GenomeNet

Database: UniProt
Entry: Q9NR30
LinkDB: Q9NR30
Original site: Q9NR30 
ID   DDX21_HUMAN             Reviewed;         783 AA.
AC   Q9NR30; B2RDL0; Q13436; Q5VX41; Q68D35;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   27-SEP-2005, sequence version 5.
DT   27-MAR-2024, entry version 233.
DE   RecName: Full=Nucleolar RNA helicase 2 {ECO:0000305};
DE            EC=3.6.4.13 {ECO:0000269|PubMed:28790157, ECO:0000269|PubMed:9461305};
DE   AltName: Full=DEAD box protein 21;
DE   AltName: Full=Gu-alpha;
DE   AltName: Full=Nucleolar RNA helicase Gu;
DE   AltName: Full=Nucleolar RNA helicase II;
DE   AltName: Full=RH II/Gu;
GN   Name=DDX21;
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 [MRNA] (ISOFORM 1), SUBCELLULAR LOCATION, AND VARIANT
RP   ILE-27.
RX   PubMed=8614622; DOI=10.1093/nar/24.7.1220;
RA   Valdez B.C., Henning D., Busch R.K., Woods K., Flores-Rozas H., Hurwitz J.,
RA   Perlaky L., Busch H.;
RT   "A nucleolar RNA helicase recognized by autoimmune antibodies from a
RT   patient with watermelon stomach disease.";
RL   Nucleic Acids Res. 24:1220-1224(1996).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND VARIANT ILE-27.
RC   TISSUE=Cervix adenocarcinoma;
RX   PubMed=11237763; DOI=10.1006/bbrc.2001.4446;
RA   Zhu K., Henning D., Valdez B.C., Busch H.;
RT   "Human RNA helicase II/Gu gene: genomic organization and promoter
RT   analysis.";
RL   Biochem. Biophys. Res. Commun. 281:1006-1011(2001).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2).
RC   TISSUE=Placenta;
RX   PubMed=14702039; DOI=10.1038/ng1285;
RA   Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R.,
RA   Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H.,
RA   Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S.,
RA   Yamamoto J., Saito K., Kawai Y., Isono Y., Nakamura Y., Nagahari K.,
RA   Murakami K., Yasuda T., Iwayanagi T., Wagatsuma M., Shiratori A., Sudo H.,
RA   Hosoiri T., Kaku Y., Kodaira H., Kondo H., Sugawara M., Takahashi M.,
RA   Kanda K., Yokoi T., Furuya T., Kikkawa E., Omura Y., Abe K., Kamihara K.,
RA   Katsuta N., Sato K., Tanikawa M., Yamazaki M., Ninomiya K., Ishibashi T.,
RA   Yamashita H., Murakawa K., Fujimori K., Tanai H., Kimata M., Watanabe M.,
RA   Hiraoka S., Chiba Y., Ishida S., Ono Y., Takiguchi S., Watanabe S.,
RA   Yosida M., Hotuta T., Kusano J., Kanehori K., Takahashi-Fujii A., Hara H.,
RA   Tanase T.-O., Nomura Y., Togiya S., Komai F., Hara R., Takeuchi K.,
RA   Arita M., Imose N., Musashino K., Yuuki H., Oshima A., Sasaki N.,
RA   Aotsuka S., Yoshikawa Y., Matsunawa H., Ichihara T., Shiohata N., Sano S.,
RA   Moriya S., Momiyama H., Satoh N., Takami S., Terashima Y., Suzuki O.,
RA   Nakagawa S., Senoh A., Mizoguchi H., Goto Y., Shimizu F., Wakebe H.,
RA   Hishigaki H., Watanabe T., Sugiyama A., Takemoto M., Kawakami B.,
RA   Yamazaki M., Watanabe K., Kumagai A., Itakura S., Fukuzumi Y., Fujimori Y.,
RA   Komiyama M., Tashiro H., Tanigami A., Fujiwara T., Ono T., Yamada K.,
RA   Fujii Y., Ozaki K., Hirao M., Ohmori Y., Kawabata A., Hikiji T.,
RA   Kobatake N., Inagaki H., Ikema Y., Okamoto S., Okitani R., Kawakami T.,
RA   Noguchi S., Itoh T., Shigeta K., Senba T., Matsumura K., Nakajima Y.,
RA   Mizuno T., Morinaga M., Sasaki M., Togashi T., Oyama M., Hata H.,
RA   Watanabe M., Komatsu T., Mizushima-Sugano J., Satoh T., Shirai Y.,
RA   Takahashi Y., Nakagawa K., Okumura K., Nagase T., Nomura N., Kikuchi H.,
RA   Masuho Y., Yamashita R., Nakai K., Yada T., Nakamura Y., Ohara O.,
RA   Isogai T., Sugano S.;
RT   "Complete sequencing and characterization of 21,243 full-length human
RT   cDNAs.";
RL   Nat. Genet. 36:40-45(2004).
