Description
Mouse HIF2a (Hypoxia Inducible Factor 2 Alpha) ELISA Kit
The Mouse HIF2A (Hypoxia-Inducible Factor 2 Alpha) ELISA Kit is specifically designed for the precise measurement of HIF2A levels in mouse serum, plasma, and cell culture supernatants. This kit offers exceptional sensitivity and specificity, ensuring accurate and consistent results for a variety of research purposes.HIF2A is a key transcription factor that plays a critical role in the cellular response to hypoxia, regulating gene expression and influencing various physiological processes. It is implicated in a range of diseases, including cancer, cardiovascular disorders, and metabolic conditions, making it a valuable target for investigations and potential therapeutic strategies.
With the Mouse HIF2A ELISA Kit, researchers can easily quantify HIF2A levels in experimental samples, aiding in the understanding of its role in disease pathogenesis and facilitating the development of novel treatment approaches. This kit provides a reliable tool for studying hypoxia-related pathways and exploring potential therapeutic interventions.
| Product Name: | Mouse HIF2a (Hypoxia Inducible Factor 2 Alpha) ELISA Kit |
| Product Code: | MOFI01278 |
| Size: | 96 Assays |
| Alias: | HIF2a |
| Detection Method: | Sandwich ELISA |
| Application: | This immunoassay kit allows for the in vitro quantitative determination of Mouse HIF2a concentrations in serum plasma and other biological fluids. |
| Sensitivity: | 46.875pg/ml |
| Range: | 78.125-5000pg/ml |
| Storage: | 4°C for 6 months |
| Note: | For Research Use Only |
| Recovery: | Matrices listed below were spiked with certain level of Mouse HIF2a and the recovery rates were calculated by comparing the measured value to the expected amount of Mouse HIF2a in samples. Not Available. |
| Linearity: | The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Mouse HIF2a and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected. Not Available. |
| Intra Assay: | CV <8% |
| Inter Assay: | CV <10% |
| Component | Quantity | Storage |
| ELISA Microplate (Dismountable) | 8-12 strips | 4°C for 6 months |
| Lyophilized Standard | 2 | 4°C/-20°C |
| Sample/Standard Dilution Buffer | 20ml | 4°C |
| Biotin-labeled Antibody(Concentrated) | 120ul | 4°C (Protect from light) |
| Antibody Dilution Buffer | 10ml | 4°C |
| HRP-Streptavidin Conjugate(SABC) | 120ul | 4°C (Protect from light) |
| SABC Dilution Buffer | 10ml | 4°C |
| TMB Substrate | 10ml | 4°C (Protect from light) |
| Stop Solution | 10ml | 4°C |
| Wash Buffer(25X) | 30ml | 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
| Uniprot | P97481 |
| UniProt Protein Function: | HIF2A: Transcription factor involved in the induction of oxygen regulated genes. Binds to core DNA sequence 5'-[AG]CGTG-3' within the hypoxia response element (HRE) of target gene promoters. Regulates the vascular endothelial growth factor (VEGF) expression and seems to be implicated in the development of blood vessels and the tubular system of lung. May also play a role in the formation of the endothelium that gives rise to the blood brain barrier. Potent activator of the Tie-2 tyrosine kinase expression. Activation seems to require recruitment of transcriptional coactivators such as CREBPB and probably EP300. Interaction with redox regulatory protein APEX seems to activate CTAD. Efficient DNA binding requires dimerization with another bHLH protein. Heterodimerizes with ARNT. Interacts with CREBBP. Interacts with EGLN1. Interacts with VHL. Expressed in most tissues, with highest levels in placenta, lung and heart. Selectively expressed in endothelial cells. |
