.
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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/Carrier Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/DNA, Complementary,
http://linkedlifedata.com/resource/pubmed/chemical/Isoenzymes,
http://linkedlifedata.com/resource/pubmed/chemical/Protein Kinase C,
http://linkedlifedata.com/resource/pubmed/chemical/Trans-Activators,
http://linkedlifedata.com/resource/pubmed/chemical/hepatitis B virus X protein
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
27
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pubmed:volume |
272
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
16482-9
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:9195957-Amino Acid Sequence,
pubmed-meshheading:9195957-Animals,
pubmed-meshheading:9195957-Base Sequence,
pubmed-meshheading:9195957-Binding Sites,
pubmed-meshheading:9195957-Blotting, Northern,
pubmed-meshheading:9195957-Carrier Proteins,
pubmed-meshheading:9195957-DNA, Complementary,
pubmed-meshheading:9195957-Humans,
pubmed-meshheading:9195957-Isoenzymes,
pubmed-meshheading:9195957-Molecular Sequence Data,
pubmed-meshheading:9195957-Phosphorylation,
pubmed-meshheading:9195957-Protein Kinase C,
pubmed-meshheading:9195957-Rabbits,
pubmed-meshheading:9195957-Rats,
pubmed-meshheading:9195957-Trans-Activators,
pubmed-meshheading:9195957-Transcriptional Activation
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pubmed:year |
1997
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pubmed:articleTitle |
The hepatitis B virus X-associated protein, XAP3, is a protein kinase C-binding protein.
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pubmed:affiliation |
Moffitt Cancer Center & Research Institute, Department of Medical Microbiology/Immunology, College of Medicine, University of South Florida, Tampa, Florida 33612, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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