RN   [4]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2).
RC   TISSUE=Uterine endothelium;
RX   PubMed=17974005; DOI=10.1186/1471-2164-8-399;
RA   Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U.,
RA   Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D.,
RA   Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A.,
RA   Wiemann S., Schupp I.;
RT   "The full-ORF clone resource of the German cDNA consortium.";
RL   BMC Genomics 8:399-399(2007).
RN   [5]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=15164054; DOI=10.1038/nature02462;
RA   Deloukas P., Earthrowl M.E., Grafham D.V., Rubenfield M., French L.,
RA   Steward C.A., Sims S.K., Jones M.C., Searle S., Scott C., Howe K.,
RA   Hunt S.E., Andrews T.D., Gilbert J.G.R., Swarbreck D., Ashurst J.L.,
RA   Taylor A., Battles J., Bird C.P., Ainscough R., Almeida J.P.,
RA   Ashwell R.I.S., Ambrose K.D., Babbage A.K., Bagguley C.L., Bailey J.,
RA   Banerjee R., Bates K., Beasley H., Bray-Allen S., Brown A.J., Brown J.Y.,
RA   Burford D.C., Burrill W., Burton J., Cahill P., Camire D., Carter N.P.,
RA   Chapman J.C., Clark S.Y., Clarke G., Clee C.M., Clegg S., Corby N.,
RA   Coulson A., Dhami P., Dutta I., Dunn M., Faulkner L., Frankish A.,
RA   Frankland J.A., Garner P., Garnett J., Gribble S., Griffiths C.,
RA   Grocock R., Gustafson E., Hammond S., Harley J.L., Hart E., Heath P.D.,
RA   Ho T.P., Hopkins B., Horne J., Howden P.J., Huckle E., Hynds C.,
RA   Johnson C., Johnson D., Kana A., Kay M., Kimberley A.M., Kershaw J.K.,
RA   Kokkinaki M., Laird G.K., Lawlor S., Lee H.M., Leongamornlert D.A.,
RA   Laird G., Lloyd C., Lloyd D.M., Loveland J., Lovell J., McLaren S.,
RA   McLay K.E., McMurray A., Mashreghi-Mohammadi M., Matthews L., Milne S.,
RA   Nickerson T., Nguyen M., Overton-Larty E., Palmer S.A., Pearce A.V.,
RA   Peck A.I., Pelan S., Phillimore B., Porter K., Rice C.M., Rogosin A.,
RA   Ross M.T., Sarafidou T., Sehra H.K., Shownkeen R., Skuce C.D., Smith M.,
RA   Standring L., Sycamore N., Tester J., Thorpe A., Torcasso W., Tracey A.,
RA   Tromans A., Tsolas J., Wall M., Walsh J., Wang H., Weinstock K., West A.P.,
RA   Willey D.L., Whitehead S.L., Wilming L., Wray P.W., Young L., Chen Y.,
RA   Lovering R.C., Moschonas N.K., Siebert R., Fechtel K., Bentley D.,
RA   Durbin R.M., Hubbard T., Doucette-Stamm L., Beck S., Smith D.R., Rogers J.;
RT   "The DNA sequence and comparative analysis of human chromosome 10.";
RL   Nature 429:375-381(2004).
