Source:http://linkedlifedata.com/resource/pubmed/id/10403788
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1999-8-5
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pubmed:abstractText |
Steroid hormone receptors (SHR) form complexes with heat shock proteins (hsps). The 1alpha,25-dihydroxyvitamin D(3) receptor (VDR) has not been previously shown to interact with hsps. During expression and purification of VDR-glutathione S-transferase (VDR-GST) fusion proteins encompassing full-length, DNA, and ligand-binding domains of the VDR (FL-VDR, DBD-VDR, and LBD-VDR), we observed binding of bacterial hsps with VDR-GST constructs. All VDR constructs bound DnaK in amounts greater than GST alone and bound smaller amounts of DnaJ or GrpE. GroEL bound only to FL-VDR. GroES did not bind to VDR. When VDR-GST constructs were incubated with a reticulocyte lysate system that has been used previously to examine SHR-hsp interactions, eukaryotic hsc70 was detected bound to FL-VDR and DBD-VDR. Binding of hsp90 to VDR was not detected. However, geldanamycin, an hsp90 inhibitor, reduced 1alpha,25-dihydroxyvitamin D(3)-mediated gene activation in osteoblasts. Our data show that the bacterial and eukaryotic hsps associate with the VDR and might be involved in VDR function.
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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/Calcitriol,
http://linkedlifedata.com/resource/pubmed/chemical/Chaperonins,
http://linkedlifedata.com/resource/pubmed/chemical/DNA,
http://linkedlifedata.com/resource/pubmed/chemical/Glutathione Transferase,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Fusion Proteins
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 1999 Academic Press.
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pubmed:issnType |
Print
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pubmed:day |
5
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pubmed:volume |
260
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
446-52
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:10403788-Animals,
pubmed-meshheading:10403788-Base Sequence,
pubmed-meshheading:10403788-Blotting, Western,
pubmed-meshheading:10403788-Calcitriol,
pubmed-meshheading:10403788-Chaperonins,
pubmed-meshheading:10403788-DNA,
pubmed-meshheading:10403788-Eukaryotic Cells,
pubmed-meshheading:10403788-Glutathione Transferase,
pubmed-meshheading:10403788-Humans,
pubmed-meshheading:10403788-Molecular Sequence Data,
pubmed-meshheading:10403788-Prokaryotic Cells,
pubmed-meshheading:10403788-Protein Binding,
pubmed-meshheading:10403788-Rats,
pubmed-meshheading:10403788-Recombinant Fusion Proteins,
pubmed-meshheading:10403788-Tumor Cells, Cultured
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pubmed:year |
1999
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pubmed:articleTitle |
Association of prokaryotic and eukaryotic chaperone proteins with the human 1alpha,25-dihydroxyvitamin D(3) receptor.
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pubmed:affiliation |
Department of Medicine, Mayo Clinic/Foundation, Rochester, Minnesota, 55905, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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