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| Death associated protein 6 ： ウィキペディア英語版 |
Death-associated protein 6
Death-associated protein 6 also known as Daxx is a protein that in humans is encoded by the ''DAXX'' gene.
== Function ==
Daxx, a Death domain-associated protein, was first discovered through its cytoplasmic interaction with the classical death receptor Fas. It has been associated with heterochromatin and PML-NBs (Promyelocytic Leukaemia nuclear bodies) and has been implicated in many nuclear processes including transcription and cell cycle regulation.
This gene encodes a multifunctional protein that resides in multiple locations in the nucleus and in the cytoplasm. Daxx serves as an H3.3 specific histone chaperone, interacting with an H3.3/H4 dimer. It interacts with a wide variety of proteins, such as apoptosis antigen Fas, centromere protein C, and transcription factor erythroblastosis virus E26 oncogene homolog 1 (ETS1). In the nucleus, the encoded protein functions as a potent transcription repressor that binds to sumoylated transcription factors. Its repression can be relieved by the sequestration of this protein into promyelocytic leukemia nuclear bodies or nucleoli. This protein also associates with centromeres in G2 phase. In the cytoplasm, the encoded protein may function to regulate apoptosis. The subcellular localization and function of this protein are modulated by post-translational modifications, including sumoylation, phosphorylation and polyubiquitination.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=1616 )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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