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Death domain-associated protein

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Transcription corepressor known to repress transcriptional potential of several sumoylated transcription factors. Down-regulates basal and activated transcription. Its transcription repressor activity is modulated by recruiting it to subnuclear compartments like the nucleolus or PML/POD/ND10 nuclear bodies through interactions with MCSR1 and PML, respectively. Seems to regulate transcription in PML/POD/ND10 nuclear bodies together with PML and may influence TNFRSF6-dependent apoptosis thereby. Inhibits transcriptional activation of PAX3 and ETS1 through direct protein-protein interactions. Modulates PAX5 activity; the function seems to involve CREBBP. Acts as an adapter protein in a MDM2-DAXX-USP7 complex by regulating the RING-finger E3 ligase MDM2 ubiquitination activity. Under non-stress condition, in association with the deubiquitinating USP7, prevents MDM2 self-ubiquitination and enhances the intrinsic E3 ligase activity of MDM2 towards TP53, thereby promoting TP53 ubiquitination and subsequent proteasomal degradation. Upon DNA damage, its association with MDM2 and USP7 is disrupted, resulting in increased MDM2 autoubiquitination and consequently, MDM2 degradation, which leads to TP53 stabilization. Acts as histone chaperone that facilitates deposition of histone H3.3. Acts as targeting component of the chromatin remodeling complex ATRX:DAXX which has ATP-dependent DNA translocase activity and catalyzes the replication-independent deposition of histone H3.3 in pericentric DNA repeats outside S-phase and telomeres, and the in vitro remodeling of H3.3-containing nucleosomes. Does not affect the ATPase activity of ATRX but alleviates its transcription repression activity. Upon neuronal activation associates with regulatory elements of selected immediate early genes where it promotes deposition of histone H3.3 which may be linked to transcriptional induction of these genes. Required for the recruitment of histone H3.3:H4 dimers to PML-nuclear bodies (PML-NBs); the process is independent of ATRX and facilitated by ASF1A; PML-NBs are suggested to function as regulatory sites for the incorporation of newly synthesized histone H3.3 into chromatin. Proposed to mediate activation of the JNK pathway and apoptosis via MAP3K5 in response to signaling from TNFRSF6 and TGFBR2. Interaction with HSPB1/HSP27 may prevent interaction with TNFRSF6 and MAP3K5 and block DAXX-mediated apoptosis. In contrast, in lymphoid cells JNC activation and TNFRSF6-mediated apoptosis may not involve DAXX. Plays a role as a positive regulator of the heat shock transcription factor HSF1 activity during the stress protein response (By similarity).

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Death domain-associated protein 6

 Death domain-associated protein 6 ELISA Kit
 Death domain-associated protein 6 Recombinant
 Death domain-associated protein 6 Antibody
Also known as Death domain-associated protein 6 (Daxx).
DAXX: a transcriptional co-regulatory protein. Proposed to mediate activation of the JNK pathway and apoptosis via ASK1 in response to signaling from FAS and TGF-betaR2. Glucose deprivation activates the ASK1-SEK1-JNK1-HIPK1 pathway, relocalizing Daxx from the nucleus to the cytoplasm, where Daxx binds to ASK1, and subsequently leads to AS
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K1 oligomerization. Interaction with HSP27 may prevent interaction with TGF-betaR2 and ASK1 and block DAXX-mediated apoptosis. Seems to act as a transcriptional co- repressor and inhibits PAX3 and ETS1 through direct protein- protein interaction. Its transcription repressor activity is modulated by recruiting it to subnuclear compartments like the nucleolus or PML/POD/ND10 nuclear bodies through interactions with MCSR1 and PML, respectively. Two alternatively spliced isoforms have been described.

Protein type: Apoptosis; Nuclear receptor co-regulator; Nucleolus; Transcription, coactivator/corepressor

Cellular Component: cell cortex; chromosome, pericentric region; cytoplasm; cytosol; heterochromatin; microtubule; neuron projection; nucleus; PML body; XY body

Molecular Function: androgen receptor binding; enzyme binding; histone binding; JUN kinase binding; kinesin binding; p53 binding; protein binding; protein kinase activator activity; protein kinase binding; protein N-terminus binding; transcription coactivator activity; transcription corepressor activity; transcription factor binding; ubiquitin protein ligase binding

Biological Process: androgen receptor signaling pathway; chromatin remodeling; cytokinesis after mitosis; negative regulation of apoptosis; negative regulation of transcription from RNA polymerase II promoter; negative regulation of transcription, DNA-dependent; nucleosome assembly; PML body organization and biogenesis; positive regulation of apoptosis; positive regulation of histone phosphorylation; positive regulation of protein amino acid phosphorylation; positive regulation of protein kinase activity; positive regulation of transcription from RNA polymerase II promoter; regulation of multicellular organism growth; regulation of protein ubiquitination; regulation of transcription, DNA-dependent
 Daxx ELISA Kit
 Daxx Recombinant
 Daxx Antibody
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