DAXX (death-associated protein 6)

2009-01-01   Eunhee Kim 

School of Bioscience & Biotechnology, Chungnam National University, 220 Goong-dong, Yusung-gu, Daejeon, 305-764, Korea (South)

Identity

HGNC
LOCATION
6p21.32
IMAGE
Atlas Image
LOCUSID
ALIAS
BING2,DAP6,EAP1,SMIM40
FUSION GENES

DNA/RNA

Atlas Image

Description

Daxx gene has 8 exons on chromosome 6. The sizes of the exons are 66, 256, 832, 212, 214, 475, 223 and 191 bps.

Transcription

2,477 bp mRNA.
Two alternative transcripts:
1. Isoform 1 has been chosen as the canonical sequence
2. Isoform 2 differs from the canonical sequence as follows:
696-740: SSLCIPSPARLSQTPHSQPPRPGTCKTSVATQCDPEEIIVLSDSDPAKNLGRRRSKQDQG

Proteins

Atlas Image

Description

740 amino acids, 82.2 kDa; contains in 3 coiled coils (residues 180-217, 358-399 and 430-489), and 2 nuclear localisation signals (residues 391-395 and 628-634).

Expression

Ubiquitous.

Localisation

Nucleus and cytoplasm.
Note: Dispersed throughout the nucleoplasm, in PML/POD/ND10 nuclear bodies, and in nucleoli.
Colocalizes with a subset of interphase centromeres, but is absent from mitotic centromeres.
Detected in the cytoplasmic punctate structures.
Translocated from the nucleus to the cytoplasm upon glucose deprivation or ischemic stress.

Function

  • Interaction with Fas death domain and induces Fas-mediated cell death.
  • Establishes Fas-Daxx-ASK1-JNK axis.
  • Implicated in ischemic cell death. Daxx translocates from the nucleus to the cytoplasm upon ischemic stress. Cytoplasmic Daxx interacts with NHE1 and stimulates the NHE1 transporter activity and suppresses the NHE1-ezrin-AKT1 pathway.
  • Associated with the PML body in the nucleus.
  • Interacts with SUMO1 and UBC9 and is sumorylated at K630 and 631. However, the sumoylation status does not determine its localization onto the PML body.
  • Mediates SUMO-dependent transcriptional control and subnuclear compartmentalization.
  • Suppresses cell death in the early embryo.
  • Daxx silencing sensitizes cells to Fas- and stress-induced cell death through caspase activation, cytochrome C release and JNK activation.
  • Homology

    Holomogy with Pan troglodytes (99%); Canis lupus familiaris (89%); Bos taurus (83%); Mus musculus (70%), Rattus norvegicus (73%).

    Mutations

    Note

    Substitutions (see the external links).

    Implicated in

    Disease
    Daxx is a component of the promyelocytic leukemia protein (PML) nuclear bodies (NBs).
    Entity name
    Alpha-thalassemia
    Disease
    Daxx complex is a novel ATP-dependent chromatin-remodeling complex, with alpha-thalassaemia syndrome protein (ATRX) being the core ATPase subunit and Daxx being the targeting subunit.
    Entity name
    Leukemia
    Disease
    Daxx protein was expressed in 38.0% of 50 children with acute leukemia, which was significantly higher than that of the control group (5.0%) (P < 0.05). Daxx expression is abnormal in children with acute leukemia and associated with some clinical features of acute leukemia, suggesting that it may play an important role in the genesis and development of acute leukemia.

