PE anti-STAT3 Antibody

Pricing & Availability
4G4B45 (See other available formats)
Regulatory Status
Other Names
Signal transducer and activator of transcription 3, Acute-phase response factor (APRF), HIES, ADMIO
Mouse IgG1, κ
Ave. Rating
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Product Citations
HeLa cells (filled histogram) or PC-3 cells (open histogram) were fixed with Fixation Buffer, permeabilized with True-Phos™ Perm Buffer, and intracellularly stained with STAT3 (clone 4G4B45) PE.
  • 4G4B45_PE_STAT3_Antibody_090716
    HeLa cells (filled histogram) or PC-3 cells (open histogram) were fixed with Fixation Buffer, permeabilized with True-Phos™ Perm Buffer, and intracellularly stained with STAT3 (clone 4G4B45) PE.
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678007 25 tests 127 CHF
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678008 100 tests 314 CHF
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STAT3 is an 88 kD member of the STAT (signal transducer and activators of transcription) protein family that is phosphorylated in response to a cytokine receptor-associated kinase activity. Phosphorylation of STAT3 induces nuclear translocation to activate transcription. STAT3 forms both homo- and heterotrimers and is involved in the activation of genes required for cell growth and apoptosis. STAT3 is also involved in gp130 signaling and binds to IL-6 response elements in various acute phase protein promoters. STAT3 is phosphorylated by signaling from IFNs, EGF, FGF, IL-5, HGF, LIF, and BMP2. STAT3 activity is inhibited by PIAS3 and GRIM-19 and can also be regulated by the Rac1 protein.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Human, Mouse
Antibody Type
Host Species
Partial human STAT3 recombinant protein (621-770 a.a.) expressed in E. coli.
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
The antibody was purified by affinity chromatography and conjugated with PE under optimal conditions.
Lot-specific (to obtain lot-specific concentration, please enter the lot number in our Concentration and Expiration Lookup or Certificate of Analysis online tools.)
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.

ICFC - Quality tested

Recommended Usage

Each lot of this antibody is quality control tested by intracellular flow cytometry using our True-Phos™ Perm Buffer in Cell Suspensions Protocol. For flow cytometric staining, the suggested use of this reagent is 5 µL per million cells in 100 µL staining volume or 5 µL per 100 µL of whole blood. It is recommended that the reagent be titrated for optimal performance for each application.

Excitation Laser
Blue Laser (488 nm)
Green Laser (532 nm)/Yellow-Green Laser (561 nm)
Application Notes

This clone is not recommended for ChIP (Chromatin Immunoprecipitation) assays (as determined by in-house testing).

Product Citations
  1. Dent JR, et al. 2019. J Appl Physiol (1985). 127:1117. PubMed
AB_2629785 (BioLegend Cat. No. 678007)
AB_2629786 (BioLegend Cat. No. 678008)

Antigen Details

770 amino acids with a predicted molecular weight of 88.1 kD that contains a C-terminal SH2 domain responsible for homo- or herterodimerization.


Phosphorylated in response to cytokine signaling by receptor-associated kinases, translocates to the nucleus to act as a transcriptional activator, activates a wide variety of genes involved in cell growth and apoptosis, and is involved in gp130-related signaling.
STAT3 forms a homodimer or a heterodimer with other STAT family members and interacts with IL31RA, NCOA1, PELP1, SIPAR, SOCS7, STATIP1, CAV2, DAPK3, EIF2AK2, PIAS3, and TMF1.
Cell Type
Embryonic Stem Cells, Mesenchymal Stem Cells, Neural Stem Cells
Biology Area
Cell Biology, Neuroscience, Neuroscience Cell Markers, Stem Cells, Synaptic Biology, Transcription Factors
Molecular Family
Nuclear Markers
Antigen References

1. Lufei C, et al. 2003. EMBO J. 22:1325.
2. Deo D, et al. 2002. J. Biol. Chem. 277:21237.
3. Pfeffer L, et al. 1997. Science 276:1418.
4. Akira S, et al. 1994. Cell 77:63.

Gene ID
6774 View all products for this Gene ID
View information about STAT3 on

Related FAQs

What type of PE do you use in your conjugates?
We use R-PE in our conjugates.
Go To Top Version: 1    Revision Date: 09.09.2016

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*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.


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Toll-Free Phone: 1-877-Bio-Legend (246-5343) Phone: (858) 768-5800 Fax: (877) 455-9587

This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

  • Purified anti-STAT3

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  • Alexa Fluor® 647 anti-STAT3


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