Dog Pregnane X Receptor (dPXR; nr1i2)
Also available in: Human, Rat, Mouse, Cynomolgus Monkey
This assay product utilizes proprietary human cells engineered to provide constitutive, high-level expression of the Dog Pregnane X Receptor (nr1i2), a ligand-dependent transcription factor commonly referred to as PXR. PXR is also known as the Steroid and Xenobiotic sensing nuclear receptor (SXR).
Pregnane X Receptor also known as nuclear receptor subfamily 1, group I, member 2 (NR1I2) and SXR is a nuclear receptor that binds and is activated by variety of endogenous and xenobiotic compounds. PXR 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, its response to specific ligands is species-specific. PXR is activated by naturally occurring steroids, such as pregnenolone and progesterone and binds to a response element in the promoters of the CYP3A4 and ABCB1/MDR1 genes.
For more information on PXR, visit the Nuclear Receptor Resource.
Also available in: Human, Rat, Mouse, Cynomolgus Monkey
Kits are offered in different assay formats to accommodate researchers’ needs: 3x 32 and 1x 96 assay formats for screening small numbers of test compounds, as well as custom bulk reagents for HTS applications. Assay systems are all inclusive, providing reporter cells, optimized growth media, media for diluting test compounds, a positive-control agonist, luciferase detection reagent, a white assay plate, a detailed protocol, and a protocol quick guide. All kits are shipped on dry ice.
dPXR Reporter Cells are prepared using INDIGO’s proprietary CryoMite™ process. This cryo-preservation method yields exceptional cell viability post-thaw, and provides the convenience of immediately dispensing healthy, division-competent reporter cells into assay plates. There is no need for cumbersome intermediate treatment steps such as spin-and-rinse of cells, viability determinations, or cell titer adjustments prior to assay setup.
INDIGO Bioscience’s Nuclear Receptor Reporter Assays are all-inclusive cell-based assay systems. In addition to dPXR Reporter Cells, this kit provides two optimized media for use during cell culture and in diluting the user’s test samples, a reference agonist, Luciferase Detection Reagent, and a cell culture-ready assay plate. dPXR Reporter Cells cannot be refrozen or maintained in extended culture.
| Product Family | Product Number | Product Description |
| D0700 dPXR (nr1i2) | D07001-32 | Dog PXR Reporter Assay System, 3 x 32 assays in 96-well format |
| D07001 | Dog PXR Reporter Assay System, 1 x 96-well format assays |
Service Assays: Human, Rat, Mouse, Cynomologus Monkey, Dog
The primary application of INDIGO’s cell-based nuclear receptor assays are to quantitatively assess the bioactivity of a test compound as an agonist (activator) or antagonist (inhibition of an agonist response) of a given receptor. Service assays include a positive control reference compound and “vehicle” control for every experiment. A formal study report and all data files are provided to the client upon completion of the study. To receive a quote for your proposed study, complete & submit the online “Request a Quote” form or contact an INDIGO Customer Service Representative to discuss your desired study parameters. To initiate a Service Study, download and complete all fields of the Excel worksheet “Service Work Order" then submit the electronic file to INDIGO Customer Service.
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Profiling Drug Activity of Human and Ortholog Xenobiotic-Sensing Receptors: PXR, CAR, AhR, and FXR
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Species Differences in Pregnane X Receptor Activation: Examination of common laboratory animal species
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INDIGO Offers Next Generation in PXR Assay Systems
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Indigo Announces In Vitro Toxicology Platform
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INDIGO Now Offers PXR Assay Systems
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Evidence for triclosan-induced activation of human and rodent xenobiotic nuclear receptors
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