RN   [6]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M.,
RA   Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J.,
RA   Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S.,
RA   Turner R., Yooseph S., Lu F., Nusskern D.R., Shue B.C., Zheng X.H.,
RA   Zhong F., Delcher A.L., Huson D.H., Kravitz S.A., Mouchard L., Reinert K.,
RA   Remington K.A., Clark A.G., Waterman M.S., Eichler E.E., Adams M.D.,
RA   Hunkapiller M.W., Myers E.W., Venter J.C.;
RL   Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases.
RN   [7]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1).
RC   TISSUE=Colon, and Muscle;
RX   PubMed=15489334; DOI=10.1101/gr.2596504;
RG   The MGC Project Team;
RT   "The status, quality, and expansion of the NIH full-length cDNA project:
RT   the Mammalian Gene Collection (MGC).";
RL   Genome Res. 14:2121-2127(2004).
RN   [8]
RP   PROTEIN SEQUENCE OF 7-18; 117-131; 185-199; 205-215; 237-247; 258-270;
RP   287-304; 307-318; 364-387; 392-402; 407-417; 424-432; 450-474; 485-499;
RP   545-555; 606-627; 659-668; 679-696 AND 703-718, PHOSPHORYLATION AT SER-121,
RP   AND IDENTIFICATION BY MASS SPECTROMETRY.
RC   TISSUE=Cervix carcinoma;
RA   Bienvenut W.V., Waridel P., Quadroni M.;
RL   Submitted (MAR-2009) to UniProtKB.
RN   [9]
RP   PROTEIN SEQUENCE OF 185-199; 260-270 AND 563-573, FUNCTION, SUBCELLULAR
RP   LOCATION, AND INTERACTION WITH JUN.
RX   PubMed=11823437; DOI=10.1093/emboj/21.3.451;
RA   Westermarck J., Weiss C., Saffrich R., Kast J., Musti A.M., Wessely M.,
RA   Ansorge W., Seraphin B., Wilm M., Valdez B.C., Bohmann D.;
RT   "The DEXD/H-box RNA helicase RHII/Gu is a co-factor for c-Jun-activated
RT   transcription.";
RL   EMBO J. 21:451-460(2002).
RN   [10]
RP   FUNCTION, CATALYTIC ACTIVITY, AND MUTAGENESIS OF 339-ASP-GLU-340 AND
RP   375-SER-ALA-376.
RX   PubMed=9461305; DOI=10.1111/j.1432-1033.1997.00800.x;
RA   Valdez B.C., Henning D., Perumal K., Busch H.;
RT   "RNA-unwinding and RNA-folding activities of RNA helicase II/Gu--two
RT   activities in separate domains of the same protein.";
RL   Eur. J. Biochem. 250:800-807(1997).
RN   [11]
RP   FUNCTION.
RX   PubMed=14559904; DOI=10.1074/jbc.m310846200;
RA   Henning D., So R.B., Jin R., Lau L.F., Valdez B.C.;
RT   "Silencing of RNA helicase II/Gualpha inhibits mammalian ribosomal RNA
RT   production.";
RL   J. Biol. Chem. 278:52307-52314(2003).
RN   [12]
RP   IDENTIFICATION BY MASS SPECTROMETRY.
RC   TISSUE=Lymphoblast;
RX   PubMed=14654843; DOI=10.1038/nature02166;
RA   Andersen J.S., Wilkinson C.J., Mayor T., Mortensen P., Nigg E.A., Mann M.;
RT   "Proteomic characterization of the human centrosome by protein correlation
RT   profiling.";
RL   Nature 426:570-574(2003).
RN   [13]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-71; SER-89 AND SER-121, AND
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   TISSUE=Cervix carcinoma;
RX   PubMed=17081983; DOI=10.1016/j.cell.2006.09.026;
RA   Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M.;
RT   "Global, in vivo, and site-specific phosphorylation dynamics in signaling
RT   networks.";
RL   Cell 127:635-648(2006).
RN   [14]
RP   IDENTIFICATION IN THE B-WICH COMPLEX.
