Recombinant Mouse Signal transducer and activator of transcription 3 (Stat3)

Code CSB-YP022812MO
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Source Yeast
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Code CSB-EP022812MO
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Source E.coli
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Code CSB-EP022812MO-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP022812MO
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Source Baculovirus
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Code CSB-MP022812MO
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Source Mammalian cell
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Product Details

>85% (SDS-PAGE)
Target Names
Uniprot No.
Alternative Names
Stat3; Aprf; Signal transducer and activator of transcription 3; Acute-phase response factor
Mus musculus (Mouse)
Expression Region
Target Protein Sequence
Protein Length
Full length protein
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Please contact us to get it.

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Target Background

Signal transducer and transcription activator that mediates cellular responses to interleukins, KITLG/SCF, LEP and other growth factors. Once activated, recruits coactivators, such as NCOA1 or MED1, to the promoter region of the target gene. May mediate cellular responses to activated FGFR1, FGFR2, FGFR3 and FGFR4. Upon activation of IL6ST/gp130 signaling by interleukin-6 (IL6), binds to the IL6-responsive elements identified in the promoters of various acute-phase protein genes. Activated by IL31 through IL31RA. Acts as a regulator of inflammatory response by regulating differentiation of naive CD4(+) T-cells into T-helper Th17 or regulatory T-cells (Treg): deacetylation and oxidation of lysine residues by LOXL3, leads to disrupt STAT3 dimerization and inhibit its transcription activity. Involved in cell cycle regulation by inducing the expression of key genes for the progression from G1 to S phase, such as CCND1. Mediates the effects of LEP on melanocortin production, body energy homeostasis and lactation. May play an apoptotic role by transctivating BIRC5 expression under LEP activation. Cytoplasmic STAT3 represses macroautophagy by inhibiting EIF2AK2/PKR activity. Plays a crucial role in basal beta cell functions, such as regulation of insulin secretion. Plays an important role in host defense in methicillin-resistant S.aureus lung infection by regulating the expression of the antimicrobial lectin REG3G.
Gene References into Functions
  1. Notch signaling regulates cell density-dependent apoptosis through IL-6/STAT3-dependent mechanism. PMID: 30249464
  2. Act1 is a negative regulator in T and B cells via direct inhibition of STAT3. PMID: 30013031
  3. Data show that adult mammalian cardiomyocytes restore regenerative capacity with cell cycle reentry through STAT3 as the heart recovers from myocarditis-induced cardiac damage. PMID: 28469272
  4. Genetic or pharmacologic inactivation of SHP2 promotes accumulation of JAK2 phosphorylated at Y570, reduces JAK2/STAT3 signaling, inhibits TGFbeta-induced fibroblast activation and ameliorates dermal and pulmonary fibrosis. PMID: 30108215
  5. IL-6/Stat3 signaling drives a transcriptional program of antimicrobial gene expression in infected urothelium, with key roles in limiting epithelial invasion and ascending infection. PMID: 29475562
  6. IL-6 and STAT3 have roles in potentiating FGF19-driven hepatocellular carcinoma (HCC) in mice; this finding may have translational relevance in HCC pathogenesis PMID: 28508871
  7. Study indicated that Stat3 was involved in the negative regulation of Vegf expression by miR20b in mouse H22 hepatocellular carcinoma cells. PMID: 30132576
  8. IL-6-STAT3 signaling facilitates TRIM28 binding to the Il17-Il17f locus, and this process is required for epigenetic activation and high-order chromosomal interaction in autoimmune experimental encephalomyelitis. PMID: 29651155
