Phospho-STAT3 (Tyr705) Monoclonal Antibody (LUVNKLA), PE-Cyanine7

货号：25-9033-41,25-9033-42

规格：25 Tests,100 Tests

价格：1442,3513

产品类型：流式抗体

品牌：eBioscience

物种：人/小鼠

宿主：小鼠

抗体亚型：IgG2b, kappa

克隆号：LUVNKLA

荧光染料：PE-Cy7

类型:	单抗	同型对照：	Mouse IgG2b kappa Isotype Control (eBMG2b), PE-Cyanine7
浓度：	5 µL/Test	用法：	5 µL (0.125 µg)/test(Flow)

产品详细信息Description: This LUVNKLA monoclonal antibody recognizes human and mouse signal transducer and activator of transcription 3 (STAT3) when phosphorylated on tyrosine 705 (Y705). The STAT family represents seven transcription factors (STATs 1, 2, 3, 4, 5A, 5B, and 6) that are involved in many cellular processes including apoptosis, cell differentiation, and proliferation in a cell type- and cytokine-specific manner. STAT proteins are activated by ligand binding to cytokine receptors that associatewith Janus kinase (JAK) family members.Following their phosphorylation by JAKs, STAT proteins translocate to the nucleus where they bind to DNA and regulate transcription of specific genes in a cell type- and cytokine-specific manner. STAT3 is activated downstream of numerous cytokines including interferons, IL-5, IL-6, IL-10, and LIF. STAT3 is important for the differentiation of Th17 cells and mediates a variety of cellular processes including cell growth and survival. The importance of STAT3 is highlighted by both loss-of-function and gain-of-function mutations. Deletion of STAT3 in T cells results in decreased IL-6- and IL-2-mediated proliferation, while deletion of STAT3 in neutrophils and macrophages results in increased susceptibility to LPS-induced endotoxic shock and increased production of the pro-inflammatory cytokines IL-6 and TNF alpha. Hyper STAT3 activity is associated with poor prognosis of many different cancers.Applications Reported: This LUVNKLA antibody has been reported for use in intracellular staining followed by flow cytometric analysis.Applications Tested: This LUVNKLA antibody has been pre-titrated and tested by intracellular staining followed by flow cytometric analysis of stimulated normal human peripheral blood cells. This can be used at 5 µL (0.125 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.Staining Protocol: We recommend using Protocol C: Two-step protocol: Fixation/Methanol. Protocol A: Two-step protocol: intracellular (cytoplasmic) proteins and Protocol B: One-step protocol: intracellular (nuclear) proteins cannot be used. All Protocols can be found in the Flow Cytometry Protocols: "Staining Intracellular Antigens for Flow Cytometry Protocol" located in the Best Protocols Section under the Resources tab online.Light sensitivity: This tandem dye is sensitive to photo-induced oxidation. Please protect this vial and stained samples from light.Fixation: Samples can be stored in IC Fixation Buffer (cat. 00-8222) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (cat. 00-5333) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone specific performance should be determined empirically.Excitation: 488-561 nm; Emission: 775 nm; Laser: Blue Laser, Green Laser, Yellow-Green Laser.Filtration: 0.2 µm post-manufacturing filtered.靶标信息STAT3 belongs to the family of STAT (signal transducers and activators of transcription) proteins which are phosphorylated by receptor associated kinases, translocate to the nucleus, and act as transcription factors in response to cytokines and growth factors. Coactivators such as CREB-binding protein are required for the transcriptional activation by STAT3. STAT3 can also be activated by Interferon-alpha, Interferon-gamma, EGF, PDGF and IL6. Phosphorylation on tyrosine 705 by JAK1 and JAK2 is essential for STAT3 dimer formation, nuclear translocation, and DNA binding activity. In humans, the STAT3 gene is located on the q arm of chromosome 17. STAT3 has been shown to be activated by IFN-alpha but not IFN-beta. The transcription factors associated with STAT3 are c-Jun and cyclic AMP-responsive enhancer binding protein (CREB). STAT3 mediates the expression of a variety of genes in response to cell stimuli, and thus plays a key role in many cellular processes such as cell growth and apoptosis. The small GTPase Rac1 has been shown to bind and regulate the activity of STAT3 while the PIAS3 protein is a specific inhibitor of STAT3. Three alternatively spliced transcript variants encoding distinct isoforms of STAT3 have been described. Deletion of the STAT3 gene in knock-out mice was lethal at the early embryonic stage.

数据

Phospho-STAT3 (Tyr705) Antibody (25-9033-42) in FlowIntracellular staining of untreated (left) or 15-minute IL-6 treated (right) normal human peripheral blood cells with Anti-Human CD4 eFluor® 450 (Product # 48-0049-42) and Anti-Human/Mouse phospho-STAT3 (Y705) PE-Cyanine7. Cells in the lymphocyte gate were used for analysis. Cells were stained using the Intracellular Fixation/Methanol protocol.

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参考文献：

1.Frontiers in immunologyATF3 Sustains IL-22-Induced STAT3 Phosphorylation to Maintain Mucosal Immunity Through Inhibiting Phosphatases."Published figure using Phospho-STAT3 (Tyr705) monoclonal antibody (Product # 25-9033-42) in Flow Cytometry"2.eLifeReceptor-mediated dimerization of JAK2 FERM domains is required for JAK2 activation."Published figure using Phospho-STAT3 (Tyr705) monoclonal antibody (Product # 25-9033-42) in Flow Cytometry"

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