Human JAK2 (Tyrosine-Protein Kinase Jak2) - Recombinant Protein

Beta LifeScience SKU/CAT #: BLT-01601P
SDS-PAGE analysis of Human JAK2 (Tyrosine-Protein Kinase Jak2) - Recombinant Protein, CAT
SDS-PAGE analysis of Human JAK2 (Tyrosine-Protein Kinase Jak2) - Recombinant Protein, CAT# BLT-01601P, showing >95% purity under 15% SDS-PAGE (Reduced)

Human JAK2 (Tyrosine-Protein Kinase Jak2) - Recombinant Protein

Beta LifeScience SKU/CAT #: BLT-01601P
Regular price $595.00 Sale price $445.00Save $150
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Pack Size Price (USD)
500 µg $1,030 (Fall Promotion)
1 mg $1,870 (Fall Promotion)

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Product Overview

Product Name Recombinant Human Janus Kinase 2 (JAK2) Protein
Product Overview This recombinant human Janus Kinase 2 (JAK2) protein includes amino acids 508-800aa of the target gene is expressed in E.coli.The protein is supplied in lyophilized form and formulated in phosphate buffered saline (pH7.4) containing 0.01% sarcosyl, 5% trehaloseprior to lyophilization.
Target Uniprot Id O60674
Recommended Name Tyrosine-protein kinase JAK2
Gene Name JAK2
Synonyms Janus kinase 2, Janus kinase 2 (a protein tyrosine kinase), JTK10
Species Human
Predicted Molecular Mass 35 kDa
Expression System E.coli
Expression Range 508-800aa
Tag N-6His
Purity >95%
Formulation Lyophilized
Buffer Phosphate buffered saline (pH7.4) containing 0.01% sarcosyl, 5%Trehalose
Storage Condition 1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Reconstitution Instruction Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Applications Positive Control; Immunogen; SDS-PAGE; WB
Research Area Immunology
Target Function Non-receptor tyrosine kinase involved in various processes such as cell growth, development, differentiation or histone modifications. Mediates essential signaling events in both innate and adaptive immunity. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors such as growth hormone (GHR), prolactin (PRLR), leptin (LEPR), erythropoietin (EPOR), thrombopoietin (THPO); or type II receptors including IFN-alpha, IFN-beta, IFN-gamma and multiple interleukins. 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, cell stimulation with erythropoietin (EPO) during erythropoiesis leads to JAK2 autophosphorylation, activation, and its association with erythropoietin receptor (EPOR) that becomes phosphorylated in its cytoplasmic domain. Then, STAT5 (STAT5A or STAT5B) is recruited, phosphorylated and activated by JAK2. Once activated, dimerized STAT5 translocates into the nucleus and promotes the transcription of several essential genes involved in the modulation of erythropoiesis. Part of a signaling cascade that is activated by increased cellular retinol and that leads to the activation of STAT5 (STAT5A or STAT5B). In addition, JAK2 mediates angiotensin-2-induced ARHGEF1 phosphorylation. Plays a role in cell cycle by phosphorylating CDKN1B. Cooperates with TEC through reciprocal phosphorylation to mediate cytokine-driven activation of FOS transcription. In the nucleus, plays a key role in chromatin by specifically mediating phosphorylation of 'Tyr-41' of histone H3 (H3Y41ph), a specific tag that promotes exclusion of CBX5 (HP1 alpha) from chromatin.
Subcellular Location Endomembrane system; Peripheral membrane protein. Cytoplasm. Nucleus.
Protein Family Protein kinase superfamily, Tyr protein kinase family, JAK subfamily
Associated Diseases Budd-Chiari syndrome (BDCHS); Polycythemia vera (PV); Thrombocythemia 3 (THCYT3); Myelofibrosis (MYELOF); Leukemia, acute myelogenous (AML)
Tissue Specificity Ubiquitously expressed throughout most tissues.

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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