ATF-2 Control Cell Extracts #9223
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Product Information
Product Usage Information
Boil for 3 minutes prior to use. Load 20 µl of phosphorylated and nonphosphorylated ATF-2 Control Cell Extracts per lane.
Storage
Supplied in SDS Sample Buffer: 62.5 mM Tris-HCl (pH 6.8 at 25°C), 2% w/v SDS, 10% glycerol, 50 mM DTT, 0.01% w/v phenol red or bromophenol blue. Store at –20°C or at –80°C for long term storage.
Product Description
Nonphosphorylated ATF-2 Control Cell Extracts: Total extracts from NIH/3T3 cells, to serve as a negative control. Supplied in SDS Sample Buffer.
Phosphorylated ATF-2 Control Cell Extracts: Total extracts from NIH/3T3 cells, treated with Anisomycin #2222 at 25 ug/ml for 30 minutes to serve as a positive control. Supplied in SDS Sample Buffer.
Phosphorylated ATF-2 Control Cell Extracts: Total extracts from NIH/3T3 cells, treated with Anisomycin #2222 at 25 ug/ml for 30 minutes to serve as a positive control. Supplied in SDS Sample Buffer.
Background
The transcription factor ATF-2 (also called CRE-BP1) binds to both AP-1 and CRE DNA response elements and is a member of the ATF/CREB family of leucine zipper proteins (1). ATF-2 interacts with a variety of viral oncoproteins and cellular tumor suppressors and is a target of the SAPK/JNK and p38 MAP kinase signaling pathways (2-4). Various forms of cellular stress, including genotoxic agents, inflammatory cytokines, and UV irradiation, stimulate the transcriptional activity of ATF-2. Cellular stress activates ATF-2 by phosphorylation of Thr69 and Thr71 (2-4). Both SAPK and p38 MAPK have been shown to phosphorylate ATF-2 at these sites in vitro and in cells transfected with ATF-2. Mutations of these sites result in the loss of stress-induced transcription by ATF-2 (2-4). In addition, mutations at these sites reduce the ability of E1A and Rb to stimulate gene expression via ATF-2 (2).
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For Research Use Only. Not For Use In Diagnostic Procedures.
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