Recombinant Human Tyrosine-Protein Kinase Jak1 (JAK1) Protein (His)

Name: Recombinant Human Tyrosine-Protein Kinase Jak1 (JAK1) Protein (His)
Brand: Beta LifeScience
SKU: BLC-03993P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Tyrosine-Protein Kinase Jak1 (JAK1) Protein (His) is produced by our E.coli expression system. This is a protein fragment.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	P23458
Target Symbol	JAK1
Synonyms	JAK 1; JAK 1A; JAK 1B; JAK-1; JAK1; JAK1_HUMAN; JAK1A; JAK1B; Janus kinase 1 (a protein tyrosine kinase); Janus kinase 1; JTK3; Tyrosine protein kinase JAK 1; Tyrosine protein kinase JAK1; Tyrosine-protein kinase JAK1
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-6His
Target Protein Sequence	EQNPDIVSEKKPATEVDPTHFEKRFLKRIRDLGEGHFGKVELCRYDPEGDNTGEQVAVKSLKPESGGNHIADLKKEIEILRNLYHENIVKYKGICTEDGGNGIKLIMEFLPSGSLKEYLPKNKNKINLKQQLKYAVQICKGMDYLGSRQYVHRDLAARNVLVESEHQVKIGDFGLTKAIETDKEYYTVKDDRDSPVFWYAPECLMQSKFYIASDVWSFGVTLHELLTYCDSDSSPMALFLKMIGPTHGQMTVTRLVNTLKEGKRLPCPPNCPDEVYQLMRKCWEFQPSNRTSFQNLIEGFEALLK
Expression Range	850-1154aa
Protein Length	Partial
Mol. Weight	38.9kDa
Research Area	Cancer
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	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%.
Storage	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.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Tyrosine kinase of the non-receptor type, involved in the IFN-alpha/beta/gamma signal pathway. Kinase partner for the interleukin (IL)-2 receptor as well as interleukin (IL)-10 receptor. Directly phosphorylates STAT but also activates STAT signaling through the transactivation of other JAK kinases associated with signaling receptors.
Subcellular Location	Endomembrane system; Peripheral membrane protein. Note=Wholly intracellular, possibly membrane associated.
Protein Families	Protein kinase superfamily, Tyr protein kinase family, JAK subfamily
Database References	HGNC: 6190 OMIM: 147795 KEGG: hsa:3716 STRING: 9606.ENSP00000343204 UniGene: PMID: 28240233 Case Report: breast implant-associated anaplastic large cell lymphoma with dual JAK1/STAT3 mutations. PMID: 29637270 A small drug acting as a JAK1/2 inhibitor may also counteract the repressing effects of IL-6. PMID: 29162613 These findings clarify JAK1 signalling mechanisms and demonstrate a critical function of JAK1 in protection against mycobacterial infection and possibly the immunological surveillance of cancer. PMID: 28008925 In the Title. PMID: 27554814 Study concluded that JAK1 plays a role in the pathogenesis of both vitiligo and psoriasis based on its upregulated level before treatment and downregulated level after treatment. PMID: 29127481 High JAK1 expression is associated with metastasis of pancreatic ductal adenocarcinoma. PMID: 28677798 IL6 family cytokine oncostatin-M (OSM) induced a switch to the EMT phenotype and protected cells from targeted drug-induced apoptosis in OSM receptors (OSMRs)/JAK1/STAT3-dependent manner PMID: 28729401 Amorfrutin A also inhibited activation of the upstream kinases Janus-activated kinase 1 (JAK1), JAK2 and Src signaling pathways. PMID: 28879797 Jak1 is required for the survival of anaplastic large cell lymphoma.Jak1 mutations in anaplastic large cell lymphoma. PMID: 28356514 The good consonance between the docking results and CoMFA/CoMSIA contour maps provides helpful clues about the reasonable modification of molecules in order to design more efficient JAK 1 inhibitors. The developed models are expected to provide some directives for further synthesis of highly effective JAK 1 inhibitors. PMID: 28537140 Here we report a molecular mechanism by which JAK1 contributes to the malignant phenotype of activated B-cell diffuse large B-cell lymphoma (ABC DLBCL). Epigenetic regulation by JAK1 plays a prominent role in the gene expression program of ABC DLBCL cells by phosphorylating chromatin on H3Y41. The chromatin of nearly 3,000 genes had JAK1-dependent H3Y41 