Human Cell Biology ELISA Kits 3
Human LEPR (Leptin Receptor) CLIA Kit (HUES00089)
- SKU:
- HUES00089
- Product Type:
- ELISA Kit
- ELISA Type:
- CLIA Kit
- Size:
- 96 Assays
- Sensitivity:
- 46.88pg/mL
- Range:
- 78.13-5000pg/mL
- ELISA Type:
- Sandwich
- Synonyms:
- CD295, LEP-R, LR, LEPRD, OB-R, OBR
- Reactivity:
- Human
- Sample Type:
- Serum, plasma and other biological fluids
- Research Area:
- Cell Biology
Description
| Assay type: | Sandwich |
| Format: | 96T |
| Assay time: | 4.5h |
| Reactivity: | Human |
| Detection method: | Chemiluminescence |
| Detection range: | 78.13-5000 pg/mL |
| Sensitivity: | 46.88 pg/mL |
| Sample volume: | 100µL |
| Sample type: | Serum, plasma and other biological fluids |
| Repeatability: | CV < 15% |
| Specificity: | This kit recognizes Human LEPR in samples. No significant cross-reactivity or interference between Human LEPR and analogues was observed. |
This kit uses Sandwich-CLIA as the method. The micro CLIA plate provided in this kit has been pre-coated with an antibody specific to Human LEPR. Standards or samples are added to the appropriate micro CLIA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human LEPR and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well successively and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human LEPR, biotinylated detection antibody and Avidin-HRP conjugate will appear fluorescence. The Relative light unit (RLU) value is measured spectrophotometrically by the Chemiluminescence immunoassay analyzer. The RLU value is positively associated with the concentration of Human LEPR. The concentration of Human LEPR in the samples can be calculated by comparing the RLU of the samples to the standard curve.
| UniProt Protein Function: | LEPR: the receptor for leptin (obesity factor). A single-transmembrane-domain receptor of the cytokine receptor family. On ligand binding, mediates signaling through JAK2/STAT3. Involved in the regulation of fat metabolism and, in a hematopoietic pathway, required for normal lymphopoiesis. May play a role in reproduction. Five alternatively spliced transcript variants have been reported. |
| UniProt Protein Details: | Protein type:Receptor, cytokine; Membrane protein, integral Chromosomal Location of Human Ortholog: 1p31 Cellular Component: plasma membrane; extracellular region; integral to membrane; receptor complex Molecular Function:hematopoietin/interferon-class (D200-domain) cytokine receptor activity; identical protein binding; protein binding; transmembrane receptor activity Biological Process: cholesterol metabolic process; cell surface receptor linked signal transduction; negative regulation of gluconeogenesis; multicellular organismal development; cytokine and chemokine mediated signaling pathway; negative regulation of hydrolase activity; energy reserve metabolic process Disease: Leptin Receptor Deficiency |
| NCBI Summary: | The protein encoded by this gene belongs to the gp130 family of cytokine receptors that are known to stimulate gene transcription via activation of cytosolic STAT proteins. This protein is a receptor for leptin (an adipocyte-specific hormone that regulates body weight), and is involved in the regulation of fat metabolism, as well as in a novel hematopoietic pathway that is required for normal lymphopoiesis. Mutations in this gene have been associated with obesity and pituitary dysfunction. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. It is noteworthy that this gene and LEPROT gene (GeneID:54741) share the same promoter and the first 2 exons, however, encode distinct proteins (PMID:9207021). [provided by RefSeq, Nov 2010] |
| UniProt Code: | P48357 |
| NCBI GenInfo Identifier: | 116242617 |
| NCBI Gene ID: | 3953 |
| NCBI Accession: | P48357. 2 |
| UniProt Secondary Accession: | P48357,Q13592, Q13593, Q13594, Q92919, Q92920, Q92921 |
| UniProt Related Accession: | P48357 |
| Molecular Weight: | 96,042 Da |
| NCBI Full Name: | Leptin receptor |
| NCBI Synonym Full Names: | leptin receptor |
| NCBI Official Symbol: | LEPR |
| NCBI Official Synonym Symbols: | OBR; OB-R; CD295; LEP-R; LEPRD |
| NCBI Protein Information: | leptin receptor; huB219; OB receptor |
| UniProt Protein Name: | Leptin receptor |
| UniProt Synonym Protein Names: | HuB219; OB receptor; OB-R; CD_antigen: CD295 |
| Protein Family: | Leptin receptor |
| UniProt Gene Name: | LEPR |
| UniProt Entry Name: | LEPR_HUMAN |
As the RLU values of the standard curve may vary according to the conditions of the actual assay performance (e. g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.
