ATF2 (V63/45) Antibody

1 mg/ml in Phosphate buffered saline (PBS) with 15 mM sodium azide, approx. pH 7.2.

Purification & Purity

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Specificity

ATF2(V63/45) antibody detects endogenous levels of ATF2 protein.

Applications (Recommended Dilutions)

WB: 1:500~1:1000 IHC: 1:50~1:200 IP: 1:50~1:200

Storage&Stability

Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

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. 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. 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. In addition, mutations at these sites reduce the ability of E1A and Rb to stimulate gene expression via ATF-2.