Description
Mouse Leukemia inhibitory factor receptor (Lifr) ELISA Kit
The Mouse Leukemia Inhibitory Factor Receptor (LIFR) ELISA Kit is specifically designed for the accurate detection of LIFR levels in mouse serum, plasma, and cell culture supernatants. With its high sensitivity and specificity, this kit ensures reliable and reproducible results, making it suitable for a variety of research applications.LIFR is a critical component in the regulation of cell growth and differentiation, playing a key role in various biological processes.
Dysregulation of LIFR has been associated with conditions such as leukemia, immune disorders, and inflammatory diseases, making it an important biomarker for investigating these conditions and potential therapeutic interventions.Overall, the Mouse LIFR ELISA Kit provides researchers with a valuable tool for studying the role of LIFR in physiological and pathological processes, offering insights into disease mechanisms and potential treatment strategies.
| Product Name: | Mouse Leukemia inhibitory factor receptor (Lifr) ELISA Kit |
| SKU: | MOEB0453 |
| Size: | 96T |
| Target: | Mouse Leukemia inhibitory factor receptor (Lifr) |
| Synonyms: | D-factor/LIF receptor, CD118, LIF receptor |
| Assay Type: | Sandwich |
| Detection Method: | ELISA |
| Reactivity: | Mouse |
| Detection Range: | 6.25-400pg/mL |
| Sensitivity: | 3.215pg/mL |
| Intra CV: | Provided with the Kit |
| Inter CV: | Provided with the Kit |
| Linearity: | Provided with the Kit |
| Recovery: | Provided with the Kit |
| Function: | Signal-transducing molecule. May have a common pathway with IL6ST. The soluble form inhibits the biological activity of LIF by blocking its binding to receptors on target cells. |
| Uniprot: | P42703 |
| Sample Type: | Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids |
| Specificity: | Natural and recombinant mouse Leukemia inhibitory factor receptor |
| Sub Unit: | Heterodimer composed of LIFR and IL6ST. The heterodimer formed by LIFR and IL6ST interacts with the complex formed by CNTF and CNTFR. |
| Research Area: | Immunology |
| Subcellular Location: | Isoform 2 Secreted |
| Storage: | Please see kit components below for exact storage details |
| Note: | For research use only |
| UniProt Protein Function: | LIFR: Signal-transducing molecule. May have a common pathway with IL6ST. The soluble form inhibits the biological activity of LIF by blocking its binding to receptors on target cells. Defects in LIFR are the cause of Stueve-Wiedemann syndrome (SWS); also knowns as Schwartz-Jampel syndrome type 2 (SJS2). SWS is a severe autosomal recessive condition and belongs to the group of the bent-bone dysplasias. SWS is characterized by bowing of the lower limbs, with internal cortical thickening, wide metaphyses with abnormal trabecular pattern, and camptodactyly. Additional features include feeding and swallowing difficulties, as well as respiratory distress and hyperthermic episodes, which cause death in the first months of life. The rare survivors develop progressive scoliosis, spontaneous fractures, bowing of the lower limbs, with prominent joints and dysautonomia symptoms, including temperature instability, absent corneal and patellar reflexes, and smooth tongue. A chromosomal aberration involving LIFR is found in salivary gland pleiomorphic adenomas, the most common benign epithelial tumors of the salivary gland. Translocation t(5;8)(p13;q12) with PLAG1. Belongs to the type I cytokine receptor family. Type 2 subfamily. 2 isoforms of the human protein are produced by alternative splicing. |
| UniProt Protein Details: | Protein type:Membrane protein, integral; Receptor, cytokine Chromosomal Location of Human Ortholog: 15 A1|15 3.46 cM Cellular Component: extracellular exosome; extracellular region; extracellular space; integral component of membrane; membrane; plasma membrane; receptor complex Molecular Function:ciliary neurotrophic factor receptor activity; ciliary neurotrophic factor receptor binding; cytokine binding; growth factor binding; hematopoietin/interferon-class (D200-domain) cytokine receptor activity; leukemia inhibitory factor receptor activity; oncostatin-M receptor activity; protein binding; protein heterodimerization activity Biological Process: ciliary neurotrophic factor-mediated signaling pathway; cytokine-mediated signaling pathway; leukemia inhibitory factor signaling pathway; negative regulation of muscle cell apoptotic process; neuron projection morphogenesis; oncostatin-M-mediated signaling pathway; organ regeneration; positive regulation of cell proliferation; response to cytokine |
| UniProt Code: | P42703 |
| NCBI GenInfo Identifier: | 164664494 |
| NCBI Gene ID: | 16880 |
| NCBI Accession: | NP_001106857.1 |
| UniProt Secondary Accession: | P42703,Q5I0Y2, |
| UniProt Related Accession: | P42703 |
| Molecular Weight: | 81,287 Da |
| NCBI Full Name: | leukemia inhibitory factor receptor isoform 2 |
| NCBI Synonym Full Names: | leukemia inhibitory factor receptor |
| NCBI Official Symbol: | Lifr |
| NCBI Official Synonym Symbols: | LIF; AW061234; A230075M04Rik |
| NCBI Protein Information: | leukemia inhibitory factor receptor |
| UniProt Protein Name: | Leukemia inhibitory factor receptor |
| UniProt Synonym Protein Names: | D-factor/LIF receptor; CD_antigen: CD118 |
| Protein Family: | Leukemia inhibitory factor receptor |
| UniProt Gene Name: | Lifr |
| 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. |