    Bibliography

    Pubmed IDLast YearTitleAuthors
    175963072007Human cytomegalovirus gene expression is silenced by Daxx-mediated intrinsic immune defense in model latent infections established in vitro.Saffert RT et al
    164065232006Daxx: death or survival protein?Salomoni P et al
    1806980020084-Hydroxynonenal self-limits fas-mediated DISC-independent apoptosis by promoting export of Daxx from the nucleus to the cytosol and its binding to Fas.Sharma R et al
    180312302007Daxx mediates SUMO-dependent transcriptional control and subnuclear compartmentalization.Shih HM et al
    159987992005Dissociation of Akt1 from its negative regulator JIP1 is mediated through the ASK1-MEK-JNK signal transduction pathway during metabolic oxidative stress: a negative feedback loop.Song JJ et al
    118811502001[Monoclonal antibodies against protein Daxx and its localization in nuclear domains 10].Sotnikov AG et al
    124779322002Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.Strausberg RL et al
    173701202007Anti-apoptotic effects of probucol are associated with downregulation of Daxx expression in THP-1 macrophage.Su B et al
    93731491997Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library.Suzuki Y et al
    150771452004PML nuclear bodies and apoptosis.Takahashi Y et al
    158781632005The death domain-associated protein modulates activity of the transcription co-factor Skip/NcoA62.Tang J et al
    149905862004A novel transcription regulatory complex containing death domain-associated protein and the ATR-X syndrome protein.Tang J et al
    179425422008Nuclear domain 10 components promyelocytic leukemia protein and hDaxx independently contribute to an intrinsic antiviral defense against human cytomegalovirus infection.Tavalai N et al
    105451151999Human Daxx regulates Fas-induced apoptosis from nuclear PML oncogenic domains (PODs).Torii S et al
    182006672008Effect of Daxx on cholesterol accumulation in hepatic cells.Tuo QH et al
    165696392006Physiological and functional interactions between Tcf4 and Daxx in colon cancer cells.Tzeng SL et al
    109037352000Fas ligand-induced c-Jun kinase activation in lymphoid cells requires extensive receptor aggregation but is independent of DAXX, and Fas-mediated cell death does not involve DAXX, RIP, or RAIDD.Villunger A et al
    170352422006Human Daxx-mediated repression of human cytomegalovirus gene expression correlates with a repressive chromatin structure around the major immediate early promoter.Woodhall DL et al
    124074422002Ultraviolet radiation-induced apoptosis is mediated by Daxx.Wu S et al
    129531022003The ATRX syndrome protein forms a chromatin-remodeling complex with Daxx and localizes in promyelocytic leukemia nuclear bodies.Xue Y et al
    92156291997Daxx, a novel Fas-binding protein that activates JNK and apoptosis.Yang X et al
    120868722002Classification, subtype discovery, and prediction of outcome in pediatric acute lymphoblastic leukemia by gene expression profiling.Yeoh EJ et al
    176613482008Daxx contains two nuclear localization signals and interacts with importin alpha3.Yeung PL et al
    145576652003Adenovirus E1B 55-kilodalton oncoprotein binds to Daxx and eliminates enhancement of p53-dependent transcription by Daxx.Zhao LY et al
    106848552000Promyelocytic leukemia protein (PML) and Daxx participate in a novel nuclear pathway for apoptosis.Zhong S et al
    173890202007Sequence variation within the major histocompatibility complex subregion centromeric of HLA class II in type 1 diabetes.van der Slik AR et al

    Other Information

    Locus ID:

    NCBI: 1616
    MIM: 603186
    HGNC: 2681
    Ensembl: ENSG00000204209

    Variants:

    dbSNP: 1616
    ClinVar: 1616
    TCGA: ENSG00000204209
    COSMIC: DAXX

    RNA/Proteins

    Gene IDTranscript IDUniprot
    ENSG00000204209ENST00000266000Q9UER7
    ENSG00000204209ENST00000266000A0A024RCS3
    ENSG00000204209ENST00000374542Q9UER7
    ENSG00000204209ENST00000374542A0A024RCS3
    ENSG00000204209ENST00000414083Q9UER7
    ENSG00000204209ENST00000446403Q4VX54
    ENSG00000204209ENST00000446511A2AB94
    ENSG00000204209ENST00000620164Q9UER7

    Expression (GTEx)

    0
    10
    20
    30
    40
    50
    60
    70
    80

    Pathways

    PathwaySourceExternal ID
    MAPK signaling pathwayKEGGko04010
    ApoptosisKEGGko04210
    Amyotrophic lateral sclerosis (ALS)KEGGko05014
    MAPK signaling pathwayKEGGhsa04010
    ApoptosisKEGGhsa04210
    Amyotrophic lateral sclerosis (ALS)KEGGhsa05014
    Herpes simplex infectionKEGGko05168
    Herpes simplex infectionKEGGhsa05168
    Gene ExpressionREACTOMER-HSA-74160
    Generic Transcription PathwayREACTOMER-HSA-212436
    Transcriptional Regulation by TP53REACTOMER-HSA-3700989
    Regulation of TP53 ActivityREACTOMER-HSA-5633007
    Regulation of TP53 Expression and DegradationREACTOMER-HSA-6806003
    Regulation of TP53 DegradationREACTOMER-HSA-6804757

    Protein levels (Protein atlas)

    Not detected
    Low
    Medium
    High

    References

    Pubmed IDYearTitleCitations
    212523152011DAXX/ATRX, MEN1, and mTOR pathway genes are frequently altered in pancreatic neuroendocrine tumors.498
    217196412011Altered telomeres in tumors with ATRX and DAXX mutations.331
    205049012010The death-associated protein DAXX is a novel histone chaperone involved in the replication-independent deposition of H3.3.271
    92156291997Daxx, a novel Fas-binding protein that activates JNK and apoptosis.209
    170819862006Role of SUMO-interacting motif in Daxx SUMO modification, subnuclear localization, and repression of sumoylated transcription factors.182
    129531022003The ATRX syndrome protein forms a chromatin-remodeling complex with Daxx and localizes in promyelocytic leukemia nuclear bodies.143
    121402632002Daxx and histone deacetylase II associate with chromatin through an interaction with core histones and the chromatin-associated protein Dek.113
    230758512012DAXX envelops a histone H3.3-H4 dimer for H3.3-specific recognition.105
    201473992010Regulation of ICP0-null mutant herpes simplex virus type 1 infection by ND10 components ATRX and hDaxx.103
    245303022014Mislocalization of the centromeric histone variant CenH3/CENP-A in human cells depends on the chaperone DAXX.95

    Citation

    Eunhee Kim

    DAXX (death-associated protein 6)

    Atlas Genet Cytogenet Oncol Haematol. 2009-01-01

    Online version: http://atlasgeneticsoncology.org/gene/40265/cancer-prone-explorer/gene-explorer/