RX   PubMed=16603771; DOI=10.1074/jbc.m600233200;
RA   Cavellan E., Asp P., Percipalle P., Oestlund Farrants A.-K.;
RT   "The WSTF-SNF2h chromatin remodeling complex interacts with several nuclear
RT   proteins in transcription.";
RL   J. Biol. Chem. 281:16264-16271(2006).
RN   [15]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-89, AND IDENTIFICATION BY
RP   MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   TISSUE=Cervix carcinoma;
RX   PubMed=17924679; DOI=10.1021/pr070152u;
RA   Yu L.R., Zhu Z., Chan K.C., Issaq H.J., Dimitrov D.S., Veenstra T.D.;
RT   "Improved titanium dioxide enrichment of phosphopeptides from HeLa cells
RT   and high confident phosphopeptide identification by cross-validation of
RT   MS/MS and MS/MS/MS spectra.";
RL   J. Proteome Res. 6:4150-4162(2007).
RN   [16]
RP   FUNCTION, AND SUBCELLULAR LOCATION.
RX   PubMed=18180292; DOI=10.1074/jbc.m709613200;
RA   Holmstrom T.H., Mialon A., Kallio M., Nymalm Y., Mannermaa L., Holm T.,
RA   Johansson H., Black E., Gillespie D., Salminen T.A., Langel U.,
RA   Valdez B.C., Westermarck J.;
RT   "c-Jun supports ribosomal RNA processing and nucleolar localization of RNA
RT   helicase DDX21.";
RL   J. Biol. Chem. 283:7046-7053(2008).
RN   [17]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-13; SER-71 AND SER-89, AND
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   TISSUE=Cervix carcinoma;
RX   PubMed=18669648; DOI=10.1073/pnas.0805139105;
RA   Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E.,
RA   Elledge S.J., Gygi S.P.;
RT   "A quantitative atlas of mitotic phosphorylation.";
RL   Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008).
RN   [18]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=19413330; DOI=10.1021/ac9004309;
RA   Gauci S., Helbig A.O., Slijper M., Krijgsveld J., Heck A.J., Mohammed S.;
RT   "Lys-N and trypsin cover complementary parts of the phosphoproteome in a
RT   refined SCX-based approach.";
RL   Anal. Chem. 81:4493-4501(2009).
RN   [19]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-121, AND IDENTIFICATION BY
RP   MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=19369195; DOI=10.1074/mcp.m800588-mcp200;
RA   Oppermann F.S., Gnad F., Olsen J.V., Hornberger R., Greff Z., Keri G.,
RA   Mann M., Daub H.;
RT   "Large-scale proteomics analysis of the human kinome.";
RL   Mol. Cell. Proteomics 8:1751-1764(2009).
RN   [20]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-13 AND SER-121, AND
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   TISSUE=Leukemic T-cell;
RX   PubMed=19690332; DOI=10.1126/scisignal.2000007;
RA   Mayya V., Lundgren D.H., Hwang S.-I., Rezaul K., Wu L., Eng J.K.,
RA   Rodionov V., Han D.K.;
RT   "Quantitative phosphoproteomic analysis of T cell receptor signaling
RT   reveals system-wide modulation of protein-protein interactions.";
RL   Sci. Signal. 2:RA46-RA46(2009).
RN   [21]
RP   ACETYLATION [LARGE SCALE ANALYSIS] AT LYS-779, AND IDENTIFICATION BY MASS
RP   SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=19608861; DOI=10.1126/science.1175371;
RA   Choudhary C., Kumar C., Gnad F., Nielsen M.L., Rehman M., Walther T.C.,
RA   Olsen J.V., Mann M.;
RT   "Lysine acetylation targets protein complexes and co-regulates major
RT   cellular functions.";
RL   Science 325:834-840(2009).
RN   [22]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-13; SER-71; SER-89; SER-121;
RP   THR-296 AND SER-567, AND IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE
RP   ANALYSIS].
