GenomeNet

Database: UniProt
Entry: Q9UBX2
LinkDB: Q9UBX2
Original site: Q9UBX2 
ID   DUX4_HUMAN              Reviewed;         424 AA.
AC   Q9UBX2; E2JJS1;
DT   17-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2001, sequence version 2.
DT   24-JAN-2024, entry version 169.
DE   RecName: Full=Double homeobox protein 4 {ECO:0000312|HGNC:HGNC:50800};
DE   AltName: Full=Double homeobox protein 10 {ECO:0000312|EMBL:AAK91509.1};
GN   Name=DUX4 {ECO:0000312|HGNC:HGNC:50800}; Synonyms=DUX10;
OS   Homo sapiens (Human).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC   Homo.
OX   NCBI_TaxID=9606;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND INVOLVEMENT IN FSHD1.
RX   PubMed=10433963; DOI=10.1016/s0378-1119(99)00267-x;
RA   Gabrieels J., Beckers M.-C., Ding H., De Vriese A., Plaisance S.,
RA   van der Maarel S.M., Padberg G.W., Frants R.R., Hewitt J.E., Collen D.,
RA   Belayew A.;
RT   "Nucleotide sequence of the partially deleted D4Z4 locus in a patient with
RT   FSHD identifies a putative gene within each 3.3 kb element.";
RL   Gene 236:25-32(1999).
RN   [2] {ECO:0000312|EMBL:ADN68617.1}
RP   NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), ALTERNATIVE SPLICING, SUBCELLULAR
RP   LOCATION, TISSUE SPECIFICITY, AND DEVELOPMENTAL STAGE (ISOFORMS 1 AND 2).
RC   TISSUE=Skeletal muscle {ECO:0000312|EMBL:ADN68617.1};
RX   PubMed=21060811; DOI=10.1371/journal.pgen.1001181;
RA   Snider L., Geng L.N., Lemmers R.J., Kyba M., Ware C.B., Nelson A.M.,
RA   Tawil R., Filippova G.N., van der Maarel S.M., Tapscott S.J., Miller D.G.;
RT   "Facioscapulohumeral dystrophy: incomplete suppression of a retrotransposed
RT   gene.";
RL   PLoS Genet. 6:E1001181-E1001181(2010).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Leclercq I., Matteotti C., Deneubourg G., Leo O., Van der Maarel S.M.,
RA   Frants R.R., Padberg G.W., Coppee F., Belayew A.;
RT   "A subtelomeric exchange between chromosomes 4q35 and 10q26 observed in a
RT   patient with FSHD maintains a double homeobox (DUX) gene within the 3.3 kb
RT   repeats of the D4Z4 locus.";
RL   Submitted (JUN-2001) to the EMBL/GenBank/DDBJ databases.
RN   [4]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=15815621; DOI=10.1038/nature03466;
RA   Hillier L.W., Graves T.A., Fulton R.S., Fulton L.A., Pepin K.H., Minx P.,
RA   Wagner-McPherson C., Layman D., Wylie K., Sekhon M., Becker M.C.,
RA   Fewell G.A., Delehaunty K.D., Miner T.L., Nash W.E., Kremitzki C., Oddy L.,
RA   Du H., Sun H., Bradshaw-Cordum H., Ali J., Carter J., Cordes M., Harris A.,
RA   Isak A., van Brunt A., Nguyen C., Du F., Courtney L., Kalicki J.,
RA   Ozersky P., Abbott S., Armstrong J., Belter E.A., Caruso L., Cedroni M.,
RA   Cotton M., Davidson T., Desai A., Elliott G., Erb T., Fronick C., Gaige T.,
RA   Haakenson W., Haglund K., Holmes A., Harkins R., Kim K., Kruchowski S.S.,
RA   Strong C.M., Grewal N., Goyea E., Hou S., Levy A., Martinka S., Mead K.,
RA   McLellan M.D., Meyer R., Randall-Maher J., Tomlinson C.,
RA   Dauphin-Kohlberg S., Kozlowicz-Reilly A., Shah N., Swearengen-Shahid S.,
RA   Snider J., Strong J.T., Thompson J., Yoakum M., Leonard S., Pearman C.,
RA   Trani L., Radionenko M., Waligorski J.E., Wang C., Rock S.M.,
RA   Tin-Wollam A.-M., Maupin R., Latreille P., Wendl M.C., Yang S.-P., Pohl C.,
RA   Wallis J.W., Spieth J., Bieri T.A., Berkowicz N., Nelson J.O., Osborne J.,
RA   Ding L., Meyer R., Sabo A., Shotland Y., Sinha P., Wohldmann P.E.,
RA   Cook L.L., Hickenbotham M.T., Eldred J., Williams D., Jones T.A., She X.,
RA   Ciccarelli F.D., Izaurralde E., Taylor J., Schmutz J., Myers R.M.,
RA   Cox D.R., Huang X., McPherson J.D., Mardis E.R., Clifton S.W., Warren W.C.,
RA   Chinwalla A.T., Eddy S.R., Marra M.A., Ovcharenko I., Furey T.S.,
RA   Miller W., Eichler E.E., Bork P., Suyama M., Torrents D., Waterston R.H.,
RA   Wilson R.K.;
RT   "Generation and annotation of the DNA sequences of human chromosomes 2 and
RT   4.";
RL   Nature 434:724-731(2005).
