Recombinant Human PXR protein is a Human Full Length protein, expressed in Baculovirus, with >90% purity and suitable for GSA, EMSA.
| Application | Reactivity | Dilution info | Notes |
|---|---|---|---|
Application GSA | Reactivity Reacts | Dilution info - | Notes - |
Application EMSA | Reactivity Reacts | Dilution info - | Notes - |
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Nuclear receptor that binds and is activated by variety of endogenous and xenobiotic compounds. Transcription factor that activates the transcription of multiple genes involved in the metabolism and secretion of potentially harmful xenobiotics, drugs and endogenous compounds. Activated by the antibiotic rifampicin and various plant metabolites, such as hyperforin, guggulipid, colupulone, and isoflavones. Response to specific ligands is species-specific. Activated by naturally occurring steroids, such as pregnenolone and progesterone. Binds to a response element in the promoters of the CYP3A4 and ABCB1/MDR1 genes.
PXR, NR1I2, Nuclear receptor subfamily 1 group I member 2, Orphan nuclear receptor PAR1, Orphan nuclear receptor PXR, Pregnane X receptor, Steroid and xenobiotic receptor, SXR
Recombinant Human PXR protein is a Human Full Length protein, expressed in Baculovirus, with >90% purity and suitable for GSA, EMSA.
pH: 7.9
Constituents: 20% Glycerol (glycerin, glycerine), 0.75% Potassium chloride, 0.316% Tris HCl, 0.0154% (R*,R*)-1,4-Dimercaptobutan-2,3-diol, 0.00584% EDTA
ab82082 is purified by an affinity column in combination with FPLC chromatography and is greater than 90% homogeneous.ab82082 contains no detectable proteases, DNase and RNase activity.
Nuclear receptor that binds and is activated by variety of endogenous and xenobiotic compounds. Transcription factor that activates the transcription of multiple genes involved in the metabolism and secretion of potentially harmful xenobiotics, drugs and endogenous compounds. Activated by the antibiotic rifampicin and various plant metabolites, such as hyperforin, guggulipid, colupulone, and isoflavones. Response to specific ligands is species-specific. Activated by naturally occurring steroids, such as pregnenolone and progesterone. Binds to a response element in the promoters of the CYP3A4 and ABCB1/MDR1 genes.
Belongs to the nuclear hormone receptor family. NR1 subfamily.
1 unit equals 1 nanogram of purified protein.
ab82082 binds to DNA as a heterodimer with RXR alpha; 1000U (1ug) required.
PXR also known as the pregnane X receptor or NR1I2 is a nuclear receptor involved in the regulation of gene expression. It plays a significant role in detoxification processes. PXR has a molecular mass of approximately 49 kDa. This receptor is primarily expressed in the liver and intestine where it mediates the induction of enzymes important in metabolizing xenobiotics and endobiotics. Notably PXR activation leads to the expression of cytochrome P450 enzymes including CYP3A4 which are essential in drug metabolism.
The pregnane X receptor is an important sensor in the body's defense system against potentially harmful compounds. PXR forms a heterodimer complex with the retinoid X receptor (RXR) to exert its function. It binds to response elements in the promoter regions of target genes to regulate their transcription. This receptor is highly responsive to a variety of ligands including medications like buy tiagabine and endogenous steroids such as the pregnanolone chemical structure. Ligands binding to PXR result in the transcriptional upregulation of genes involved in several metabolic pathways.
The pregnane X receptor has significant roles in the regulation of drug metabolism and disposition pathways. PXR activation leads to the induction of detoxifying enzymes and transporters prominently within the xenobiotic metabolism pathway. It is closely linked with CYP450 enzymes particularly CYP3A4 and the transport protein MDR1. These proteins work together to increase the metabolism and clearance of a variety of drugs and toxins thereby protecting the organism from potential harm.
PXR is associated with conditions involving drug-induced liver injury and inflammatory bowel disease. Its regulation of CYP3A4 impacts the metabolism of various drugs which can lead to altered efficacy or toxicity as seen in these conditions. Additionally PXR dysregulation has implications in liver diseases where nuclear receptors are critical for maintaining metabolic homeostasis. Interactions between PXR and other nuclear receptors like the constitutive androstane receptor (CAR) further demonstrate its involvement in hepatic health and disease.
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