Description
Human Nuclear receptor subfamily 1 group I member 3 (NR1I3) ELISA Kit
The Human Nuclear Receptor Subfamily 1 Group I Member 3 (NR1I3) ELISA Kit is a powerful tool for the precise measurement of NR1I3 levels in human samples such as serum, plasma, and cell culture supernatants. This kit offers exceptional sensitivity and specificity, guaranteeing accurate and consistent results for a variety of research applications.NR1I3, also known as the Pregnane X Receptor (PXR), is a key regulator of drug metabolism and plays a critical role in the body's response to foreign substances.
Its dysregulation has been linked to various diseases, including liver disorders and cancer. The NR1I3 ELISA Kit enables researchers to study the expression and activity of this important nuclear receptor, providing valuable insights into its functions and potential therapeutic targets.
| Product Name: | Human Nuclear receptor subfamily 1 group I member 3 (NR1I3) ELISA Kit |
| SKU: | HUEB2219 |
| Size: | 96T |
| Target: | Human Nuclear receptor subfamily 1 group I member 3 (NR1I3) |
| Synonyms: | Constitutive activator of retinoid response, Constitutive androstane receptor, Orphan nuclear receptor MB67, Constitutive active response, CAR, CAR |
| Assay Type: | Sandwich |
| Detection Method: | ELISA |
| Reactivity: | Human |
| Detection Range: | 0.312-20ng/mL |
| Sensitivity: | 0.15ng/mL |
| Intra CV: | 4.7% | ||||||||||||||||||||
| Inter CV: | 8.2% | ||||||||||||||||||||
| Linearity: |
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| Recovery: |
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| Function: | Binds and transactivates the retinoic acid response elements that control expression of the retinoic acid receptor beta 2 and alcohol dehydrogenase 3 genes. Transactivates both the phenobarbital responsive element module of the human CYP2B6 gene and the CYP3A4 xenobiotic response element. |
| Uniprot: | Q14994 |
| Sample Type: | Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids |
| Specificity: | Natural and recombinant human Nuclear receptor subfamily 1 group I member 3 |
| Sub Unit: | Interacts with ECT2 (By similarity). Heterodimer of NR1I3 and RXR. Interacts with PSMC4. Directly interacts with DNAJC7. The DNAJC7-NR1I3 complex may also include HSP90. |
| Subcellular Location: | Nucleus Cytoplasm Cytoplasm Cytoskeleton Recruited to the cytoplasm by DNAJC7. |
| Storage: | Please see kit components below for exact storage details |
| Note: | For research use only |
| UniProt Protein Function: | NR1I3: Binds and transactivates the retinoic acid response elements that control expression of the retinoic acid receptor beta 2 and alcohol dehydrogenase 3 genes. Transactivates both the phenobarbital responsive element module of the human CYP2B6 gene and the CYP3A4 xenobiotic response element. Interacts with ECT2. Heterodimer of NR1I3 and RXR. Interacts with PSMC4. Directly interacts with DNAJC7. The DNAJC7-NR1I3 complex may also include HSP90. By dexamethasone. Predominantly expressed in liver. Belongs to the nuclear hormone receptor family. NR1 subfamily. 7 isoforms of the human protein are produced by alternative splicing. |
| UniProt Protein Details: | Protein type:Nuclear receptor; DNA-binding Chromosomal Location of Human Ortholog: 1q23.3 Cellular Component: nucleoplasm; cytoskeleton; cytoplasm; cytosol; nucleus Molecular Function:ligand-dependent nuclear receptor activity; androgen receptor activity; DNA binding; zinc ion binding; transcription coactivator activity; thyroid hormone receptor activity; transcription factor activity Biological Process: transcription initiation from RNA polymerase II promoter; intracellular receptor-mediated signaling pathway; androgen receptor signaling pathway; gene expression; steroid hormone mediated signaling; positive regulation of transcription from RNA polymerase II promoter; signal transduction; negative regulation of transcription, DNA-dependent |
| NCBI Summary: | This gene encodes a member of the nuclear receptor superfamily, and is a key regulator of xenobiotic and endobiotic metabolism. The protein binds to DNA as a monomer or a heterodimer with the retinoid X receptor and regulates the transcription of target genes involved in drug metabolism and bilirubin clearance, such as cytochrome P450 family members. Unlike most nuclear receptors, this transcriptional regulator is constitutively active in the absence of ligand but is regulated by both agonists and inverse agonists. Ligand binding results in translocation of this protein to the nucleus, where it activates or represses target gene transcription. These ligands include bilirubin, a variety of foreign compounds, steroid hormones, and prescription drugs. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008] |
| UniProt Code: | Q14994 |
| NCBI GenInfo Identifier: | 49066046 |
| NCBI Gene ID: | 9970 |
| NCBI Accession: | Q14994.2 |
| UniProt Secondary Accession: | Q14994,Q0VAC9, Q4U0F0, E9PB75, E9PC13, E9PDU3, E9PGH6 E9PH10, E9PHC8, E9PHN4, F1D8Q0, F1D8Q1, |
| UniProt Related Accession: | Q14994 |
| Molecular Weight: | 352 |
| NCBI Full Name: | Nuclear receptor subfamily 1 group I member 3 |
| NCBI Synonym Full Names: | nuclear receptor subfamily 1, group I, member 3 |