RN   [5]
RP   SUBCELLULAR LOCATION.
RX   PubMed=15709750; DOI=10.1021/bi047992w;
RA   Oestlund C., Garcia-Carrasquillo R.M., Belayew A., Worman H.J.;
RT   "Intracellular trafficking and dynamics of double homeodomain proteins.";
RL   Biochemistry 44:2378-2384(2005).
RN   [6]
RP   FUNCTION, SUBCELLULAR LOCATION, AND TISSUE SPECIFICITY.
RX   PubMed=17984056; DOI=10.1073/pnas.0708659104;
RA   Dixit M., Ansseau E., Tassin A., Winokur S., Shi R., Qian H., Sauvage S.,
RA   Matteotti C., van Acker A.M., Leo O., Figlewicz D., Barro M.,
RA   Laoudj-Chenivesse D., Belayew A., Coppee F., Chen Y.W.;
RT   "DUX4, a candidate gene of facioscapulohumeral muscular dystrophy, encodes
RT   a transcriptional activator of PITX1.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:18157-18162(2007).
RN   [7]
RP   INVOLVEMENT IN FSHD1.
RX   PubMed=19320656; DOI=10.1111/j.1399-0004.2009.01158.x;
RA   Mostacciuolo M.L., Pastorello E., Vazza G., Miorin M., Angelini C.,
RA   Tomelleri G., Galluzzi G., Trevisan C.P.;
RT   "Facioscapulohumeral muscular dystrophy: epidemiological and molecular
RT   study in a north-east Italian population sample.";
RL   Clin. Genet. 75:550-555(2009).
RN   [8]
RP   FUNCTION.
RX   PubMed=24145033; DOI=10.1074/jbc.m113.504522;
RA   Dmitriev P., Stankevicins L., Ansseau E., Petrov A., Barat A., Dessen P.,
RA   Robert T., Turki A., Lazar V., Labourer E., Belayew A., Carnac G.,
RA   Laoudj-Chenivesse D., Lipinski M., Vassetzky Y.S.;
RT   "Defective regulation of microRNA target genes in myoblasts from
RT   facioscapulohumeral dystrophy patients.";
RL   J. Biol. Chem. 288:34989-35002(2013).
RN   [9]
RP   FUNCTION, AND SUBCELLULAR LOCATION.
RX   PubMed=27378237; DOI=10.1038/mt.2016.111;
RA   Chen J.C., King O.D., Zhang Y., Clayton N.P., Spencer C., Wentworth B.M.,
RA   Emerson C.P. Jr., Wagner K.R.;
RT   "Morpholino-mediated Knockdown of DUX4 Toward Facioscapulohumeral Muscular
RT   Dystrophy Therapeutics.";
RL   Mol. Ther. 24:1405-1411(2016).
RN   [10]
RP   FUNCTION, INTERACTION WITH EP300 AND CREBBP, DOMAIN, SUBCELLULAR LOCATION,
RP   AND MUTAGENESIS OF 159-GLN--GLN-326; 159-GLN--GLY-371 AND 327-ALA--LEU-424.
RX   PubMed=26951377; DOI=10.1093/nar/gkw141;
RA   Choi S.H., Gearhart M.D., Cui Z., Bosnakovski D., Kim M., Schennum N.,
RA   Kyba M.;
RT   "DUX4 recruits p300/CBP through its C-terminus and induces global H3K27
RT   acetylation changes.";
RL   Nucleic Acids Res. 44:5161-5173(2016).
RN   [11]
RP   FUNCTION.
RX   PubMed=28935672; DOI=10.1242/jcs.205427;
RA   Bosnakovski D., Toso E.A., Hartweck L.M., Magli A., Lee H.A.,
RA   Thompson E.R., Dandapat A., Perlingeiro R.C.R., Kyba M.;
RT   "The DUX4 homeodomains mediate inhibition of myogenesis and are
RT   functionally exchangeable with the Pax7 homeodomain.";
RL   J. Cell Sci. 130:3685-3697(2017).
RN   [12]
RP   FUNCTION, DEVELOPMENTAL STAGE, AND SUBCELLULAR LOCATION.
RX   PubMed=28459457; DOI=10.1038/ng.3844;
RA   Hendrickson P.G., Dorais J.A., Grow E.J., Whiddon J.L., Lim J.W.,
RA   Wike C.L., Weaver B.D., Pflueger C., Emery B.R., Wilcox A.L., Nix D.A.,
RA   Peterson C.M., Tapscott S.J., Carrell D.T., Cairns B.R.;
RT   "Conserved roles of mouse DUX and human DUX4 in activating cleavage-stage
RT   genes and MERVL/HERVL retrotransposons.";
RL   Nat. Genet. 49:925-934(2017).
