- A16089B (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
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- Product Citations
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The STAT3 transcription factor is an important signaling molecule for many cytokines and growth factor receptors and is required for murine fetal development. 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. Stat3 is activated by phosphorylation at Tyr705, which induces dimerization, nuclear translocation, and DNA binding. Transcriptional activation was reported to be regulated by phosphorylation at Ser727 through the MAPK or mTOR pathways.
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.
- Antibody Type
- Host Species
- Human Stat3 peptide phosphorylated at Ser 727. Complete Freund's adjuvant.
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography.
- 0.5 mg/ml
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C.
ICFC - Quality tested
ICC, ChIP - Verified
- 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 ≤ 0.03 µg per million cells in 100 µl volume. For immunocytochemistry, a concentration of 2.5 μg/mL is recommended. For ChIP applications, the suggested dilution is 1:50-1:100 by volume. It is recommended that the reagent be titrated for optimal performance for each application.
- Application Notes
The STAT3 Phospho (Ser727) antibody recognizes the regulatory serine phosphorylation of human STAT3 protein.
AB_2728515 (BioLegend Cat. No. 698901)
AB_2728516 (BioLegend Cat. No. 698902)
- STAT3 is a 770 amino acid protein of 88 kD. It consists of a DNA binding domain, a SH2 domain, a regulatory tyrosine responsible for binding of SH2 domain, and a C-terminal transactivation domain.
- 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.
- When activated, STAT3 dimerizes and translocates to the nucleus where it regulates gene expression.
- Biology Area
- Cell Biology, Neuroscience, Neuroscience Cell Markers, Signal Transduction, Transcription Factors
- Molecular Family
- Nuclear Markers, Phospho-Proteins
- Antigen References
1. Akira S, et al. 1994. Cell. 77:63.
2. Zhang X, et al. 1995. Science 267:1990.
3. Sanchez-Margalet V, et al. 2001. Cell. Immunol. 211:30.
4. Simon A, et al. 2000. Science 290:144.
5. Hoey T, et al. 1999. Adv. Immunol. 71:145.
- Gene ID
- 6774 View all products for this Gene ID
- View information about STAT3 Phospho Ser727 on UniProt.org
- BioLegend’s Tools for Chromatin Immunoprecipitation (ChIP) Assays - Video
- Chromatin Immunoprecipitation (ChIP) Assay Protocol
- Immunocytochemistry Staining Protocol
- Intracellular Staining With True-Phos™ Perm Buffer in Cell Suspensions Protocol
- Intracellular Staining With True-Phos™ Perm Buffer in Whole Blood
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