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  • Product nameAnti-STAT3 antibody
    See all STAT3 primary antibodies
  • Description
    Rabbit polyclonal to STAT3
  • SpecificityReacts with STAT3 p92
  • Tested applicationsICC/IF, IHC-Fr, IP, WBmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide (Mouse) (C terminal).

  • Positive control
    • KNRK, K-562, and NIH3T3
  • General notesSTATs are Signal Transducers and Activators of Transcription STATs are a family of cytoplasmic proteins that participate in cellular responses to cytokines and growth factors. Many cytokines involved in immune responses utilize the Jak-STAT signaling pathway. Jaks are receptor-associated protein tyrosine kinases, and STATs are activated by tyrosine phosphorylation. Abnormal signaling of the JAK-STAT pathway has been implicated in hematopoietic disorders including SCID and leukemia, and programming gene expression in biological events such as embryonic development, apoptosis, organogenesis, innate immunity, adaptive immunity and cell growth regulation. STAT1 knockout mice are defective in interferon-mediated functions.


Our Abpromise guarantee covers the use of ab7966 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ICC/IF Use at an assay dependent concentration.
IHC-Fr Use at an assay dependent concentration.
IP Use at an assay dependent concentration.
WB Use at an assay dependent concentration. Predicted molecular weight: 88 kDa.Can be blocked with STAT3 peptide (ab8001).


  • FunctionTranscription factor that binds to the interleukin-6 (IL-6)-responsive elements identified in the promoters of various acute-phase protein genes. Activated by IL31 through IL31RA.
  • Tissue specificityHeart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas.
  • Involvement in diseaseDefects in STAT3 are the cause of hyperimmunoglobulin E recurrent infection syndrome autosomal dominant (AD-HIES) [MIM:147060]; also known as hyper-IgE syndrome or Job syndrome. AD-HIES is a rare disorder of immunity and connective tissue characterized by immunodeficiency, chronic eczema, recurrent Staphylococcal infections, increased serum IgE, eosinophilia, distinctive coarse facial appearance, abnormal dentition, hyperextensibility of the joints, and bone fractures.
  • Sequence similaritiesBelongs to the transcription factor STAT family.
    Contains 1 SH2 domain.
  • Post-translational
    Tyrosine phosphorylated upon stimulation with EGF (By similarity). Tyrosine phosphorylated in response to IL-6, IL-11, CNTF, LIF, CSF-1, EGF, PDGF, IFN-alpha and OSM. Phosphorylated on serine upon DNA damage, probably by ATM or ATR. Serine phosphorylation is important for the formation of stable DNA-binding STAT3 homodimers and maximal transcriptional activity. ARL2BP may participate in keeping the phosphorylated state of STAT3 within the nucleus.
  • Cellular localizationCytoplasm. Nucleus. Shuttles between the nucleus and the cytoplasm. Constitutive nuclear presence is independent of tyrosine phosphorylation. Predominantly present in the cytoplasm without stimuli. Upon leukemia inhibitory factor (LIF) stimulation, accumulates in the nucleus. The complex composed of BART and ARL2 plays an important role in the nuclear translocation and retention of STAT3.
  • Information by UniProt
  • Database links
  • Alternative names
    • 1110034C02Rik antibody
    • Acute Phase Response Factor antibody
    • Acute-phase response factor antibody
    • APRF antibody
    • AW109958 antibody
    • DNA binding protein APRF antibody
    • FLJ20882 antibody
    • HIES antibody
    • MGC16063 antibody
    • Signal transducer and activator of transcription 3 (acute phase response factor) antibody
    • Signal transducer and activator of transcription 3 antibody
    • STAT 3 antibody
    • Stat3 antibody
    • STAT3_HUMAN antibody
    see all

Anti-STAT3 antibody images

  • Cells were fixed with 4% formaldehyde in PEM buffer. The coverslip was incubated in blocking buffer of 5% powdered milk in TBS-T plus 0.02% sodium azide for 1 hour at room temperature. Blocking buffer was removed and primary antibody was added at a dilution of 1/20 and incubated overnight at 4 degrees celsius. The coverslips were then washed 4-5 times with blocking buffer for 5 minutes. Secondary antibody, goat anti-rabbit Alexa 594, was added at a dilution of 1/1000 and incubated at room temperature for one hour. From this point on coverslips were covered with foil to protect them from light. They were washed 5 times with TBS-T and then one time with PEM, for 5 minutes each wash. The coverslips were fixed 10-30 minutes in 4% formaldehyde in PEM buffer, then washed 3 times with PEM buffer for 5 minutes. 0.1M ammonium chloride in PEM buffer was added for 10 minutes to quench auto-florescence, and then slips were washed 2 times for 5 minutes in PEM followed by 3 washes for 5 minutes in TBS-T. Coverslips were then counterstained with DAPI in TBS-T for 1-2 minutes, TBS-T was then added and the coverslips mounted.
  • Anti-STAT3 antibody (ab7966) at 1 µg/ml + HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate at 10 µg

    Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution

    Predicted band size : 88 kDa
    Observed band size : 90 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 38 kDa,40 kDa. We are unsure as to the identity of these extra bands.

References for Anti-STAT3 antibody (ab7966)

This product has been referenced in:
  • Chong HC  et al. Angiopoietin-like 4 Stimulates STAT3-mediated iNOS Expression and Enhances Angiogenesis to Accelerate Wound Healing in Diabetic Mice. Mol Ther N/A:N/A (2014). Mouse . Read more (PubMed: 24903577) »
  • Li C  et al. Qishenyiqi protects ligation-induced left ventricular remodeling by attenuating inflammation and fibrosis via STAT3 and NF-?B signaling pathway. PLoS One 9:e104255 (2014). WB ; Rat . Read more (PubMed: 25122164) »

See all 2 Publications for this product

Product Wall

Application Western blot
Sample Spermophilus tridecemlineatus Tissue lysate - whole (brain)
Gel Running Conditions Reduced Denaturing (10%)
Loading amount 20 µg
Specification brain
Blocking step BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 3% · Temperature: 4°C

Abcam user community

Verified customer

Submitted Apr 20 2015

We obtain this antibody from an external source, therefore this is the only format that we can supply.