STAT (for signal transducers and activators of transcription) proteins can be selectively phosphorylated on tyrosine residues by Jak family kinases and some receptors with tyrosine kinase activity.
The STAT proteins are highly conserved in their amino termini, but have divergent carboxy termini, which are thought to be essential for their selective activity.
Seven STAT proteins have been described (STAT1a, STAT1b, STAT2, STAT3, STAT4, STAT5, and STAT6) and range in molecular weight from 84-113kD.
Interferon-a promotes phosphorylation of STAT1 and STAT2, which then form heterodimers that interact with the 48kD DNA binding protein ISGF3.
This complex moves to the nucleus where it binds to interferon-stimulated response elements and activates transcription of specific genes.
In contrast to interferon-a signaling, interferon-g only induces phosphorylation of STAT1a or b.
STAT proteins may be involved in the intracellular signaling of many cytokines and growth factors via the activation of gene expression.
Applications:Suitable for use in Western Blot and Immunoprecipitation.
Other applications have not been tested.
Recommended Dilutions:Optimal dilutions to be determined by the researcher.
Storage and Stability:Store product at 4°C if to be used immediately within two weeks.
For long-term storage, aliquot to avoid repeated freezing and thawing and store at -20°C.
Aliquots are stable at -20°C for 12 months after receipt.
Dilute required amount only prior to immediate use.
Further dilutions can be made in assay buffer.
Caution: FITC conjugates are sensitive to light.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Note: Applications are based on unconjugated antibody.
仕様
Size:100ul
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by affinity chromatography
Form:Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with Fluorescein isothiocyanate (FITC).
Specificity:Recognizes STAT2 phosphorylated at Tyr689, Mr113kD. An uncharacterized band may appear at ~260kD in some lysates. Species Crossreactivity: human
Isotype:IgG
Calc Applications Abbrev:IP WB
Calc Crossreactivity:Hu
Immunogen:KLH-conjugated synthetic peptide corresponding to mouse STAT2 phosphorylated at Tyr689. Species Sequence Homology: mouse; 100%, rat; 89%