Signal Transducer and Activator of Transcription (STAT) proteins are transcription factors activated in response to cytokine, growth factor, or hormone receptor signaling. Janus kinases (JAKs) phosphorylate STAT proteins and induce dimerization. Homo- or heterodimers translocate to the nucleus where they bind to DNA and activate transcription.
Human/Mouse STAT3 Antibody
R&D Systems | Catalog # AF17991
Discontinued Product
AF17991 has been discontinued.
View all STAT3 products.
Key Product Details
Species Reactivity
Validated:
Human, Mouse
Cited:
Human
Applications
Validated:
Western Blot, Intracellular Staining by Flow Cytometry, Immunocytochemistry, CyTOF-ready
Cited:
Western Blot, Chromatin Immunoprecipitation (ChIP)
Label
Unconjugated
Antibody Source
Polyclonal Sheep IgG
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Product Specifications
Immunogen
E. coli-derived recombinant human STAT3
Met1-Asn175
Accession # P40763
Met1-Asn175
Accession # P40763
Specificity
Detects human and mouse STAT3 in Western blots.
Clonality
Polyclonal
Host
Sheep
Isotype
IgG
Scientific Data Images for Human/Mouse STAT3 Antibody
Detection of Human STAT3 by Western Blot.
Western blot shows lysates of NIH-3T3 mouse embryonic fibroblast cell line, Raji human Burkitt's lymphoma cell line, and Daudi human Burkitt's lymphoma cell line. PVDF membrane was probed with 0.5 µg/mL of Sheep Anti-Human STAT3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF17991) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for STAT3 at approximately 92 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.STAT3 in Human PBMCs.
STAT3 was detected in immersion fixed human peripheral blood mononuclear cells (PBMCs) using 15 µg/mL Sheep Anti-Human STAT3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF17991) for 3 hours at room temperature. Cells were stained with the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; Catalog # NL010) and counterstained (green). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.Detection of Human STAT3 by Western Blot
Regulation of hepcidin by IL-10 in primary macrophages, showing (a) the effect of IL-10 on Hepcidin mRNA synthesis with and without anti-IL-10 blocking antibody; (b) Western blot of STAT3 phosphorylation 20 minutes after exposure to increasing concentrations of IL-10; (c) STAT3-P inhibition of IL-10 (30 ng/mL) by Stattic.Bar plots show data from at least 3 independent experiments and the sho Western blot shows data from a representative experiment. M = media, iso ctrl = isotype control. * P<0.05, ***P<0.01 (Mann-Whitney test, compared with Media control). Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/24520384), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of Human STAT3 by Western Blot
Regulation of hepcidin by IL-10 in primary macrophages, showing (a) the effect of IL-10 on Hepcidin mRNA synthesis with and without anti-IL-10 blocking antibody; (b) Western blot of STAT3 phosphorylation 20 minutes after exposure to increasing concentrations of IL-10; (c) STAT3-P inhibition of IL-10 (30 ng/mL) by Stattic.Bar plots show data from at least 3 independent experiments and the sho Western blot shows data from a representative experiment. M = media, iso ctrl = isotype control. * P<0.05, ***P<0.01 (Mann-Whitney test, compared with Media control). Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/24520384), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Human/Mouse STAT3 Antibody
Application
Recommended Usage
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
Immunocytochemistry
5-15 µg/mL
Sample: Immersion fixed human peripheral blood mononuclear cells (PBMCs)
Sample: Immersion fixed human peripheral blood mononuclear cells (PBMCs)
Intracellular Staining by Flow Cytometry
2.5 µg/106 cells
Sample: Jurkat human acute T cell leukemia cell line fixed with paraformaldehyde and permeabilized with saponin
Sample: Jurkat human acute T cell leukemia cell line fixed with paraformaldehyde and permeabilized with saponin
Western Blot
0.5 µg/mL
Sample: NIH-3T3 mouse embryonic fibroblast cell line, Raji human Burkitt's lymphoma cell line, and Daudi human Burkitt's lymphoma cell line
Sample: NIH-3T3 mouse embryonic fibroblast cell line, Raji human Burkitt's lymphoma cell line, and Daudi human Burkitt's lymphoma cell line
Flow Cytometry Panel Builder
Bio-Techne Knows Flow Cytometry
Save time and reduce costly mistakes by quickly finding compatible reagents using the Panel Builder Tool.
