Anti-Phospho-ATF2 (Thr52) Antibody

The transcription factor ATF2 is a member of the ATF/CREB family of leucine zipper proteins. In response to stress stimuli, it activates a variety of gene targets that are involved in oncogenesis, and has been correlated with maintenance of a cancer cell phenotype (Vlahopoulos et al., 2008) . Inhibiting ATF2 impedes melanoma development and elicits tumor suppressor function (Bhoumik et al., 2008) . To act as a tumor suppressor, ATF2 must localize at the mitochondria, and phosphorylation at Thr-52 by PKCε regulates this translocation (Lau et al., 2012) .

Activating transcription factor 2 antibody, Activating transcription factor 2 splice variant ATF2 var2 antibody, ATF 2 antibody, Atf-2 antibody, Atf2 antibody, ATF2 protein antibody, ATF2_HUMAN antibody, cAMP Response Element Binding Protein 2 antibody, cAMP response element binding protein CRE BP1 antibody, cAMP response element-binding protein CRE-BP1 antibody, cAMP responsive element binding protein 2, formerly antibody, cAMP-dependent transcription factor ATF-2 antibody, cAMP-responsive element-binding protein 2 antibody, CRE BP1 antibody, CRE-BP antibody, CREB 2 antibody, CREB-2 antibody, CREB2 antibody, CREBP1 antibody, Cyclic AMP dependent transcription factor ATF 2 antibody, Cyclic AMP-dependent transcription factor ATF-2 antibody, Cyclic AMP-responsive element-binding protein 2 antibody, D130078H02Rik antibody, D18875 antibody, HB 16 antibody, HB16 antibody, Histone acetyltransferase ATF2 antibody, MGC105211 antibody, MGC105222 antibody, MGC111558 antibody, MGC142504 antibody, mXBP antibody, MXBP protein antibody, Tg (Gzma-Klra1) 7Wum antibody, TREB 7 antibody, TREB7 antibody

Synthetic phospho-peptide corresponding to amino acid residues surrounding Thr52 of human ATF2, conjugated to keyhole limpet hemocyanin (KLH) . Immunogen species is Human.

Transcriptional activator which regulates the transcription of various genes, including those involved in anti- apoptosis, cell growth, and DNA damage response. Dependent on its binding partner, binds to CRE (cAMP response element) consensus sequences (5'-TGACGTCA-3') or to AP-1 (activator protein 1) consensus sequences (5'-TGACTCA-3') . In the nucleus, contributes to global transcription and the DNA damage response, in addition to specific transcriptional activities that are related to cell development, proliferation and death. In the cytoplasm, interacts with and perturbs HK1- and VDAC1-containing complexes at the mitochondrial outer membrane, thereby impairing mitochondrial membrane potential, inducing mitochondrial leakage and promoting cell death. The phosphorylated form (mediated by ATM) plays a role in the DNA damage response and is involved in the ionizing radiation (IR) -induced S phase checkpoint control and in the recruitment of the MRN complex into the IR-induced foci (IRIF) . Exhibits histone acetyltransferase (HAT) activity which specifically acetylates histones H2B and H4 in vitro. In concert with CUL3 and RBX1, promotes the degradation of KAT5 thereby attenuating its ability to acetylate and activate ATM. Can elicit oncogenic or tumor suppressor activities depending on the tissue or cell type.

Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C. After date of receipt, stable for at least 1 year at -20°C.

Specific for endogenous levels of the ~72 kDa ATF2 protein phosphorylated at Thr52. Immunolabeling of the ATF2 band is reduced by treatment of the cells with the PKC catalytic inhibitor Gö6850.

Nucleus. Cytoplasm. Mitochondrion outer membrane. Shuttles between the cytoplasm and the nucleus and heterodimerization with JUN is essential for the nuclear localization. Localization to the cytoplasm is observed under conditions of cellular stress and in disease states. Localizes at the mitochondrial outer membrane in response to genotoxic stress. Phosphorylation at Thr-52 is required for its nuclear localization and negatively regulates its mitochondrial localization. Co- localizes with the MRN complex in the IR-induced foci (IRIF) .