Description
Human PPAR alpha ELISA
Peroxisomes are organelles that contain enzymes for respiration and cholesterol and lipid metabolism in plants and animals. The peroxisome proliferators' action is believed to be controlled by specific receptors, known as PPARs, which are members of the steroid hormone receptor superfamily. PPARs control how target genes involved in cellular growth, diversification, and immune and inflammation responses are expressed. PPARA is a gene that, when mutated or overactive, causes fatty liver disease and lipid metabolism disorder. Mitochondrial gene expression and SREBF and miR33 in cholesterol and lipid homeostasis are some of PPAR associated pathways.
Product Name: | Human PPAR alpha ELISA Kit |
Product Code: | HUFI02773 |
Size: | 96 Assays |
Alias: | PPAR-alpha |
Detection method: | Sandwich ELISA, Double Antibody |
Application: | This immunoassay kit allows for the in vitro quantitative determination of Human PPAR-alpha concentrations in serum plasma and other biological fluids. |
Sensitivity: | 0.094ng/ml |
Range: | 0.156-10ng/ml |
Storage: | 4°C for 6 months |
Note: | For Research Use Only |
Recovery: | Matrices listed below were spiked with certain level of Human PPAR-alpha and the recovery rates were calculated by comparing the measured value to the expected amount of Human PPAR-alpha in samples. | ||||||||||||||||
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Linearity: | The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Human PPAR-alpha and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected. | ||||||||||||||||
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CV(%): | 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 | Q07869 |
UniProt Protein Function: | PPAR-alpha: Ligand-activated transcription factor. Key regulator of lipid metabolism. Activated by the endogenous ligand 1-palmitoyl- 2-oleoyl-sn-glycerol-3-phosphocholine (16:0/18:1-GPC). Activated by oleylethanolamide, a naturally occurring lipid that regulates satiety. Receptor for peroxisome proliferators such as hypolipidemic drugs and fatty acids. Regulates the peroxisomal beta-oxidation pathway of fatty acids. Functions as transcription activator for the ACOX1 and P450 genes. Transactivation activity requires heterodimerization with RXRA and is antagonized by NR2C2. Belongs to the nuclear hormone receptor family. NR1 subfamily. |
UniProt Protein Details: | Protein type:DNA-binding; Nuclear receptor Chromosomal Location of Human Ortholog: 22q13.31 Cellular Component: nucleoplasm; nucleus Molecular Function:protein domain specific binding; ligand-dependent nuclear receptor activity; NFAT protein binding; zinc ion binding; drug binding; phosphatase binding; protein binding; DNA binding; ubiquitin conjugating enzyme binding; sequence-specific DNA binding; protein complex binding; steroid hormone receptor activity; transcription factor activity; lipid binding Biological Process: circadian rhythm; epidermis development; wound healing; positive regulation of transcription, DNA-dependent; heart development; behavioral response to nicotine; cellular lipid metabolic process; negative regulation of transcription from RNA polymerase II promoter; fatty acid metabolic process; negative regulation of appetite; response to insulin stimulus; positive regulation of gluconeogenesis; negative regulation of blood pressure; circadian regulation of gene expression; negative regulation of glycolysis; negative regulation of protein binding; transcription initiation from RNA polymerase II promoter; intracellular receptor-mediated signaling pathway; lipoprotein metabolic process; regulation of circadian rhythm; positive regulation of fatty acid beta-oxidation; positive regulation of fatty acid oxidation; response to hypoxia; positive regulation of transcription from RNA polymerase II promoter; gene expression; steroid hormone mediated signaling; lipid metabolic process; fatty acid transport |
NCBI Summary: | Peroxisome proliferators include hypolipidemic drugs, herbicides, leukotriene antagonists, and plasticizers; this term arises because they induce an increase in the size and number of peroxisomes. Peroxisomes are subcellular organelles found in plants and animals that contain enzymes for respiration and for cholesterol and lipid metabolism. The action of peroxisome proliferators is thought to be mediated via specific receptors, called PPARs, which belong to the steroid hormone receptor superfamily. PPARs affect the expression of target genes involved in cell proliferation, cell differentiation and in immune and inflammation responses. Three closely related subtypes (alpha, beta/delta, and gamma) have been identified. This gene encodes the subtype PPAR-alpha, which is a nuclear transcription factor. Multiple alternatively spliced transcript variants have been described for this gene, although the full-length nature of only two has been determined. [provided by RefSeq, Jul 2008] |
UniProt Code: | Q07869 |
NCBI GenInfo Identifier: | 3041727 |
NCBI Gene ID: | 5465 |
NCBI Accession: | Q07869.2 |
UniProt Secondary Accession: | Q07869,Q16241, Q6I9S0, Q92486, Q92689, Q9Y3N1, B0G0X3 |
UniProt Related Accession: | Q07869 |
Molecular Weight: | 468 |
NCBI Full Name: | Peroxisome proliferator-activated receptor alpha |
NCBI Synonym Full Names: | peroxisome proliferator-activated receptor alpha |
NCBI Official Symbol: | PPARA |
NCBI Official Synonym Symbols: | PPAR; NR1C1; hPPAR; PPARalpha |
NCBI Protein Information: | peroxisome proliferator-activated receptor alpha; PPAR-alpha; nuclear receptor subfamily 1 group C member 1; peroxisome proliferative activated receptor, alpha; peroxisome proliferator-activated nuclear receptor alpha variant 3 |
UniProt Protein Name: | Peroxisome proliferator-activated receptor alpha |
UniProt Synonym Protein Names: | Nuclear receptor subfamily 1 group C member 1 |
Protein Family: | Peroxisome proliferator-activated receptor |
UniProt Gene Name: | PPARA |
UniProt Entry Name: | PPARA_HUMAN |
*Note: Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Before adding to wells, equilibrate the SABC working solution and TMB substrate for at least 30 min at 37°C. When diluting samples and reagents, they must be mixed completely and evenly. It is recommended to plot a standard curve for each test.
Step | Protocol |
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. |
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