RN   [13]
RP   FUNCTION.
RX   PubMed=28459454; DOI=10.1038/ng.3846;
RA   Whiddon J.L., Langford A.T., Wong C.J., Zhong J.W., Tapscott S.J.;
RT   "Conservation and innovation in the DUX4-family gene network.";
RL   Nat. Genet. 49:935-940(2017).
RN   [14]
RP   FUNCTION (ISOFORMS 1 AND 2), SUBCELLULAR LOCATION (ISOFORMS 1 AND 2),
RP   DOMAIN, AND MUTAGENESIS OF 160-ALA--ALA-342; 374-LEU--LEU-424 AND
RP   405-ALA--LEU-424.
RX   PubMed=29618456; DOI=10.1242/bio.033977;
RA   Mitsuhashi H., Ishimaru S., Homma S., Yu B., Honma Y., Beermann M.L.,
RA   Miller J.B.;
RT   "Functional domains of the FSHD-associated DUX4 protein.";
RL   Biol. Open 7:0-0(2018).
RN   [15] {ECO:0007744|PDB:5Z6Z}
RP   X-RAY CRYSTALLOGRAPHY (2.30 ANGSTROMS) OF 1-153 IN COMPLEX WITH DNA,
RP   SUBUNIT, DOMAIN, AND MUTAGENESIS OF ARG-20; ARG-23; TRP-26; ASN-69; ARG-95;
RP   ARG-98; ASN-144 AND ARG-148.
RX   PubMed=30322619; DOI=10.1016/j.bbrc.2018.10.056;
RA   Li Y., Wu B., Liu H., Gao Y., Yang C., Chen X., Zhang J., Chen Y., Gu Y.,
RA   Li J., Ma J., Gan J.;
RT   "Structural basis for multiple gene regulation by human DUX4.";
RL   Biochem. Biophys. Res. Commun. 505:1161-1167(2018).
RN   [16] {ECO:0007744|PDB:6E8C}
RP   X-RAY CRYSTALLOGRAPHY (2.12 ANGSTROMS) OF 17-155 IN COMPLEX WITH DNA,
RP   FUNCTION, SUBUNIT, DOMAIN, AND MUTAGENESIS OF ARG-145 AND ALA-147.
RX   PubMed=30540931; DOI=10.1016/j.celrep.2018.11.060;
RA   Lee J.K., Bosnakovski D., Toso E.A., Dinh T., Banerjee S., Bohl T.E.,
RA   Shi K., Orellana K., Kyba M., Aihara H.;
RT   "Crystal Structure of the Double Homeodomain of DUX4 in Complex with DNA.";
RL   Cell Rep. 25:2955-2962(2018).
RN   [17] {ECO:0007744|PDB:5Z2S, ECO:0007744|PDB:5Z2T}
RP   X-RAY CRYSTALLOGRAPHY (1.50 ANGSTROMS) OF 100-150 IN COMPLEX WITH DNA,
RP   FUNCTION, AND MUTAGENESIS OF ARG-95; ARG-96; LYS-97; ARG-98; GLN-143;
RP   ASN-144 AND ARG-148.
RX   PubMed=29572508; DOI=10.1038/s41375-018-0093-1;
RA   Dong X., Zhang W., Wu H., Huang J., Zhang M., Wang P., Zhang H., Chen Z.,
RA   Chen S.J., Meng G.;
RT   "Structural basis of DUX4/IGH-driven transactivation.";
RL   Leukemia 32:1466-1476(2018).
RN   [18] {ECO:0007744|PDB:6DFY}
RP   X-RAY CRYSTALLOGRAPHY (2.62 ANGSTROMS) OF 94-153 IN COMPLEX WITH DNA.
RX   PubMed=30054554; DOI=10.1038/s41375-018-0217-7;
RA   Aihara H., Shi K., Lee J.K., Bosnakovski D., Kyba M.;
RT   "Comment on structural basis of DUX4/IGH-driven transactivation.";
RL   Leukemia 32:2090-2092(2018).
RN   [19] {ECO:0007744|PDB:6A8R}
RP   X-RAY CRYSTALLOGRAPHY (1.60 ANGSTROMS) OF 94-153 IN COMPLEX WITH DNA, AND
RP   FUNCTION.
RX   PubMed=30315230; DOI=10.1038/s41375-018-0273-z;
RA   Dong X., Zhang H., Cheng N., Li K., Meng G.;
RT   "DUX4HD2-DNAERG structure reveals new insight into DUX4-Responsive-
RT   Element.";
RL   Leukemia 33:550-553(2019).
CC   -!- FUNCTION: [Isoform 1]: Transcription factor that is selectively and
CC       transiently expressed in cleavage-stage embryos (PubMed:28459457).