| NCBI Official Symbol: | NR1I3 |
| NCBI Official Synonym Symbols: | CAR; CAR1; MB67 |
| NCBI Protein Information: | nuclear receptor subfamily 1 group I member 3; constitutive active receptor; constitutive active response; orphan nuclear receptor MB67; orphan nuclear hormone receptor; constitutive androstane receptor; constitutive activator of retinoid response; constitutive androstane nuclear receptor variant 2; constitutive androstane nuclear receptor variant 3; constitutive androstane nuclear receptor variant 4; constitutive androstane nuclear receptor variant 5 |
| UniProt Protein Name: | Nuclear receptor subfamily 1 group I member 3 |
| UniProt Synonym Protein Names: | Constitutive activator of retinoid response; Constitutive active response; Constitutive androstane receptor; CAR; Orphan nuclear receptor MB67 |
| Protein Family: | Nuclear receptor subfamily |
| UniProt Gene Name: | NR1I3 |
| UniProt Entry Name: | NR1I3_HUMAN |
| Component | Quantity (96 Assays) | Storage |
| ELISA Microplate (Dismountable) | 8×12 strips | -20°C |
| Lyophilized Standard | 2 | -20°C |
| Sample Diluent | 20ml | -20°C |
| Assay Diluent A | 10mL | -20°C |
| Assay Diluent B | 10mL | -20°C |
| Detection Reagent A | 120µL | -20°C |
| Detection Reagent B | 120µL | -20°C |
| Wash Buffer | 30mL | 4°C |
| Substrate | 10mL | 4°C |
| Stop Solution | 10mL | 4°C |
| Plate Sealer | 5 | - |
Other materials and equipment required:
- Microplate reader with 450 nm wavelength filter
- Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
- Incubator
- Deionized or distilled water
- Absorbent paper
- Buffer resevoir
*Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Allow all reagents to reach room temperature (Please do not dissolve the reagents at 37°C directly). All the reagents should be mixed thoroughly by gently swirling before pipetting. Avoid foaming. Keep appropriate numbers of strips for 1 experiment and remove extra strips from microtiter plate. Removed strips should be resealed and stored at -20°C until the kits expiry date. Prepare all reagents, working standards and samples as directed in the previous sections. Please predict the concentration before assaying. If values for these are not within the range of the standard curve, users must determine the optimal sample dilutions for their experiments. We recommend running all samples in duplicate.
| Step | |
| 1. | Add Sample: Add 100µL of Standard, Blank, or Sample per well. The blank well is added with Sample diluent. Solutions are added to the bottom of micro ELISA plate well, avoid inside wall touching and foaming as possible. Mix it gently. Cover the plate with sealer we provided. Incubate for 120 minutes at 37°C. |
| 2. | Remove the liquid from each well, don't wash. Add 100µL of Detection Reagent A working solution to each well. Cover with the Plate sealer. Gently tap the plate to ensure thorough mixing. Incubate for 1 hour at 37°C. Note: if Detection Reagent A appears cloudy warm to room temperature until solution is uniform. |
| 3. | Aspirate each well and wash, repeating the process three times. Wash by filling each well with Wash Buffer (approximately 400µL) (a squirt bottle, multi-channel pipette,manifold dispenser or automated washer are needed). Complete removal of liquid at each step is essential. After the last wash, completely remove remaining Wash Buffer by aspirating or decanting. Invert the plate and pat it against thick clean absorbent paper. |
| 4. | Add 100µL of Detection Reagent B working solution to each well. Cover with the Plate sealer. Incubate for 60 minutes at 37°C. |
| 5. | Repeat the wash process for five times as conducted in step 3. |
| 6. | Add 90µL of Substrate Solution to each well. Cover with a new Plate sealer and incubate for 10-20 minutes at 37°C. Protect the plate from light. The reaction time can be shortened or extended according to the actual color change, but this should not exceed more than 30 minutes. When apparent gradient appears in standard wells, user should terminatethe reaction. |
| 7. | Add 50µL of Stop Solution to each well. If color change does not appear uniform, gently tap the plate to ensure thorough mixing. |
| 8. | Determine the optical density (OD value) of each well at once, using a micro-plate reader set to 450 nm. User should open the micro-plate reader in advance, preheat the instrument, and set the testing parameters. |
| 9. | After experiment, store all reagents according to the specified storage temperature respectively until their expiry. |
When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.
| Sample Type | Protocol |
| Serum | If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. |
| Plasma | Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit. |
| Urine & Cerebrospinal Fluid | Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid. |
| Cell culture supernatant | Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately. |
| Cell lysates | Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Tissue homogenates | The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C. |
| Tissue lysates | Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Breast Milk | Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles. |