phosphorylation marks and required JAK1 for their expression. PMID: 27799566 miR-30e has a critical role in the suppression of hepatocellular carcinoma (HCC) and presents a novel mechanism of miRNA-mediated JAK1 expression in cancer cells that might be a good prognostic marker for survival of HCC patients. PMID: 28560434 We demonstrate that impaired recruitment of CD11b(+) myeloid cells with a JAK1/2 inhibitor inhibits glioma progression in vivo and prolongs survival in a murine glioma model. PMID: 28039266 Whole-exome sequencing on patients with acute lymphoblastic leukemia (ALL) and discovered a somatic JAK1 S646P mutation. Functional studies demonstrated that only JAK1 S646P mutation could activate multiple signaling pathways, drive cytokine-independent cell growth, and promote proliferation of malignant cells in nude mice. PMID: 28410228 we have identified acquired activating mutations in JAK1 and STAT3 in two cases of effusion-limited BIA-ALCL and identified a possible contribution to disease development from a germline JAK3 variant. PMID: 27198716 JAK1 mutations are highly frequent in microsatellite unstable endometrial cancer, not associated with survival, but are associated with impaired upregulation of LMP7 and HLA class I and may therefore facilitate immune escape PMID: 27213585 We found that a significant higher gastric cancer risk was associated with IL-6 rs2069837G variant genotypes and JAK1 rs2230587A variant genotypes PMID: 27049718 6-Hydroxy-3-O-methyl-kaempferol 6-O-glucopyranoside potentiated the inhibitory effect of IFN-alpha on hepatocellular carcinoma cell proliferation through activation of the JAK/STAT signaling pathway by inhibiting SOCS3 expression. PMID: 29031523 JAK1 frameshifts are loss of function alterations that represent a potential pan-cancer adaptation to immune responses against tumors with microsatellite instability PMID: 29121062 Study provides evidence that JAK1/2 loss-of-function mutations are a genetic mechanism of lack of reactive PD-L1 expression and response to interferon gamma, leading to primary resistance to PD-1 blockade therapy. PMID: 27903500 This study demonstrates that the nuclear import of JAK1 is essential for the optimal fitness of ABC DLBCL cells. PMID: 28031410 JAK1 rs11576173 and rs1497056 genotypes were significantly related to severe necroinflammatory activity (NIA) grade of chronic hepatitis C patients. PMID: 28704535 Multiple myeloma cells over express JAK1/2 and suggest combined chemotherapy with ruxolitinib, bortezomib and lenalidomide to inhibit JAK/STAT pathway. PMID: 28645562 Mechanistic investigations reveal that AJUBA specifically binds the FERM domain of JAK1 to dissociate JAK1 from the IFNgamma recepter, resulting in an inhibition of STAT1 phosporylation and concomitantly its nuclear translocation. Clinically, the level of AJUBA in CRC specimens is negatively correlated with the levels of IFIT2 and pSTAT1 PMID: 27893714 Multilevel genomic analyses of microsatellite instability+ colorectal cancer revealed molecular heterogeneity with clinical relevance, including tumor immunogenicity and a favorable patient outcome associated with JAK1 mutations and the transcriptomic subgroup CMS1 PMID: 28539123 a causal relationship between MLH1-deficiency and incidence of oncogenic point mutations in tyrosine kinases driving cell transformation and acquired resistance to kinase-targeted cancer therapies, is reported. PMID: 27436342 Data show that moringin (GMG-ITC) had a limited inhibitory effect on IFNalpha-induced STAT1 and STAT2 activity, indicating differentially targeting JAK/STAT signaling pathways. PMID: 27304884 our studies highlight Jak1 as the first identified substrate for USP6, and they offer a mechanistic rationale for the clinical investigation of Jak and STAT3 inhibitors as therapeutics for the treatment of bone and soft tissue tumors along with other neoplasms driven by USP6 overexpression PMID: 27440725 In this structure, the