CC       Binds to double-stranded DNA elements with the consensus sequence 5'-
CC       TAATCTAATCA-3' (PubMed:28459457, PubMed:28459454, PubMed:29572508,
CC       PubMed:30540931, PubMed:30315230). Binds to chromatin containing
CC       histone H3 acetylated at 'Lys-27' (H3K27ac) and promotes deacetylation
CC       of H3K27ac. In parallel, binds to chromatin that lacks histone H3
CC       acetylation at 'Lys-27' (H3K27ac) and recruits EP300 and CREBBP to
CC       promote acetylation of histone H3 at 'Lys-27' at new sites
CC       (PubMed:26951377). Involved in transcriptional regulation of numerous
CC       genes, primarily as transcriptional activator, but mediates also
CC       repression of a set of target genes (PubMed:17984056, PubMed:27378237,
CC       PubMed:26951377, PubMed:28459457, PubMed:28459454, PubMed:29618456,
CC       PubMed:30540931, PubMed:29572508). Promotes expression of ZSCAN4 and
CC       KDM4E, two proteins with essential roles during early embryogenesis
CC       (PubMed:27378237, PubMed:26951377, PubMed:28459457, PubMed:29618456).
CC       Heterologous expression in cultured embryonic stem cells mediates also
CC       transcription of HERVL retrotransposons and transcripts derived from
CC       ACRO1 and HSATII satellite repeats (PubMed:28459457). May activate
CC       expression of PITX1 (PubMed:17984056). May regulate microRNA (miRNA)
CC       expression (PubMed:24145033). Inappropriate expression can inhibit
CC       myogenesis and promote apoptosis (PubMed:26951377, PubMed:28935672,
CC       PubMed:29618456). {ECO:0000269|PubMed:17984056,
CC       ECO:0000269|PubMed:24145033, ECO:0000269|PubMed:26951377,
CC       ECO:0000269|PubMed:27378237, ECO:0000269|PubMed:28459454,
CC       ECO:0000269|PubMed:28459457, ECO:0000269|PubMed:28935672,
CC       ECO:0000269|PubMed:29572508, ECO:0000269|PubMed:29618456,
CC       ECO:0000269|PubMed:30315230, ECO:0000269|PubMed:30540931}.
CC   -!- FUNCTION: [Isoform 2]: Probably inactive as a transcriptional
CC       activator, due to the absence of the C-terminal region that is
CC       important for transcriptional activation. Can inhibit transcriptional
CC       activation mediated by isoform 1. Heterologous expression of isoform 2
CC       has no deleterious effect on cell survival.
CC       {ECO:0000269|PubMed:29618456}.
CC   -!- SUBUNIT: Binds DNA as a monomer (PubMed:30322619, PubMed:30540931).
CC       Interacts (via C-terminus) with EP300 and CREBBP (PubMed:26951377).
CC       {ECO:0000269|PubMed:26951377, ECO:0000269|PubMed:30322619,
CC       ECO:0000269|PubMed:30540931}.
CC   -!- INTERACTION:
CC       Q9UBX2; P17661: DES; NbExp=3; IntAct=EBI-11600078, EBI-1055572;
CC       Q9UBX2; P31001: Des; Xeno; NbExp=2; IntAct=EBI-11600078, EBI-298565;
CC   -!- SUBCELLULAR LOCATION: [Isoform 1]: Nucleus {ECO:0000255|PROSITE-
CC       ProRule:PRU00108, ECO:0000269|PubMed:15709750,
CC       ECO:0000269|PubMed:17984056, ECO:0000269|PubMed:21060811,
CC       ECO:0000269|PubMed:26951377, ECO:0000269|PubMed:27378237,
CC       ECO:0000269|PubMed:28459457, ECO:0000269|PubMed:29618456}.
CC       Note=Actively transported through the nuclear pore complex (NPC).
CC       {ECO:0000305|PubMed:15709750}.
CC   -!- SUBCELLULAR LOCATION: [Isoform 2]: Nucleus
CC       {ECO:0000269|PubMed:29618456, ECO:0000305|PubMed:15709750}.
CC   -!- ALTERNATIVE PRODUCTS:
CC       Event=Alternative splicing; Named isoforms=2;
CC       Name=1; Synonyms=DUX4-fl {ECO:0000303|PubMed:21060811};
CC         IsoId=Q9UBX2-1; Sequence=Displayed;
CC       Name=2; Synonyms=DUX4-s {ECO:0000303|PubMed:21060811};
CC         IsoId=Q9UBX2-2; Sequence=VSP_060075, VSP_060076;
CC   -!- TISSUE SPECIFICITY: Isoform 1: Does not seem to be expressed in normal
CC       muscle, but is detected in muscle of individuals with FSHD, and also in
CC       testis (at protein level) (PubMed:21060811, PubMed:17984056). Isoform
CC       1: Does not seem to be expressed in normal muscle, but in muscle of
CC       individuals with FSHD, where it may be toxic to cells (PubMed:21060811,
CC       PubMed:17984056). Isoform 2: Detected in skeletal muscle, fibroblasts
CC       and testis from healthy individuals (PubMed:21060811).