| UniProt Protein Details: | Protein type:Transcription factor; DNA-binding Cellular Component: cytoplasm; nuclear speck; nucleus; transcription factor complex Molecular Function:cobalt ion binding; DNA binding; histone acetyltransferase binding; protein binding; protein heterodimerization activity; sequence-specific DNA binding; transcription factor activity; transcription factor binding Biological Process: angiogenesis; blood vessel remodeling; cell differentiation; cell maturation; embryonic placenta development; erythrocyte differentiation; hemopoiesis; iron ion homeostasis; lung development; mitochondrion organization and biogenesis; myoblast cell fate commitment; negative regulation of transcription from RNA polymerase II promoter; norepinephrine biosynthetic process; norepinephrine metabolic process; positive regulation of transcription from RNA polymerase II promoter; regulation of heart rate; regulation of transcription from RNA polymerase II promoter in response to oxidative stress; response to hypoxia; response to oxidative stress; surfactant homeostasis; visual perception |
| UniProt Code: | P97481 |
| NCBI GenInfo Identifier: | 3914285 |
| NCBI Gene ID: | 13819 |
| NCBI Accession: | P97481.2 |
| UniProt Secondary Accession: | P97481,O08787, O55046, |
| UniProt Related Accession: | P97481 |
| Molecular Weight: | 96,712 Da |
| NCBI Full Name: | Endothelial PAS domain-containing protein 1 |
| NCBI Synonym Full Names: | endothelial PAS domain protein 1 |
| NCBI Official Symbol: | Epas1Â Â |
| NCBI Official Synonym Symbols: | HLF; HRF; MOP2; HIF2A; bHLHe73; HIF-2alpha  |
| NCBI Protein Information: | endothelial PAS domain-containing protein 1 |
| UniProt Protein Name: | Endothelial PAS domain-containing protein 1 |
| UniProt Synonym Protein Names: | HIF-1-alpha-like factor; HLF; mHLF; HIF-related factor; HRF; Hypoxia-inducible factor 2-alpha; HIF-2-alpha; HIF2-alpha |
| Protein Family: | Endothelial PAS domain-containing protein |
| UniProt Gene Name: | Epas1Â Â |
| UniProt Entry Name: | EPAS1_MOUSE |
*Note: Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
| Step | Procedure |
| 1. | Set standard, test sample and control (zero) wells on the pre-coated plate respectively, and then, record their positions. It is recommended to measure each standard and sample in duplicate. Wash plate 2 times before adding standard, sample and control (zero) wells! |
| 2. | Aliquot 0.1ml standard solutions into the standard wells. |
| 3. | Add 0.1 ml of Sample / Standard dilution buffer into the control (zero) well. |
| 4. | Add 0.1 ml of properly diluted sample (Human serum, plasma, tissue homogenates and other biological fluids.) into test sample wells. |
| 5. | Seal the plate with a cover and incubate at 37 °C for 90 min. |
| 6. | Remove the cover and discard the plate content, clap the plate on the absorbent filter papers or other absorbent material. Do NOT let the wells completely dry at any time. Wash plate X2. |
| 7. | Add 0.1 ml of Biotin- detection antibody working solution into the above wells (standard, test sample & zero wells). Add the solution at the bottom of each well without touching the side wall. |
| 8. | Seal the plate with a cover and incubate at 37°C for 60 min. |
| 9. | Remove the cover, and wash plate 3 times with Wash buffer. Let wash buffer rest in wells for 1 min between each wash. |
| 10. | Add 0.1 ml of SABC working solution into each well, cover the plate and incubate at 37°C for 30 min. |
| 11. | Remove the cover and wash plate 5 times with Wash buffer, and each time let the wash buffer stay in the wells for 1-2 min. |
| 12. | Add 90 µL of TMB substrate into each well, cover the plate and incubate at 37°C in dark within 10-20 min. (Note: This incubation time is for reference use only, the optimal time should be determined by end user.) And the shades of blue can be seen in the first 3-4 wells (with most concentrated standard solutions), the other wells show no obvious color. |
| 13. | Add 50 µL of Stop solution into each well and mix thoroughly. The color changes into yellow immediately. |
| 14. | Read the O.D. absorbance at 450 nm in a microplate reader immediately after adding the stop solution. |
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. |