RC   TISSUE=Cervix carcinoma;
RX   PubMed=20068231; DOI=10.1126/scisignal.2000475;
RA   Olsen J.V., Vermeulen M., Santamaria A., Kumar C., Miller M.L.,
RA   Jensen L.J., Gnad F., Cox J., Jensen T.S., Nigg E.A., Brunak S., Mann M.;
RT   "Quantitative phosphoproteomics reveals widespread full phosphorylation
RT   site occupancy during mitosis.";
RL   Sci. Signal. 3:RA3-RA3(2010).
RN   [23]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=21269460; DOI=10.1186/1752-0509-5-17;
RA   Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T.,
RA   Bennett K.L., Superti-Furga G., Colinge J.;
RT   "Initial characterization of the human central proteome.";
RL   BMC Syst. Biol. 5:17-17(2011).
RN   [24]
RP   INTERACTION WITH C1QBP.
RX   PubMed=21536856; DOI=10.1074/mcp.m110.006148;
RA   Yoshikawa H., Komatsu W., Hayano T., Miura Y., Homma K., Izumikawa K.,
RA   Ishikawa H., Miyazawa N., Tachikawa H., Yamauchi Y., Isobe T.,
RA   Takahashi N.;
RT   "Splicing factor 2-associated protein p32 participates in ribosome
RT   biogenesis by regulating the binding of Nop52 and fibrillarin to
RT   preribosome particles.";
RL   Mol. Cell. Proteomics 10:0-0(2011).
RN   [25]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-13; SER-71; SER-89 AND
RP   SER-121, AND IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=21406692; DOI=10.1126/scisignal.2001570;
RA   Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T.,
RA   Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B.;
RT   "System-wide temporal characterization of the proteome and phosphoproteome
RT   of human embryonic stem cell differentiation.";
RL   Sci. Signal. 4:RS3-RS3(2011).
RN   [26]
RP   ACETYLATION [LARGE SCALE ANALYSIS] AT MET-1 (ISOFORM 2), AND IDENTIFICATION
RP   BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=22814378; DOI=10.1073/pnas.1210303109;
RA   Van Damme P., Lasa M., Polevoda B., Gazquez C., Elosegui-Artola A.,
RA   Kim D.S., De Juan-Pardo E., Demeyer K., Hole K., Larrea E., Timmerman E.,
RA   Prieto J., Arnesen T., Sherman F., Gevaert K., Aldabe R.;
RT   "N-terminal acetylome analyses and functional insights of the N-terminal
RT   acetyltransferase NatB.";
RL   Proc. Natl. Acad. Sci. U.S.A. 109:12449-12454(2012).
RN   [27]
RP   SUBCELLULAR LOCATION, AND INTERACTION WITH WDR46.
RX   PubMed=23848194; DOI=10.1111/gtc.12077;
RA   Hirai Y., Louvet E., Oda T., Kumeta M., Watanabe Y., Horigome T.,
RA   Takeyasu K.;
RT   "Nucleolar scaffold protein, WDR46, determines the granular compartmental
RT   localization of nucleolin and DDX21.";
RL   Genes Cells 18:780-797(2013).
RN   [28]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-7; SER-13; SER-71; SER-89;
RP   SER-121; THR-296 AND SER-567, AND IDENTIFICATION BY MASS SPECTROMETRY
RP   [LARGE SCALE ANALYSIS].
RC   TISSUE=Cervix carcinoma, and Erythroleukemia;
RX   PubMed=23186163; DOI=10.1021/pr300630k;
RA   Zhou H., Di Palma S., Preisinger C., Peng M., Polat A.N., Heck A.J.,
RA   Mohammed S.;
RT   "Toward a comprehensive characterization of a human cancer cell
RT   phosphoproteome.";
RL   J. Proteome Res. 12:260-271(2013).
RN   [29]
RP   INTERACTION WITH MCM3AP.
RX   PubMed=23652018; DOI=10.1038/ncomms2823;
RA   Singh S.K., Maeda K., Eid M.M., Almofty S.A., Ono M., Pham P.,
RA   Goodman M.F., Sakaguchi N.;
RT   "GANP regulates recruitment of AID to immunoglobulin variable regions by
RT   modulating transcription and nucleosome occupancy.";
RL   Nat. Commun. 4:1830-1830(2013).