CC       {ECO:0000269|PubMed:17984056, ECO:0000269|PubMed:21060811}.
CC   -!- DEVELOPMENTAL STAGE: Isoform 1: Detected in embryos at the 4-cell
CC       stage. Not detected in embryos at the 2-cell stage, or at the 8-cell
CC       stage (at protein level). Detected in embryos at the 4-cell stage. Not
CC       detected in embryos at the 2-cell stage, or at the 8-cell stage
CC       (PubMed:28459457). Detected in induced pluripotent (iPS) cells, but
CC       expression is suppressed upon differentiation to embryoid bodies.
CC       Isoform 2: Detected in embryoid bodies derived from induced pluripotent
CC       (iPS) cells, but not in the induced pluripotent (iPS) cells themselves
CC       (PubMed:21060811). {ECO:0000269|PubMed:21060811,
CC       ECO:0000269|PubMed:28459457}.
CC   -!- DOMAIN: The two homeobox domains are arranged in a head-to-head
CC       orientation when bound to double-stranded DNA, each domain binding to
CC       one of the two DNA strands. Together, the homeobox domains can be
CC       considered to bind DNA with the consensus sequence 5'-TAATCTAATCA-3',
CC       but due to the head-to-head orientation of the DNA-bound domains, the
CC       first homeobox domain binds to the consensus sequence 5'-TAAT-3', and
CC       the second homeobox domain binds DNA on the opposite strand, with the
CC       consensus sequence 5'-TGAT-3' (PubMed:30322619, PubMed:30540931). Both
CC       homeobox domains confer nuclear targeting (PubMed:15709750).
CC       {ECO:0000269|PubMed:15709750, ECO:0000269|PubMed:30322619,
CC       ECO:0000269|PubMed:30540931}.
CC   -!- DOMAIN: The C-terminal region is required for efficient activation of
CC       transcription from target promoters (PubMed:26951377, PubMed:29618456).
CC       It mediates interaction with EP300 and CREBBP (PubMed:26951377).
CC       {ECO:0000269|PubMed:26951377, ECO:0000269|PubMed:29618456}.
CC   -!- DISEASE: Facioscapulohumeral muscular dystrophy 1 (FSHD1) [MIM:158900]:
CC       A degenerative muscle disease characterized by slowly progressive
CC       weakness of the muscles of the face, upper-arm, and shoulder girdle.
CC       The onset of symptoms usually occurs in the first or second decade of
CC       life. Affected individuals usually present with impairment of upper
CC       extremity elevation. This tends to be followed by facial weakness,
CC       primarily involving the orbicularis oris and orbicularis oculi muscles.
CC       {ECO:0000269|PubMed:10433963, ECO:0000269|PubMed:19320656}. Note=The
CC       gene represented in this entry is involved in disease pathogenesis. The
CC       disease is caused by deletion of an integral number of units of a 3.3-
CC       kb tandem repeats, termed D4Z4 macrosatellite, located on chromosome
CC       4q35. In unaffected subjects, the D4Z4 array consists of 11-150
CC       repeats, while in FSHD1 patients, the array is reduced to 1-10 repeats
CC       (PubMed:19320656). DUX4 is located in D4Z4 macrosatellite which is
CC       epigenetically repressed in somatic tissues. D4Z4 chromatin relaxation
CC       in FSHD1 results in inefficient epigenetic repression of DUX4 and a
CC       variegated pattern of DUX4 protein expression in a subset of skeletal
CC       muscle nuclei. Ectopic expression of DUX4 in skeletal muscle activates
CC       the expression of stem cell and germline genes, and, when overexpressed
CC       in somatic cells, DUX4 can ultimately lead to cell death.
CC       {ECO:0000269|PubMed:19320656}.
CC   -!- MISCELLANEOUS: DUX genes are present in 3.3-kilobase elements, a tandem
CC       repeat family scattered in the genome found on the short arms of all
CC       acrocentric chromosomes as well as on several other chromosomes.
CC       {ECO:0000269|PubMed:10433963, ECO:0000269|PubMed:17984056,
CC       ECO:0000269|PubMed:19320656, ECO:0000269|PubMed:21060811}.
CC   -!- SIMILARITY: Belongs to the paired homeobox family. {ECO:0000305}.
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DR   EMBL; AF117653; AAD54067.2; -; Genomic_DNA.
DR   EMBL; HQ266762; ADN68617.1; -; mRNA.
DR   EMBL; AF117653; AAD54068.2; -; Genomic_DNA.
DR   EMBL; AY044051; AAK91509.1; -; Genomic_DNA.