| Concentration (pg/mL) | RLU | Average | Corrected |
| 5000 | 58195 64317 | 61256 | 61233 |
| 2500 | 31273 37435 | 34354 | 34331 |
| 1250 | 19727 16611 | 18169 | 18146 |
| 625 | 8978 9806 | 9392 | 9369 |
| 312.5 | 4988 4678 | 4833 | 4810 |
| 156.25 | 2531 2491 | 2511 | 2488 |
| 78.13 | 1309 1369 | 1339 | 1316 |
| 0 | 22 24 | 23 | -- |
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human LEPR were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human LEPR were tested on 3 different plates, 20 replicates in each plate.
| Intra-assay Precision | Inter-assay Precision | |||||
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean (pg/mL) | 250.13 | 716.79 | 2092.88 | 271.52 | 657.86 | 2086.95 |
| Standard deviation | 23.71 | 67.95 | 156.55 | 33.37 | 48.16 | 218.29 |
| C V (%) | 9.48 | 9.48 | 7.48 | 12.29 | 7.32 | 10.46 |
Recovery
The recovery of Human LEPR spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.
| Sample Type | Range (%) | Average Recovery (%) |
| Serum (n=5) | 95-112 | 103 |
| EDTA plasma (n=5) | 98-114 | 105 |
| Cell culture media (n=5) | 92-104 | 98 |
Linearity
Samples were spiked with high concentrations of Human LEPR and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
| 1:2 | Range (%) | 102-115 | 102-120 | 86-98 |
| Average (%) | 109 | 110 | 91 | |
| 1:4 | Range (%) | 101-119 | 95-108 | 91-102 |
| Average (%) | 109 | 100 | 97 | |
| 1:8 | Range (%) | 99-115 | 86-98 | 94-106 |
| Average (%) | 105 | 92 | 99 | |
| 1:16 | Range (%) | 87-102 | 86-101 | 102-118 |
| Average (%) | 93 | 93 | 109 |
An unopened kit can be stored at 4°C for 1 month. If the kit is not used within 1 month, store the items separately according to the following conditions once the kit is received.
| Item | Specifications | Storage |
| Micro CLIA Plate(Dismountable) | 8 wells ×12 strips | -20°C, 6 months |
| Reference Standard | 2 vials | |
| Concentrated Biotinylated Detection Ab (100×) | 1 vial, 120 µL | |
| Concentrated HRP Conjugate (100×) | 1 vial, 120 µL | -20°C(shading light), 6 months |
| Reference Standard & Sample Diluent | 1 vial, 20 mL | 4°C, 6 months |
| Biotinylated Detection Ab Diluent | 1 vial, 14 mL | |
| HRP Conjugate Diluent | 1 vial, 14 mL | |
| Concentrated Wash Buffer (25×) | 1 vial, 30 mL | |
| Substrate Reagent A | 1 vial, 5 mL | 4°C (shading light) |
| Substrate Reagent B | 1 vial, 5 mL | 4°C (shading light) |
| Plate Sealer | 5 pieces | |
| Product Description | 1 copy | |
| Certificate of Analysis | 1 copy |
- Set standard, test sample and control (zero) wells on the pre-coated plate and record theirpositions. It is recommended to measure each standard and sample in duplicate. Note: addall solutions to the bottom of the plate wells while avoiding contact with the well walls. Ensuresolutions do not foam when adding to the wells.
- Aliquot 100µl of standard solutions into the standard wells.
- Add 100µl of Sample / Standard dilution buffer into the control (zero) well.
- Add 100µl of properly diluted sample (serum, plasma, tissue homogenates and otherbiological fluids. ) into test sample wells.
- Cover the plate with the sealer provided in the kit and incubate for 90 min at 37°C.
- Aspirate the liquid from each well, do not wash. Immediately add 100µL of BiotinylatedDetection Ab working solution to each well. Cover the plate with a plate seal and gently mix. Incubate for 1 hour at 37°C.
- Aspirate or decant the solution from the plate and add 350µL of wash buffer to each welland incubate for 1-2 minutes at room temperature. Aspirate the solution from each well andclap the plate on absorbent filter paper to dry. Repeat this process 3 times. Note: a microplatewasher can be used in this step and other wash steps.
- Add 100µL of HRP Conjugate working solution to each well. Cover with a plate seal andincubate for 30 min at 37°C.
- Aspirate or decant the solution from each well. Repeat the wash process for five times asconducted in step 7.
- Add 100µL of Substrate mixture solution to each well. Cover with a new plate seal andincubate for no more than 5 min at 37°C. Protect the plate from light.
- Determine the RLU value of each well immediately.
Related Products
Human LEPR (Leptin Receptor) ELISA Kit
Mouse LEPR (Leptin Receptor) ELISA Kit
