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Western blot analysis of Phospho-STAT3 pTyr705 in whole cell extracts of HeLa treated with IFN1a (150ng/ml, 15 min, lane 1 and 3) or with Insulin (100ng/ml, 15 min, lane 2 and 4) using a Phospho-STAT3 pTyr705 recombinant rabbit monoclonal antibody (Product # 701062) at a dilution of 2.5ug/ml. To confirm specificity, competition was performed by preincubation with the phosphopeptide to inhibit antibody binding (lanes 3 and 4). Results show a band at ~90kDa.
|Tested species reactivity||Human|
|Host / Isotype||Rabbit / IgG|
|Immunogen||Phosphopeptide corresponding to amino acids 698–709 of human STAT3|
|Contains||0.09% sodium azide|
|Storage Conditions||Maintain refrigerated at 2-8°C for up to 1 month. For long term storage store at -20°C|
|Tested Applications||Dilution *|
|Western Blot (WB)||1-3 ug/ml|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
ABfinity™ recombinant antibodies are rabbit monoclonal antibodies, unmatched for producing superior results. ABfinity™ antibodies are developed by immunizing animals, screening for functionality, cloning the immunogen-specific antibody genes into high-level mammalian expression vectors, produced on a large scale, and purified with Protein A.
ABfinity™ monoclonal antibodies resemble rabbit monoclonals isolated from serum or produced by hybridomas, but demonstrate greater specificity and sensitivity. Because ABfinity™ recombinant antibodies are derived from cloned DNA sequences of the heavy and light antibody chains, they are not susceptible to cell-line drift or lot-to-lot variation, thus allowing for peak specificity and performance.
Intact IgG appears on a non-reducing gel as ~150 kDa band and upon reduction generating a ~25 kDa light chain band and a ~50 kDa heavy chain.
STAT3 belongs to the family of STAT (signal transducers and activators of transcription) proteins which are phosphorylated by receptor associated kinases, translocate to the nucleus, and act as transcription factors in response to cytokines and growth factors. Coactivators such as CREB-binding protein are required for the transcriptional activation by STAT3. It also can be activated by Interferon-alpha, Interferon-gamma, EGF, PDGF and IL6. Phosphorylation on tyrosine 705 by JAK1 and JAK2 is essential for STAT3 dimer formation, nuclear translocation, and DNA binding activity. In humans, the STAT3 gene is located on the q arm of chromosome 17.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Acute-phase response factor; APRF; DNA-binding protein APRF; FLJ20882; HIES; MGC16063; Signal transducer and activator of transcription 3; signal transducer and activator of transcription 3 (acute-phase response factor)
ADMIO; ADMIO1; APRF; HIES; STAT3