DR   EMBL; AC215524; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   CCDS; CCDS77990.1; -. [Q9UBX2-1]
DR   CCDS; CCDS93681.1; -. [Q9UBX2-2]
DR   RefSeq; NP_001280727.1; NM_001293798.2. [Q9UBX2-1]
DR   RefSeq; NP_001292997.1; NM_001306068.2. [Q9UBX2-1]
DR   RefSeq; XP_011529816.1; XM_011531514.2.
DR   RefSeq; XP_016885822.1; XM_017030333.1.
DR   RefSeq; XP_016885823.1; XM_017030334.1.
DR   RefSeq; XP_016885824.1; XM_017030335.1.
DR   RefSeq; XP_016885825.1; XM_017030336.1.
DR   RefSeq; XP_016885826.1; XM_017030337.1.
DR   RefSeq; XP_016885827.1; XM_017030338.1.
DR   RefSeq; XP_016885828.1; XM_017030339.1.
DR   RefSeq; XP_016885829.1; XM_017030340.1.
DR   PDB; 5Z2S; X-ray; 1.50 A; A=100-150.
DR   PDB; 5Z2T; X-ray; 2.62 A; C/D=94-153.
DR   PDB; 5Z6Z; X-ray; 2.30 A; A=1-153.
DR   PDB; 5ZFW; X-ray; 2.10 A; A=1-149.
DR   PDB; 5ZFY; X-ray; 2.30 A; A=1-149.
DR   PDB; 5ZFZ; X-ray; 1.90 A; A=1-149.
DR   PDB; 6A8R; X-ray; 1.60 A; A/B=94-153.
DR   PDB; 6DFY; X-ray; 2.62 A; C/D=94-153.
DR   PDB; 6E8C; X-ray; 2.12 A; A=17-155.
DR   PDB; 6U81; X-ray; 2.34 A; A=19-150.
DR   PDB; 6U82; X-ray; 3.21 A; A/D=17-150.
DR   PDBsum; 5Z2S; -.
DR   PDBsum; 5Z2T; -.
DR   PDBsum; 5Z6Z; -.
DR   PDBsum; 5ZFW; -.
DR   PDBsum; 5ZFY; -.
DR   PDBsum; 5ZFZ; -.
DR   PDBsum; 6A8R; -.
DR   PDBsum; 6DFY; -.
DR   PDBsum; 6E8C; -.
DR   PDBsum; 6U81; -.
DR   PDBsum; 6U82; -.
DR   AlphaFoldDB; Q9UBX2; -.
DR   SMR; Q9UBX2; -.
DR   BioGRID; 940343; 259.
DR   IntAct; Q9UBX2; 285.
DR   TCDB; 1.I.1.1.3; the nuclear pore complex (npc) family.
DR   iPTMnet; Q9UBX2; -.
DR   PhosphoSitePlus; Q9UBX2; -.
DR   BioMuta; DUX4; -.
DR   DMDM; 74720085; -.
DR   MassIVE; Q9UBX2; -.
DR   PeptideAtlas; Q9UBX2; -.
DR   Antibodypedia; 73101; 314 antibodies from 22 providers.
DR   DNASU; 100288687; -.
DR   Ensembl; ENST00000565211.1; ENSP00000458065.1; ENSG00000260596.5. [Q9UBX2-1]
DR   Ensembl; ENST00000569241.5; ENSP00000456539.1; ENSG00000260596.5. [Q9UBX2-1]
DR   Ensembl; ENST00000570263.5; ENSP00000455112.1; ENSG00000260596.5. [Q9UBX2-2]
DR   Ensembl; ENST00000616166.1; ENSP00000483555.1; ENSG00000260596.5. [Q9UBX2-1]
DR   Ensembl; ENST00000637517.3; ENSP00000489958.1; ENSG00000283949.3. [Q9UBX2-1]
DR   Ensembl; ENST00000710433.1; ENSP00000518267.1; ENSG00000283949.3. [Q9UBX2-1]
DR   Ensembl; ENST00000710434.1; ENSP00000518268.1; ENSG00000283949.3. [Q9UBX2-2]
DR   GeneID; 100288687; -.
DR   KEGG; hsa:100288687; -.
DR   MANE-Select; ENST00000565211.1; ENSP00000458065.1; NM_001306068.3; NP_001292997.1.
DR   UCSC; uc031tgs.2; human. [Q9UBX2-1]
DR   UCSC; uc063bru.1; human.
DR   AGR; HGNC:50800; -.
DR   CTD; 100288687; -.
DR   DisGeNET; 100288687; -.
DR   GeneCards; DUX4; -.
DR   GeneReviews; DUX4; -.
DR   HGNC; HGNC:50800; DUX4.
DR   HPA; ENSG00000260596; Not detected.
DR   MalaCards; DUX4; -.
DR   MIM; 158900; phenotype.
DR   MIM; 606009; gene.
DR   neXtProt; NX_Q9UBX2; -.
DR   OpenTargets; ENSG00000260596; -.
DR   Orphanet; 269; Facioscapulohumeral dystrophy.
DR   VEuPathDB; HostDB:ENSG00000260596; -.
