PathScan® Phospho-Stat1 (Tyr701) Sandwich ELISA Kit #73582
Important Ordering Details
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Supporting Data
| REACTIVITY | H M |
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
Product Information
Product Description
*Antibodies in this kit are custom formulations specific to kit.
Protocol
Specificity / Sensitivity
The PathScan® Phospho-Stat1 (Tyr701) Sandwich ELISA Kit detects endogenous levels of Stat1 protein phosphorylated at Tyr701. The kit sensitivity is shown in Figure 1. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
Species Reactivity:
Human, Mouse
Background
The Stat1 transcription factor is activated in response to a large number of ligands (1) and is essential for responsiveness to IFN-α and IFN-γ (2,3). Phosphorylation of Stat1 at Tyr701 induces Stat1 dimerization, nuclear translocation, and DNA binding (4). Stat1 protein exists as a pair of isoforms, Stat1α (91 kDa) and the splice variant Stat1β (84 kDa). In most cells, both isoforms are activated by IFN-α, but only Stat1α is activated by IFN-γ. The inappropriate activation of Stat1 occurs in many tumors (5). In addition to tyrosine phosphorylation, Stat1 is also phosphorylated at Ser727 through a p38 mitogen-activated protein kinase (MAPK)-dependent pathway in response to IFN-α and other cellular stresses (6). Serine phosphorylation may be required for the maximal induction of Stat1-mediated gene activation.
Limited Uses
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