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Stat1 (N-Terminus) Mouse, Alexa Fluor 647, Clone: 1/STAT1, BD
Mouse Monoclonal Antibody
Supplier: BD Biosciences 558560
Description
Stat (Signal transducer and activators of transcription) proteins are critical mediators of the biologic activity of cytokines, including interleukins, interferons, erythropoietin, and growth factors. Ligand-receptor interaction leads to activation of constitutively associated JAK family kinases and subsequent recruitment/activation of Stat proteins by tyrosine phosphorylation. Active Stat proteins then move to the nucleus to promote transcription of cytokine-inducible genes. Seven Stat proteins have been cloned, each of which is differentially expressed and/or activated in a cytokine-specific and cell type-specific manner. Stat1 and Stat2 are components of the ISGF3 (Interferon-Stimulated Gene Factor 3) complex, which is the primary transcription activator induced by the binding of the interferon to a specific cell-surface receptor. Stat1 has two alternatively spliced isoforms, 91kDa Stat1α and 84kDa Stat1β Stat1α has 38 additional C-terminal amino acids. In response to the binding of IFNα, IFNγ, EGF, PDGF, or CSF-1 to their respective receptors, the Stat1 subunits become tyrosine-phosphorylated at Y701, and the complex is translocated to the nucleus. This results in the formation of an active complex that includes the DNA-binding p48 subunit. This complex is responsible for modulating the transcription of the interferon-stimulated genes (ISGs). Thus, phosphorylation of Y701 in Stat1 occurs in response to growth factors and cytokines, and is essential for normal transcriptional activity of the ISGF3 complex. The 1/Stat1 monoclonal antibody recognizes the N-terminus of human Stat1 (both isoforms), regardless of phosphorylation status.
Intracellular Staining

Specifications
Stat1 (N-Terminus) | |
Monoclonal | |
Alexa Fluor 647 | |
Mouse | |
Affinity Purified | |
RUO | |
Primary | |
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. |
Flow Cytometry | |
1/STAT1 | |
Aqueous buffered solution containing BSA and ≤0.09% sodium azide. | |
Human Stat1 aa. 1-194 | |
50 Tests | |
Cell Biology | |
Canine, Chicken, Frog, Human, Mouse, Rat | |
IgG1 |
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