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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12 Pt 1
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pubmed:dateCreated |
1985-1-3
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pubmed:abstractText |
A retinol-binding protein has been detected in the cytosol of human prostates with benign hyperplasia. The binding was of high affinity and specific for retinol (Kd = 35 nM), with other retinoids such as trans-retinoic acid, retinal, and the synthetic analogues, all-trans-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-2,4,6,8-nona tetraenoic acid and p-[(E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-1-propenyl] benzoic acid, showing little or no competition. The retinol binding, which sedimented as a 2S component on sucrose density gradients, was also unaffected by the addition of excess unlabeled steroid hormones. Furthermore, pretreatment of the cytosol proteins with heat and/or trypsin totally abolished the retinol binding. Parallel experiments with trans-retinoic acid suggest that the hyperplastic prostate possesses a second retinoid-binding site which is specific for retinoic acid and distinct from the retinol-binding component. Experiments with serum from patients with benign prostate hyperplasia revealed no binding at the 2S sedimentation position; this suggests that the retinoid-binding proteins were exclusively associated with prostatic tissue and were not therefore derived from serum.
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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/Receptors, Retinoic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Retinol-Binding Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Tretinoin,
http://linkedlifedata.com/resource/pubmed/chemical/Vitamin A
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
44
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
5532-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6093997-Carrier Proteins,
pubmed-meshheading:6093997-Cytosol,
pubmed-meshheading:6093997-Humans,
pubmed-meshheading:6093997-Kinetics,
pubmed-meshheading:6093997-Male,
pubmed-meshheading:6093997-Prostate,
pubmed-meshheading:6093997-Receptors, Retinoic Acid,
pubmed-meshheading:6093997-Retinol-Binding Proteins,
pubmed-meshheading:6093997-Tretinoin,
pubmed-meshheading:6093997-Vitamin A
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pubmed:year |
1984
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pubmed:articleTitle |
Characterization of the retinol and retinoic acid binding proteins in the human prostate.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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