Western blot of human melanoma cells incubated with varying doses of the radiometric drug NCS showing phospho-specific immunolabeling of the ATF2 protein phosphorylated at Ser 490,498.
The activating 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. ATF-2 has been implicated in the transcriptional regulation of a number of genes including cytokines, cell cycle control and apoptosis. Various forms of cellular stress, including inflammatory cytokines and UV irradiation, stimulate the transcriptional activity of ATF-2. Stress induced ATF-dependent transcription is dependent on phosphorylation of ATF. Serine 490 and serine 498 are novel phosphorylation sites on ATF that have recently been identified. In addition, ATF2 is particularly abundant in the brain and the ATF2 family of transcription factors is considered important substrates of signals upstream of the activation of genes associated with neuronal growth and differentiation. ATF expression has also been linked to the depression in humans.1) Laifenfeld, D., Karry, R., Grauer, E., Klein, E., and Ben-Shachar, D. "ATF2, a member of the CREB/ATF family of transcription factors, in chronicstress and consequent to antidepressant treatment: animal models and humanpost-mortem brains." Neuropsychopharmacology, 29 (2004) 589 - 97.
Immunogen
ATF-2 (Ser 490/498) polyclonal antibody was raised against a synthetic phosphopeptide corresponding to amino acids residues surrounding the human phospho Ser490/498 of ATF2.
Modification
p-Ser 490 / 498
Key Feature
Clonality
Polyclonal
Host Species
Rabbit
Tested Applications
IHCWB
The antibody also recognizes the phosphorylated 54k splice form of ATF2. Applications include Dot Blots (DB), Immunohistochemistry (IHC) and Western Blots (WB). When internally tested under ideal conditions the working dilutions were 1:1000 for DB, IHC and WB.:
Western blot of human melanoma cells incubated with varying doses of the radiometric drug NCS showing phospho-specific immunolabeling of the ATF2 protein phosphorylated at Ser 490,498.
Application Notes
The antibody also recognizes the phosphorylated 54k splice form of ATF2. Applications include Dot Blots (DB), Immunohistochemistry (IHC) and Western Blots (WB). When internally tested under ideal conditions the working dilutions were 1:1000 for DB, IHC and WB.:
Additional Information
Form
Liquid
Storage Instructions
For long term storage –80˚C is recommended, but shorter term storage at –20˚C is also acceptable as aliquots may be taken without freeze/thawing due to the presence of 50% glycerol. Stable for one year.
Storage Buffer
100 uL in 10 mM HEPES (pH 7.5), 150 mM NaCl, 100 ug per mL BSA and 50% glycerol.