Invitrogen

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

7 Published Figures
6 References
View all (107) STAT3 antibodies

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Datasheet
Protocols
Questions & Answers
Datasheet
Protocols
Questions & Answers

Product Details

25-9033-42

Applications
Tested Dilution
Publications

Flow Cytometry (Flow)

5 µL (0.125 µg)/test
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Product Specifications

Species Reactivity

Human, Mouse

Published species

Human

Host/Isotype

Mouse / IgG2b, kappa

Recommended Isotype Control

Mouse IgG2b kappa Isotype Control (eBMG2b), PE-Cyanine7, eBioscience™

Class

Monoclonal

Type

Antibody

Clone

LUVNKLA

Conjugate

PE-Cyanine7 PE-Cyanine7 PE-Cyanine7

Excitation/Emission Max

569/780 nm View spectra spectra

Form

Liquid

Concentration

5 µL/Test

Purification

Affinity chromatography

Storage buffer

PBS, pH 7.2, with 0.2% BSA

Contains

0.09% sodium azide

Storage conditions

4°C, store in dark, DO NOT FREEZE!

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_2573536

Product Specific Information

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 associate with 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 BestProtocols® 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 (Product # 00-8222) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 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.

Target Information

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.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

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Bioinformatics

Protein Aliases: acute phase response factor; Acute-phase response factor; DNA-binding protein APRF; FLJ20882; MGC16063; Signal transducer and activator of transcription 3; signal transducer and activator of transcription 3 (acute-phase response factor); STAT

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Gene Aliases: 1110034C02Rik; ADMIO; ADMIO1; APRF; AW109958; HIES; STAT3

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UniProt ID: (Human) P40763, (Mouse) P42227

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Entrez Gene ID: (Human) 6774, (Mouse) 20848

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Function(s)
RNA polymerase II core promoter proximal region sequence-specific DNA binding transcriptional activator activity, RNA polymerase II core promoter proximal region sequence-specific binding RNA polymerase II repressing transcription factor binding transcriptional activator activity, RNA polymerase II transcription regulatory region sequence-specific binding DNA binding transcription factor activity, sequence-specific DNA binding signal transducer activity RNA polymerase II transcription factor activity, ligand-activated sequence-specific DNA binding protein binding transcription factor binding protein kinase binding protein phosphatase binding chromatin DNA binding CCR5 chemokine receptor binding glucocorticoid receptor binding identical protein binding transcription regulatory region DNA binding protein dimerization activity RNA polymerase II transcription factor activity, sequence-specific DNA binding sequence-specific DNA binding
Process(es)
negative regulation of transcription from RNA polymerase II promoter temperature homeostasis eye photoreceptor cell differentiation regulation of transcription, DNA-templated regulation of transcription from RNA polymerase II promoter transcription from RNA polymerase II promoter protein import into nucleus movement of cell or subcellular component acute-phase response signal transduction JAK-STAT cascade nervous system development aging cell proliferation negative regulation of cell proliferation positive regulation of gene expression negative regulation of hydrogen peroxide biosynthetic process viral process phosphorylation cytokine-mediated signaling pathway sexual reproduction intracellular receptor signaling pathway response to estradiol cellular response to hormone stimulus leptin-mediated signaling pathway somatic stem cell population maintenance miRNA mediated inhibition of translation regulation of multicellular organism growth response to drug positive regulation of tyrosine phosphorylation of Stat3 protein glucose homeostasis eating behavior negative regulation of apoptotic process cellular response to leptin stimulus response to leptin response to ethanol positive regulation of Notch signaling pathway negative regulation of glycolytic process positive regulation of transcription, DNA-templated positive regulation of transcription from RNA polymerase II promoter regulation of mitochondrial membrane permeability astrocyte differentiation regulation of cell cycle radial glial cell differentiation regulation of feeding behavior growth hormone receptor signaling pathway JAK-STAT cascade involved in growth hormone signaling pathway interleukin-6-mediated signaling pathway cellular response to organic cyclic compound energy homeostasis negative regulation of neuron death positive regulation of growth factor dependent skeletal muscle satellite cell proliferation positive regulation of pri-miRNA transcription from RNA polymerase II promoter positive regulation of metalloendopeptidase activity positive regulation of gene silencing by miRNA positive regulation of ATP biosynthetic process negative regulation of neuron migration transcription, DNA-templated stem cell population maintenance response to cytokine negative regulation of cell death
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