Title : Nuclear xenobiotic receptor pregnane X receptor locks corepressor silencing mediator for retinoid and thyroid hormone receptors (SMRT) onto the CYP24A1 promoter to attenuate vitamin D3 activation.

Pub. Date : 2009 Feb

PMID : 18981260






7 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 In the absence of vitamin D(3), PXR activates the CYP24A1 gene by directly binding to and transactivating vitamin D-response elements (VDREs) within its promoter. Vitamin D cytochrome P450, family 24, subfamily a, polypeptide 1 Mus musculus
2 Vitamin D(3) activates the CYP24A1 promoter by dissociating the corepressor silencing mediator for retinoid and thyroid hormone receptors (SMRT) from the vitamin D receptor (VDR) on those VDREs. Vitamin D cytochrome P450, family 24, subfamily a, polypeptide 1 Mus musculus
3 PXR strongly represses vitamin D(3) activation of the CYP24A1 gene, in which PXR indirectly binds to and prevents vitamin D(3)-dependent dissociation of SMRT from the CYP24A1 promoter. Vitamin D cytochrome P450, family 24, subfamily a, polypeptide 1 Mus musculus
4 PXR strongly represses vitamin D(3) activation of the CYP24A1 gene, in which PXR indirectly binds to and prevents vitamin D(3)-dependent dissociation of SMRT from the CYP24A1 promoter. Vitamin D cytochrome P450, family 24, subfamily a, polypeptide 1 Mus musculus
5 PXR strongly represses vitamin D(3) activation of the CYP24A1 gene, in which PXR indirectly binds to and prevents vitamin D(3)-dependent dissociation of SMRT from the CYP24A1 promoter. Vitamin D cytochrome P450, family 24, subfamily a, polypeptide 1 Mus musculus
6 PXR strongly represses vitamin D(3) activation of the CYP24A1 gene, in which PXR indirectly binds to and prevents vitamin D(3)-dependent dissociation of SMRT from the CYP24A1 promoter. Vitamin D cytochrome P450, family 24, subfamily a, polypeptide 1 Mus musculus
7 Thus, our present study defines the novel molecular mechanism by which PXR and CAR mediate drug interactions with vitamin D(3) to regulate the CYP24A1 gene. Vitamin D cytochrome P450, family 24, subfamily a, polypeptide 1 Mus musculus