Rabbit anti- ATF2 Polyclonal Antibody

Uniprot Id

P15336

Target Species

Human

Target Name

ATF2

Target Full Name

Cyclic AMP-dependent transcription factor ATF-2

Target 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.

Target Subcellular 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).

Target Protein Families

BZIP family, ATF subfamily

Target Tissue Specificity

Ubiquitously expressed, with more abundant expression in the brain.

Target Research Area

Transcription

Target Synonyms

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

Target Background

This gene encodes a transcription factor that is a member of the leucine zipper family of DNA binding proteins. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions This protein binds to the cAMP-responsive element (CRE), an octameric palindrome. It forms a homodimer or a heterodimer with c-Jun and stimulates CRE-dependent transcription. This protein is also a histone acetyltransferase (HAT) that specifically acetylates histones H2B and H4 in vitro; thus it may represent a class of sequence-specific factors that activate transcription by direct effects on chromatin components. The encoded protein may also be involved in cell's DNA damage response independent of its role in transcriptional regulation. Several alternatively spliced transcript variants have been found for this gene