Description
Human Tyrosine-protein kinase JAK3 (JAK3) ELISA Kit
The Human Tyrosine Protein Kinase JAK3 ELISA Kit is specifically designed to accurately detect levels of JAK3 protein in human serum, plasma, and cell culture supernatants. This kit offers exceptional sensitivity and specificity, ensuring precise and consistent results for a variety of research purposes.JAK3, a tyrosine protein kinase, plays a pivotal role in the regulation of immune responses and inflammatory processes. Dysregulation of JAK3 has been linked to autoimmune diseases, leukemia, and other hematological disorders, making it a critical biomarker for studying these conditions and exploring therapeutic interventions.
With its advanced technology and reliable performance, the Human Tyrosine Protein Kinase JAK3 ELISA Kit is an essential tool for researchers seeking a deeper understanding of JAK3 function and its implications in human health and disease.
| Product Name: | Human Tyrosine-protein kinase JAK3 (JAK3) ELISA Kit |
| SKU: | HUEB0659 |
| Size: | 96T |
| Target: | Human Tyrosine-protein kinase JAK3 (JAK3) |
| Synonyms: | Janus kinase 3, Leukocyte janus kinase, JAK-3, L-JAK |
| Assay Type: | Sandwich |
| Detection Method: | ELISA |
| Reactivity: | Human |
| Detection Range: | 78-5000pg/mL |
| Sensitivity: | 36pg/mL |
| Intra CV: | 4.3% | ||||||||||||||||||||
| Inter CV: | 8.6% | ||||||||||||||||||||
| Linearity: |
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| Recovery: |
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| Function: | Non-receptor tyrosine kinase involved in various processes such as cell growth, development, or differentiation. Mediates essential signaling events in both innate and adaptive immunity and plays a crucial role in hematopoiesis during T-cells development. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors sharing the common subunit gamma such as IL2R, IL4R, IL7R, IL9R, IL15R and IL21R. Following ligand binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins. Subsequently, phosphorylates the STATs proteins once they are recruited to the receptor. Phosphorylated STATs then form homodimer or heterodimers and translocate to the nucleus to activate gene transcription. For example, upon IL2R activation by IL2, JAK1 and JAK3 molecules bind to IL2R beta (IL2RB) and gamma chain (IL2RG) subunits inducing the tyrosine phosphorylation of both receptor subunits on their cytoplasmic domain. Then, STAT5A AND STAT5B are recruited, phosphorylated and activated by JAK1 and JAK3. Once activated, dimerized STAT5 translocates to the nucleus and promotes the transcription of specific target genes in a cytokine-specific fashion. |
| Uniprot: | P52333 |
| Sample Type: | Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids |
| Specificity: | Natural and recombinant human Tyrosine-protein kinase JAK3 |
| Sub Unit: | Interacts with STAM2 and MYO18A (By similarity). Interacts with SHB. |
| Research Area: | Signal Transduction |
| Subcellular Location: | Endomembrane system Peripheral membrane protein Cytoplasm |
| Storage: | Please see kit components below for exact storage details |
| Note: | For research use only |
| UniProt Protein Function: | JAK3: a non-receptor tyrosine-kinase of the Jak family expressed predominantly in immune cells. Mediates signal transduction via the common gamma-chain of cytokine receptors, including IL-2, -4, -7, -9, and -15. Interacts with members of the STAT (signal transduction and activators of transcription) family. Interacts with STAM2 and SHB. Contains two protein kinase domains. Mutations that abrogate JAK3 function cause an autosomal SCID (severe combined immunodeficiency disease). Inhibitor: R017s for organ transplants. Three differentially spliced isoforms have been described. |
| UniProt Protein Details: | Protein type:EC 2.7.10.2; Protein kinase, tyrosine (non-receptor); Protein kinase, TK; Kinase, protein; TK group; JakA family Chromosomal Location of Human Ortholog: 19p13.1 Cellular Component: cytoskeleton; cytosol; endomembrane system; extrinsic to internal side of plasma membrane Molecular Function:ATP binding; non-membrane spanning protein tyrosine kinase activity; protein binding; protein phosphatase binding; protein-tyrosine kinase activity; Ras guanyl-nucleotide exchange factor activity; receptor binding Biological Process: adaptive immune response; B cell differentiation; cell migration; elevation of cytosolic calcium ion concentration; enzyme linked receptor protein signaling pathway; innate immune response; MAPKKK cascade; negative regulation of dendritic cell cytokine production; negative regulation of FasL biosynthetic process; negative regulation of interleukin-10 production; negative regulation of interleukin-12 production; negative regulation of T cell activation; negative regulation of T-helper 1 cell differentiation; peptidyl-tyrosine phosphorylation; positive regulation of activated T cell proliferation; positive regulation of calcium ion transport; positive regulation of GTPase activity; positive regulation of immune response; positive regulation of T cell proliferation; protein amino acid phosphorylation; STAT protein nuclear translocation; T cell homeostasis; tyrosine phosphorylation of STAT protein; tyrosine phosphorylation of Stat5 protein Disease: Severe Combined Immunodeficiency, Autosomal Recessive, T Cell-negative, B Cell-positive, Nk Cell-negative |
| NCBI Summary: | The protein encoded by this gene is a member of the Janus kinase (JAK) family of tyrosine kinases involved in cytokine receptor-mediated intracellular signal transduction. It is predominantly expressed in immune cells and transduces a signal in response to its activation via tyrosine phosphorylation by interleukin receptors. Mutations in this gene are associated with autosomal SCID (severe combined immunodeficiency disease). [provided by RefSeq, Jul 2008] |
| UniProt Code: | P52333 |
| NCBI GenInfo Identifier: | 50403745 |
| NCBI Gene ID: | 3718 |
| NCBI Accession: | P52333.2 |
| UniProt Secondary Accession: | P52333,Q13259, Q13260, Q13611, Q8N1E8, Q99699, Q9Y6S2 |
| UniProt Related Accession: | P52333 |
| Molecular Weight: | |
| NCBI Full Name: | Tyrosine-protein kinase JAK3 |
| NCBI Synonym Full Names: | Janus kinase 3 |
| NCBI Official Symbol: | JAK3 |
| NCBI Official Synonym Symbols: | JAKL; LJAK; JAK-3; L-JAK; JAK3_HUMAN |
| NCBI Protein Information: | tyrosine-protein kinase JAK3 |
| UniProt Protein Name: | Tyrosine-protein kinase JAK3 |
| UniProt Synonym Protein Names: | Janus kinase 3; JAK-3; Leukocyte janus kinase; L-JAK |
| Protein Family: | Tyrosine-protein kinase |
| UniProt Gene Name: | JAK3 |
| UniProt Entry Name: | JAK3_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. |