DR   eggNOG; KOG0849; Eukaryota.
DR   GeneTree; ENSGT00940000154537; -.
DR   HOGENOM; CLU_045070_0_0_1; -.
DR   InParanoid; Q9UBX2; -.
DR   OMA; QTCFERN; -.
DR   OrthoDB; 4740964at2759; -.
DR   PhylomeDB; Q9UBX2; -.
DR   PathwayCommons; Q9UBX2; -.
DR   Reactome; R-HSA-9819196; Zygotic genome activation (ZGA).
DR   SignaLink; Q9UBX2; -.
DR   SIGNOR; Q9UBX2; -.
DR   BioGRID-ORCS; 100288687; 13 hits in 113 CRISPR screens.
DR   ChiTaRS; DUX4; human.
DR   GenomeRNAi; 100288687; -.
DR   Pharos; Q9UBX2; Tbio.
DR   PRO; PR:Q9UBX2; -.
DR   Proteomes; UP000005640; Chromosome 4.
DR   RNAct; Q9UBX2; Protein.
DR   Bgee; ENSG00000260596; Expressed in primordial germ cell in gonad and 60 other cell types or tissues.
DR   ExpressionAtlas; Q9UBX2; baseline and differential.
DR   Genevisible; Q9UBX2; HS.
DR   GO; GO:0005829; C:cytosol; IDA:HPA.
DR   GO; GO:0005794; C:Golgi apparatus; IDA:HPA.
DR   GO; GO:0031965; C:nuclear membrane; IDA:UniProtKB.
DR   GO; GO:0005730; C:nucleolus; IDA:HPA.
DR   GO; GO:0005654; C:nucleoplasm; IDA:HPA.
DR   GO; GO:0005634; C:nucleus; IDA:UniProtKB.
DR   GO; GO:0001228; F:DNA-binding transcription activator activity, RNA polymerase II-specific; IDA:UniProtKB.
DR   GO; GO:0000981; F:DNA-binding transcription factor activity, RNA polymerase II-specific; IBA:GO_Central.
DR   GO; GO:0000978; F:RNA polymerase II cis-regulatory region sequence-specific DNA binding; IDA:NTNU_SB.
DR   GO; GO:0000977; F:RNA polymerase II transcription regulatory region sequence-specific DNA binding; IBA:GO_Central.
DR   GO; GO:1990837; F:sequence-specific double-stranded DNA binding; IDA:UniProtKB.
DR   GO; GO:0000976; F:transcription cis-regulatory region binding; IDA:UniProtKB.
DR   GO; GO:0006915; P:apoptotic process; IDA:UniProtKB.
DR   GO; GO:0008285; P:negative regulation of cell population proliferation; IMP:UniProtKB.
DR   GO; GO:0070317; P:negative regulation of G0 to G1 transition; IDA:UniProtKB.
DR   GO; GO:0045944; P:positive regulation of transcription by RNA polymerase II; IDA:UniProtKB.
DR   GO; GO:0006357; P:regulation of transcription by RNA polymerase II; IBA:GO_Central.
DR   CDD; cd00086; homeodomain; 2.
DR   Gene3D; 1.10.10.60; Homeodomain-like; 2.
DR   InterPro; IPR009057; Homeobox-like_sf.
DR   InterPro; IPR001356; Homeobox_dom.
DR   InterPro; IPR000047; HTH_motif.
DR   PANTHER; PTHR46123:SF3; DOUBLE HOMEOBOX PROTEIN 1-RELATED; 1.
DR   PANTHER; PTHR46123; MIX-TYPE HOMEOBOX GENE 1-RELATED; 1.
DR   Pfam; PF00046; Homeodomain; 2.
DR   PRINTS; PR00031; HTHREPRESSR.
DR   SMART; SM00389; HOX; 2.
DR   SUPFAM; SSF46689; Homeodomain-like; 2.
DR   PROSITE; PS50071; HOMEOBOX_2; 2.