Advanced Features
- Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
- Spillover Popups - Visualize the spectra of individual fluorochromes
- Antigen Density Selector - Match fluorochrome brightness with antigen density
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: STAT3
Long Name
Signal Transducer and Activator of Transcription 3
Alternate Names
Acute-phase response factor, APRFMGC16063, DNA-binding protein APRF, FLJ20882, HIES, signal transducer and activator of transcription 3, signal transducer and activator of transcription 3 (acute-phase responsefactor)
Gene Symbol
STAT3
UniProt
Additional STAT3 Products
Product Documents for Human/Mouse STAT3 Antibody
Certificate of Analysis
To download a Certificate of Analysis, please enter a lot or batch number in the search box below.
Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human/Mouse STAT3 Antibody
For research use only
Citations for Human/Mouse STAT3 Antibody
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- 7-Amino Actinomycin D (7-AAD) Cell Viability Flow Cytometry Protocol
- Appropriate Fixation of IHC/ICC Samples
- Cellular Response to Hypoxia Protocols
- ClariTSA™ Fluorophore Kits
- Detection & Visualization of Antibody Binding
- Extracellular Membrane Flow Cytometry Protocol
- Flow Cytometry Protocol for Cell Surface Markers
- Flow Cytometry Protocol for Staining Membrane Associated Proteins
- Flow Cytometry Staining Protocols
- Flow Cytometry Troubleshooting Guide
- ICC Cell Smear Protocol for Suspension Cells
- ICC Immunocytochemistry Protocol Videos
- ICC for Adherent Cells
- Immunocytochemistry (ICC) Protocol
- Immunocytochemistry Troubleshooting
- Immunofluorescence of Organoids Embedded in Cultrex Basement Membrane Extract
- Immunohistochemistry (IHC) and Immunocytochemistry (ICC) Protocols
- Intracellular Flow Cytometry Protocol Using Alcohol (Methanol)
- Intracellular Flow Cytometry Protocol Using Detergents
- Intracellular Nuclear Staining Flow Cytometry Protocol Using Detergents
- Intracellular Staining Flow Cytometry Protocol Using Alcohol Permeabilization
- Intracellular Staining Flow Cytometry Protocol Using Detergents to Permeabilize Cells
- Preparing Samples for IHC/ICC Experiments
- Preventing Non-Specific Staining (Non-Specific Binding)
- Primary Antibody Selection & Optimization
- Propidium Iodide Cell Viability Flow Cytometry Protocol
- Protocol for Liperfluo
- Protocol for VisUCyte™ HRP Polymer Detection Reagent
- Protocol for the Characterization of Human Th22 Cells
- Protocol for the Characterization of Human Th9 Cells
- Protocol for the Fluorescent ICC Staining of Cell Smears - Graphic
- Protocol for the Fluorescent ICC Staining of Cultured Cells on Coverslips - Graphic
- Protocol for the Preparation and Fluorescent ICC Staining of Cells on Coverslips
- Protocol for the Preparation and Fluorescent ICC Staining of Non-adherent Cells
- Protocol for the Preparation and Fluorescent ICC Staining of Stem Cells on Coverslips
- Protocol for the Preparation of a Cell Smear for Non-adherent Cell ICC - Graphic
- Protocol: Annexin V and PI Staining by Flow Cytometry
- Protocol: Annexin V and PI Staining for Apoptosis by Flow Cytometry
- R&D Systems Quality Control Western Blot Protocol
- TUNEL and Active Caspase-3 Detection by IHC/ICC Protocol
- The Importance of IHC/ICC Controls
- Troubleshooting Guide: Fluorokine Flow Cytometry Kits
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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Associated Pathways
IL-15 Signaling Pathways
IL-21 Signaling Pathways
IL-21 Signaling Pathways and their Primary Biological Effects in Different Immune Cell Types
Jak/STAT Signaling Pathway
Th1 Differentiation Pathway
Th17 Differentiation Pathway
VEGF - VEGF R2 Signaling Pathways