  9. obesity affects cardiac function and leads to cardiac injury. Furthermore, myocardial injury in obese mice during sepsis may occur through alteration of the STAT3 pathway. PMID: 28625915
  10. inhibition of autophagy contributes to accumulation and immunosuppressive function of Myeloid-derived suppressor cells (MDSCs)by promoting the activation of STAT3 signaling, suggesting that autophagy may play a critical role in regulating accumulation and activity of MDSCs. PMID: 28802852
  11. Selective inhibition or knockdown of Rac1 decreased IL-6 and IL-8 release in 16HBE cells induced by cigarette smoke extract (CSE), which correlated with CSE-induced Rac1-regulated Erk1/2 mitogen-activated protein kinase (MAPK) and signal transducer and activator of transcription-3 (STAT3) signaling. PMID: 28428003
  12. virus infection with enterovirus 71 and H1N1 PR8 influenza virus results in increased FPR2 expression. Inhibition of STAT3 phosphorylation in virus-infected cells repressed the induction of FPR2, which led to a reduction in viral loads. PMID: 29127186
  13. HO-1 enhanced STAT3 phosphorylation, which enriched to Il12b and Il23a loci and negatively regulated their transcription. These findings demonstrate the underlying mechanism through which a nutritional can interfere with the immune response. CUR silences IL-23/Th17-mediated pathology by enhancing HO-1/STAT3 interaction in dendritic cells. PMID: 28290522
  14. Stat3 role in the the ureter obstruction induced renal fibrosis. PMID: 29723529
  15. p53 induces miR199a-3p to suppress SOCS7 for STAT3 activation and renal fibrosis in unilateral urethral obstruction. PMID: 28240316
  16. The expression of STAT3 in J774A.1 cells confirmed that these cells are M2 macrophage. Moreover, silencing of STAT3 by siRNA delivery using oligofectamine delivery suggests that siRNA delivery using vehicles like nanoliposome could be a useful therapeutic agent in M2 macrophage therapy and its switch to M1 macrophages PMID: 30197360
  17. These findings indicate that embelin inhibits abdominal aortic aneurysm through decreasing IL6induced STAT3, and NFkappaB inactivation. PMID: 29956759
  18. Protective role for STAT3 in the hematopoietic system is mediated by STAT3-dependent restraint of excessive proinflammatory signaling via Ubc13 modulation. PMID: 29463696
  19. The authors conclude that Mycobacterium tuberculosis ESAT-6 stimulates macrophage IL-6 production through STAT3 activation. PMID: 28106119
  20. These results suggest that the inhibition of IL6/STAT3 signaling is a potential mechanism by which PZH is used in the treatment of ulcerative colitis. PMID: 29845215
  21. these data showed that CK induced ERS and apoptosis by inhibiting p-STAT3 in human liver cancer cells; thus, CK might be a potential therapeutic candidate for human HCC. PMID: 29921768
  22. Study showed that Mig-6 has an important function of tumor suppressor via inhibition of STAT3 phosphorylation in uterine epithelial cells, and the antitumor effects of progesterone are mediated by the endometrial stroma. PMID: 28925396
  23. results suggest that IL-6 gene requires up-regulation of phospho-JAK2/STAT3, PACAP, and PAC1R and down-regulation of the TNF-alpha gene to modulate its anticonvulsive/neuroprotective potential PMID: 29673861
  24. IL-33 may down-regulate CLDN1 expression through the ERK/STAT3 pathway in keratinocytes. PMID: 29534857
  25. ephrin type-B receptor 1 (EphB1) is upregulated in injured motor neurons, which in turn can activate astrocytes through ephrin-B1-mediated stimulation of signal transducer and activator of transcription-3 (STAT3) PMID: 29079839
  26. TRYP improves the health condition of mice with DSS induced colitis by regulating the TNF-α/NF-κBp65 and IL-6/STAT3 signaling pathways via inhibiting the degradation of IκBα and the phosphorylation of STAT3. PMID: 29724065
  27. Stat3 role in a regulatory module in inflammatory signaling. PMID: 29185442
  28. Data identify a novel role for phospholipid phosphate phosphatase type 1 activity and hepatocyte lysophosphatidic acid levels in glucagon sensitivity via a mechanism involving STAT3. PMID: 28273928
  29. In the Title. PMID: 27423495