PE   1: Evidence at protein level;
KW   3D-structure; Activator; Alternative splicing; Developmental protein;
KW   DNA-binding; Homeobox; Nucleus; Reference proteome; Repeat; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..424
FT                   /note="Double homeobox protein 4"
FT                   /id="PRO_0000252413"
FT   DNA_BIND        19..78
FT                   /note="Homeobox 1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00108,
FT                   ECO:0000269|PubMed:30540931"
FT   DNA_BIND        94..153
FT                   /note="Homeobox 2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00108,
FT                   ECO:0000269|PubMed:30540931"
FT   REGION          1..24
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          72..102
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          218..362
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          327..424
FT                   /note="Required for interaction with EP300 and CREBBP, and
FT                   for transcriptional activation of target genes"
FT                   /evidence="ECO:0000269|PubMed:26951377"
FT   REGION          388..414
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          405..424
FT                   /note="Important for transcriptional activation of target
FT                   genes"
FT                   /evidence="ECO:0000269|PubMed:29618456"
FT   COMPBIAS        72..96
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        341..355
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   VAR_SEQ         160
FT                   /note="A -> V (in isoform 2)"
FT                   /id="VSP_060075"
FT   VAR_SEQ         161..424
FT                   /note="Missing (in isoform 2)"
FT                   /id="VSP_060076"
FT   MUTAGEN         20
FT                   /note="R->A: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:30322619"
FT   MUTAGEN         23
FT                   /note="R->A: Mildly decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:30322619"
FT   MUTAGEN         26
FT                   /note="W->A: No effect on DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:30322619"
FT   MUTAGEN         69
FT                   /note="N->A: Mildly decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:30322619"
FT   MUTAGEN         95
FT                   /note="R->A: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:29572508"
FT   MUTAGEN         95
FT                   /note="R->A: No effect on DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:30322619"
FT   MUTAGEN         96
FT                   /note="R->A: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:29572508"
FT   MUTAGEN         97
FT                   /note="K->A: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:29572508"
FT   MUTAGEN         98
FT                   /note="R->A: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:29572508,
FT                   ECO:0000269|PubMed:30322619"
FT   MUTAGEN         143
FT                   /note="Q->E: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:29572508"
FT   MUTAGEN         144
FT                   /note="N->A: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:30322619"
FT   MUTAGEN         144
FT                   /note="N->E: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:29572508"
FT   MUTAGEN         145
FT                   /note="R->E: Altered sequence specificity, with increased
FT                   affinity for the DNA sequence 5'-TAATCTAATTA-3'."
FT                   /evidence="ECO:0000269|PubMed:30540931"
FT   MUTAGEN         147
FT                   /note="A->S: Altered sequence specificity, with increased
FT                   affinity for the DNA sequence 5'-TAATCTAATTA-3'."
FT                   /evidence="ECO:0000269|PubMed:30540931"
FT   MUTAGEN         148
FT                   /note="R->A: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:30322619"
FT   MUTAGEN         148
FT                   /note="R->E: Decreased DNA binding affinity."
FT                   /evidence="ECO:0000269|PubMed:29572508"
FT   MUTAGEN         159..371
FT                   /note="Missing: Decreased activity as transcriptional
FT                   activator."
FT                   /evidence="ECO:0000269|PubMed:26951377"
FT   MUTAGEN         159..326
FT                   /note="Missing: No effect on activity as transcriptional
FT                   activator."
FT                   /evidence="ECO:0000269|PubMed:26951377"
FT   MUTAGEN         160..342
FT                   /note="Missing: No effect on activity as transcriptional
FT                   activator."
FT                   /evidence="ECO:0000269|PubMed:29618456"
FT   MUTAGEN         327..424
FT                   /note="Missing: Loss of interaction with EP300 and CREBBP."
FT                   /evidence="ECO:0000269|PubMed:26951377"
FT   MUTAGEN         374..424
FT                   /note="Missing: Abolishes activity as transcriptional
FT                   activator."
FT                   /evidence="ECO:0000269|PubMed:29618456"
FT   MUTAGEN         405..424
FT                   /note="Missing: Reduced activity as transcriptional
FT                   activator."
FT                   /evidence="ECO:0000269|PubMed:29618456"
FT   HELIX           28..40
FT                   /evidence="ECO:0007829|PDB:5ZFZ"
FT   HELIX           46..56
FT                   /evidence="ECO:0007829|PDB:5ZFZ"
FT   HELIX           60..81
FT                   /evidence="ECO:0007829|PDB:5ZFZ"
FT   HELIX           103..113
FT                   /evidence="ECO:0007829|PDB:5Z2S"
FT   HELIX           121..131
FT                   /evidence="ECO:0007829|PDB:5Z2S"
FT   HELIX           135..148
FT                   /evidence="ECO:0007829|PDB:5Z2S"
SQ   SEQUENCE   424 AA;  44940 MW;  C51E9EE25C6661B8 CRC64;
     MALPTPSDST LPAEARGRGR RRRLVWTPSQ SEALRACFER NPYPGIATRE RLAQAIGIPE
     PRVQIWFQNE RSRQLRQHRR ESRPWPGRRG PPEGRRKRTA VTGSQTALLL RAFEKDRFPG
     IAAREELARE TGLPESRIQI WFQNRRARHP GQGGRAPAQA GGLCSAAPGG GHPAPSWVAF
     AHTGAWGTGL PAPHVPCAPG ALPQGAFVSQ AARAAPALQP SQAAPAEGIS QPAPARGDFA
     YAAPAPPDGA LSHPQAPRWP PHPGKSREDR DPQRDGLPGP CAVAQPGPAQ AGPQGQGVLA
     PPTSQGSPWW GWGRGPQVAG AAWEPQAGAA PPPQPAPPDA SASARQGQMQ GIPAPSQALQ
     EPAPWSALPC GLLLDELLAS PEFLQQAQPL LETEAPGELE ASEEAASLEA PLSEEEYRAL
     LEEL
//
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