|Other Names||Cyclic AMP-dependent transcription factor ATF-2, cAMP-dependent transcription factor ATF-2, Activating transcription factor 2, Cyclic AMP-responsive element-binding protein 2, CREB-2, cAMP-responsive element-binding protein 2, HB16, Histone acetyltransferase ATF2, cAMP response element-binding protein CRE-BP1, ATF2, CREB2, CREBP1|
|Format||Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.|
|Precautions||This product is for research use only. Not for use in diagnostic or therapeutic procedures.|
|Function||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.|
|Cellular Location||Nucleus. Cytoplasm. Mitochondrion outer membrane. Note=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)|
|Tissue Location||Ubiquitously expressed, with more abundant expression in the brain|
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This gene encodes a transcription factor that is a memberof the leucine zipper family of DNA binding proteins. This proteinbinds to the cAMP-responsive element (CRE), an octamericpalindrome. The protein forms a homodimer or heterodimer with c-Junand stimulates CRE-dependent transcription. The protein is also ahistone acetyltransferase (HAT) that specifically acetylateshistones H2B and H4 in vitro; thus it may represent a class ofsequence-specific factors that activate transcription by directeffects on chromatin components. Additional transcript variantshave been identified but their biological validity has not beendetermined.
Bailey, S.D., et al. Diabetes Care 33(10):2250-2253(2010)Carrillo, R.J., et al. Biophys. Chem. 151(3):149-154(2010)Lee, S.H., et al. Oncogene 29(37):5182-5192(2010)Salameh, A., et al. J. Biol. Chem. 285(30):23096-23104(2010)Bolat, I., et al. Folia Histochem. Cytobiol. 48(2):197-201(2010)
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