CST, 52527S, Phospho-Stat3 (Tyr705) (D3A7) Rabbit Monoclonal Antibody (Pacific Blue™ Conjugate)

Monoclonal Antibody for studying STAT3 (Tyr705) phosphate. Validated for Flow Cytometry (Fixed/Permeabilized). Highly specific and rigorously validated in-house, Phospho-Stat3 (Tyr705) (D3A7) Rabbit Monoclonal Antibody (Pacific Blue^™ Conjugate) (CST #52527) is ready to ship. Product Usage Information Flow Cytometry (Fixed/Permeabilized): 1:50 Storage Supplied in PBS (pH 7.2), less than 0.1% sodium azide, and 2 mg/mL BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze. Protocol Available protocols: Flow Cytometry (Fixed/Permeabilized) Specificity / Sensitivity Phospho-Stat3 (Tyr705) (D3A7) Rabbit Monoclonal Antibody (Pacific Blue™ Conjugate) detects endogenous levels of Stat3 only when phosphorylated at Tyr705. This antibody conjugate does not cross-react with phospho-EGFR or the corresponding phospho-tyrosines of other Stat proteins. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr705 of mouse Stat3. Background The Stat3 transcription factor is an important signaling molecule for many cytokines and growth factor receptors (1) and is required for murine fetal development (2). Research studies have shown that Stat3 is constitutively activated in a number of human tumors (3,4) and possesses oncogenic potential (5) and anti-apoptotic activities (3). Stat3 is activated by phosphorylation at Tyr705, which induces dimerization, nuclear translocation, and DNA binding (6,7). Transcriptional activation seems to be regulated by phosphorylation at Ser727 through the MAPK or mTOR pathways (8,9). Stat3 isoform expression appears to reflect biological function as the relative expression levels of Stat3α (86 kDa) and Stat3β (79 kDa) depend on cell type, ligand exposure, or cell maturation stage (10). It is notable that Stat3β lacks the serine phosphorylation site within the carboxy-terminal transcriptional activation domain (8). Alternate Names Acute-phase response factor; ADMIO; ADMIO1; 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); STAT3 Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous Source/Isotype: Rabbit IgG