  30. MicroRNA-125a-5p mediates preadipocyte proliferation and differentiation by negatively regulating STAT3. PMID: 29393878
  31. Blockade of JAK1-JAK3 accelerated, and selective inactivation of STAT3 decelerated differentiation of progenitor cells. PMID: 29308566
  32. KMT1A positively regulated the self-renewal and tumorigenicity of human Bladder cancer stem cells via KMT1A-GATA3-STAT3 circuit, in which KMT1A could be a promising target for bladder cancer therapy. PMID: 28765327
  33. these findings suggest that the endothelial STAT3 signaling plays an important role in limiting kidney dysfunction in ischemic acute kidney injury PMID: 29181415
  34. The result also reveals that Stat3 may be a crucial link between the induction of the four factors and the cell remodeling, suggesting its potential role as a target to fight melanoma. PMID: 29200954
  35. Treatment with nifuroxazide inhibited the activation of STAT3, resulting in the regulation of the CD4+ T cells and CD4+CD25+ T cells and reduction of interferongamma and tumor necrosis factora levels PMID: 29152660
  36. STAT3 restrained cytotoxic gene expression in CD8+ T cells responding to viral infection in vivo. PMID: 29180433
  37. STAT3 signalling in myeloid cells is deleterious in the control of infection with Mycobacterium tuberculosis. PMID: 29338039
  38. It has been observed that PTEN expression downregulated by p53 deficiency induced the activation of STAT3 in autoimmune arthritis. PMID: 27708408
  39. The therapeutic function of HtrA2 in inflammatory diseases is linked with Th17 development and the STAT3 pathway in splenocytes. PMID: 28008946
  40. Our data suggest that HO-1 exerts its inhibitory effect on Th17 cell differentiation by directly associating and blocking STAT3 phosphorylation. We speculate that hemin may be a potential therapeutic candidate for the treatment of other types of immune and pulmonary inflammatory-related diseases. PMID: 28580587
  41. reduced expression of STAT3 in myeloid cells from the hosts, but not the donors, increased inflammation, increased donor T cell activation, and exacerbated GVHD demonstrating that STAT3 in host myeloid cells, such as macrophages, dampens acute GVHD. PMID: 28694183
  42. Suggest caution for the proposed therapeutic strategy of combined signal transducer and activator of transcription/epidermal growth factor receptor inhibition for cancer treatment with respect to cardiotoxity. PMID: 29051215
  43. STAT3 may regulate hepatocyte proliferation as well as transdifferentiation into cholangiocytes and serve as a therapeutic target for hepatocellular carcinoma inhibition and biliary regeneration. PMID: 29085226
  44. Smad7 enables STAT3 activation and promotes pluripotency independent of TGF-beta signaling. PMID: 28874583
  45. Reg3g acts as an immunosuppressive promoter by activating the JAK2/STAT3 signaling pathway in dendritic cells and triggering the generation of an immunosuppressive tumor microenvironment. PMID: 28880262
  46. mPGES-1-derived prostaglandin E2 stimulates Stat3 to promote podocyte apoptosis. PMID: 28879567
  47. TGF-beta1-mediated hyaluronan/CD44/STAT3 signaling pathway plays a crucial role in the development of atrial fibrosis and atrial fibrillation. PMID: 28871329
  48. High STAT3 expression is associated with skeletal muscle wasting in cancer cachexia. PMID: 28489606
  49. Advanced glycation end products induce apoptosis and inflammation in mouse podocytes through CXCL9-mediated JAK2/STAT3 pathway activation. PMID: 28849106
  50. Cilostazol protects MIR injury by activating a PPARgamma/JAK2/STAT3 pathway. PMID: 28810537

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Subcellular Location
Cytoplasm. Nucleus.
Protein Families
Transcription factor STAT family
Tissue Specificity
STAT3A is seen in the liver, spleen, and kidney. STAT3B is also detected in the liver, although in a much less abundant manner. Expressed in the lung and an increase in expression levels seen during methicillin-resistant S.aureus infection.
Database Links
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