receptor peptide forms an 85-A-long extended chain, in which both the previously identified box1 and box2 regions bind simultaneously to the FERM and SH2-like domains of JAK1. PMID: 27725180 Results reveal the structure of box1 from class II cytokine receptors IFNLR1 and IL10RA bound to the FERM-SH2 domain of human JAK1, identifying a consensus motif for JAK1 interaction. PMID: 27133025 study demonstrated that miR-9 could inhibit activation of the NLRP3 inflammasome and attenuate atherosclerosis-related inflammation, likely through the JAK1/STAT1 signaling pathway. Therefore, miR-9 may serve as a potential therapeutic target for atherosclerosis. PMID: 28334721 miR-340 suppressed HCC cell proliferation and invasion by regulating the JAK1/STAT3 pathway PMID: 27998770 this study identifies a psoriasis-protective JAK1 haplotype in the Korean population PMID: 27774581 Data show that tight junction protein 1 (TJP1) suppressed expression of the catalytically proteasome subunits LMP7 and LMP2, decreased proteasome activity, and enhanced proteasome inhibitor sensitivity in vitro and in vivo through suppression of EGFR/JAK1/STAT3 signaling. PMID: 27132469 EGFR Del 19 may promote Fn14 and JAK1/STAT1 expression in NSCLC. PMID: 27350337 Piperlongumine reduced the phosphorylation of Janus kinase (JAK)1, JAK2 and signal transducer and activator of transcription (STAT)3 in a concentrationdependent manner PMID: 27053336 JAK1 rs310241 C-related genotype and allele are involved in AR susceptibility, making them potentially useful genetic biomarkers for allergic rhinitis susceptibility in the Chinese Han population. PMID: 27007833 Data show that astaxanthin functions as a potent inhibitor of A549 lung cancer cell growth by targeting Janus kinase 1 a(JAK1)/STAT3 transcription factor (STAT3) signaling pathway. PMID: 27371847 Genetic Variation in the JAK1 gene is associated with distal Colonic Disease, Stricturing Disease Behavior. PMID: 26937622 Activating JAK1 mutation may predict the sensitivity of JAK-STAT inhibition in hepatocellular carcinoma. PMID: 26701727 Foot-and-mouth disease virus VP3 interacted with JAK1/2, degraded JAK1, and inhibited the tyrosine phosphorylation, dimerization and nuclear accumulation of STAT1. PMID: 26901336 Data suggest that targeting both TGF-beta and Janus kinase 1 (JAK1) signaling could be explored therapeutically in pancreatic ductal adenocarcinomas (PDACs) patients whose cancers exhibit an angiogenesis gene signature. PMID: 26586478 When association tests were applied to data from the Diabetes Heart Study, it found exome variants of POMGNT1 and JAK1 genes were associated with type 2 diabetes. PMID: 26783077 Studies indicate that Janus kinase 1 (JAK1) inhibition leads to depression in inflammatory cytokine expression associated with MF-related constitutional symptoms. PMID: 25586607 Mutations leading to constitutive active gp130/JAK1/STAT3 pathway. PMID: 26188635 Increased expression of SgK223 occurs in PDAC, and overexpression of SgK223 in pancreatic ductal epithelial cells promotes acquisition of a migratory and invasive phenotype through enhanced JAK1/Stat3 signaling PMID: 26215634 Data show that IFN-lambda induced a faster but shorter expression of suppressor of cytokine signaling 1 (SOCS1) which inhibited Janus kinase/signal transducer and activator of transcription (Jak/STAT) pathway and phosphorylation. PMID: 26193702 Shp-2 contributes to the control of respiratory syncytial virus replication and progeny production in pulmonary alveolar epithelial cells by interfering with IFN-alpha-induced Jak/Stat1 pathway activation PMID: 26119280 Data show that JAK/STAT signaling inhibition is potentiated by Bcl-xL (B-cell lymphoma-extra large) blockade in interleukin 2 (IL-2) dependent adult T-cell leukemia cells. PMID: 26396258

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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.

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