Skip to Content
Merck
All Photos(1)

Documents

05-485

Sigma-Aldrich

Anti-phospho-STAT3 (Tyr705) Antibody, clone 9E12

clone 9E12, Upstate®, from mouse

Synonym(s):

Acute-phase response factor, DNA-binding protein APRF, signal transducer and activator of transcription 3, signal transducer and activator of transcription 3 (acute-phase response factor)

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

9E12, monoclonal

species reactivity

canine, human, mouse

manufacturer/tradename

Upstate®

technique(s)

ELISA: suitable
immunoprecipitation (IP): suitable
western blot: suitable

isotype

IgG1κ

NCBI accession no.

UniProt accession no.

shipped in

dry ice

target post-translational modification

phosphorylation (pTyr705)

Gene Information

human ... STAT3(6774)

General description

STATs (signal transducers and activators of transcription) were originally discovered as two proteins (STAT1 and STAT2) which were involved in interferon-alpha (IFN-alpha) and IFN-gamma signal transduction. Since then, several additional STAT proteins have been identified (STAT3, 4, 5a, 5b, and 6). STATs undergo tyrosine phosphorylation in response to growth factor or cytokine signaling. This phosphorylation results in dimerization and translocation of STAT proteins to the nucleus. In some cases this process is mediated by JAK Kinases (Janus Kinases 1, 2, and 3). For maximum activation of these proteins, phosphorylation at specific tyrosine and serine residues may be required in STAT1 alpha, 3, 4, and 5. Specific functions of the various members of the STAT family are poorly understood. 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). Deletion of the STAT3 gene in knock-out mice was lethal at the early embryonic stage.

Specificity

This antibody recognizes STAT3, Mr 92 kDa, phos-phorylated on tyrosine-705. Clone 9E12.

Immunogen

KLH-conjugated phosphopeptide containing the AP[pY]LK motif of STAT3

Application

Immunoprecipitation: An independent laboratory has reported 1-10 µg/mL of a previous lot of this antibody immunoprecipitated phospho-STAT3 (Tyr705) from a lysate of 106 vanadate-treated human A431 cells.

ELISA: 0.05 µg/mL of this antibody is recommended by an independent lab for ELISA testing. Test was conducted on a previous lot.
Research Category
Epigenetics & Nuclear Function
Research Sub Category
Transcription Factors
Use Anti-phospho-STAT3 (Tyr705) Antibody, clone 9E12 (Mouse Monoclonal Antibody) validated in ELISA, IP, WB to detect phospho-STAT3 (Tyr705) also known as Acute-phase response factor or DNA-binding protein APRF. This Stat3 Antibody has been validated in Human, Mouse and Canine samples.

Quality

Routinely evaluated by immunoblot on lysates from human SK-N-MC cells stimulated with CNTF.

Western Blot Analysis:
0.1-1 µg/mL of this lot detected phospho-STAT3 (Tyr705) in lysates from human SK-NMC cells stimulated with CNTF.

Target description

92 kDa

Linkage

Replaces: 04-1059

Physical form

Format: Purified
Lyophilized purified mouse IgG1ќ from 1 mL 2x PBS / 0.09 % Na-azide / PEG and Sucrose. Reconstitute with 100 µL H2O (15 min, RT) for a final concentration of 1 mg/mL.
Thiophilic adsoption and size exclusion chromatography

Storage and Stability

Stable for 1 year at -20°C from date of receipt.

Handling Recommendations:
Upon receipt, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. Note: Variability in freezer temperatures below -20°C may cause glycerol-containing solutions to become frozen during storage.

Analysis Note

Control
SK-N-MC cells

murine macrophage 4/4 cells, serum-starved for 16 hours then stimulated with Phorbol 12-myristate 13-acetate (PMA) for 10 minutes

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Not finding the right product?  

Try our Product Selector Tool.

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Malcolm A Meyn et al.
Science signaling, 2(92), ra64-ra64 (2009-10-15)
Multiple Src family kinases (SFKs) are present in murine embryonic stem (mES) cells. Whereas complete inhibition of SFK activity blocks mES cell differentiation, sole inhibition of the SFK member c-Yes induces differentiation. Thus, individual SFKs may have opposing roles in
Lei He et al.
American journal of physiology. Gastrointestinal and liver physiology, 316(6), G774-G784 (2019-04-18)
Previous studies suggest that the renin-angiotensin system (RAS) is a pathogenic factor for colitis. The goal of this study was to elucidate the molecular mechanism whereby angiotensin II (ANG II) promotes colonic inflammation. We found that renin was highly induced
Ralph A Zirngibl et al.
Molecular and cellular biology, 22(8), 2472-2486 (2002-03-23)
The fps/fes proto-oncogene encodes a cytoplasmic protein tyrosine kinase implicated in growth factor and cytokine receptor signaling and thought to be essential for the survival and terminal differentiation of myeloid progenitors. Fps/Fes-null mice were healthy and fertile, displayed slightly reduced
Nuclear expression of a group II intron is consistent with spliceosomal intron ancestry.
Chalamcharla VR, Curcio MJ, Belfort M
Genes & Development null
Y Senis et al.
Molecular and cellular biology, 19(11), 7436-7446 (1999-10-19)
The fps/fes proto-oncogene encodes a cytoplasmic protein-tyrosine kinase that is functionally implicated in the survival and terminal differentiation of myeloid progenitors and in signaling from several members of the cytokine receptor superfamily. To gain further insight into the physiological function

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service