RN   [30]
RP   FUNCTION, AND SUBCELLULAR LOCATION.
RX   PubMed=25260534; DOI=10.1186/s13058-014-0449-z;
RA   Zhang Y., Baysac K.C., Yee L.F., Saporita A.J., Weber J.D.;
RT   "Elevated DDX21 regulates c-Jun activity and rRNA processing in human
RT   breast cancers.";
RL   Breast Cancer Res. 16:449-449(2014).
RN   [31]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   TISSUE=Liver;
RX   PubMed=24275569; DOI=10.1016/j.jprot.2013.11.014;
RA   Bian Y., Song C., Cheng K., Dong M., Wang F., Huang J., Sun D., Wang L.,
RA   Ye M., Zou H.;
RT   "An enzyme assisted RP-RPLC approach for in-depth analysis of human liver
RT   phosphoproteome.";
RL   J. Proteomics 96:253-262(2014).
RN   [32]
RP   SUMOYLATION [LARGE SCALE ANALYSIS] AT LYS-116, AND IDENTIFICATION BY MASS
RP   SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=25114211; DOI=10.1073/pnas.1413825111;
RA   Impens F., Radoshevich L., Cossart P., Ribet D.;
RT   "Mapping of SUMO sites and analysis of SUMOylation changes induced by
RT   external stimuli.";
RL   Proc. Natl. Acad. Sci. U.S.A. 111:12432-12437(2014).
RN   [33]
RP   FUNCTION, RNA-BINDING, SUBCELLULAR LOCATION, AND MUTAGENESIS OF
RP   339-ASP-GLU-340 AND 375-SER-ALA-376.
RX   PubMed=25470060; DOI=10.1038/nature13923;
RA   Calo E., Flynn R.A., Martin L., Spitale R.C., Chang H.Y., Wysocka J.;
RT   "RNA helicase DDX21 coordinates transcription and ribosomal RNA
RT   processing.";
RL   Nature 518:249-253(2015).
RN   [34]
RP   FUNCTION, AND RNA-BINDING.
RX   PubMed=25477391; DOI=10.1093/nar/gku1291;
RA   Sloan K.E., Leisegang M.S., Doebele C., Ramirez A.S., Simm S.,
RA   Safferthal C., Kretschmer J., Schorge T., Markoutsa S., Haag S., Karas M.,
RA   Ebersberger I., Schleiff E., Watkins N.J., Bohnsack M.T.;
RT   "The association of late-acting snoRNPs with human pre-ribosomal complexes
RT   requires the RNA helicase DDX21.";
RL   Nucleic Acids Res. 43:553-564(2015).
RN   [35]
RP   FUNCTION, CATALYTIC ACTIVITY, ACETYLATION AT LYS-18; LYS-137 AND LYS-600,
RP   AND MUTAGENESIS OF LYS-18; LYS-137; 339-ASP-GLU-340; 375-SER-ALA-376 AND
RP   LYS-600.
RX   PubMed=28790157; DOI=10.1101/gad.300624.117;
RA   Song C., Hotz-Wagenblatt A., Voit R., Grummt I.;
RT   "SIRT7 and the DEAD-box helicase DDX21 cooperate to resolve genomic R loops
RT   and safeguard genome stability.";
RL   Genes Dev. 31:1370-1381(2017).
RN   [36]
RP   FUNCTION, AND MIRNA-BINDING.
RX   PubMed=28431233; DOI=10.1016/j.molcel.2017.03.014;
RA   Treiber T., Treiber N., Plessmann U., Harlander S., Daiss J.L., Eichner N.,
RA   Lehmann G., Schall K., Urlaub H., Meister G.;
RT   "A Compendium of RNA-Binding Proteins that Regulate MicroRNA Biogenesis.";
RL   Mol. Cell 66:270-284(2017).
RN   [37]
RP   SUMOYLATION [LARGE SCALE ANALYSIS] AT LYS-116, AND IDENTIFICATION BY MASS
RP   SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=28112733; DOI=10.1038/nsmb.3366;
RA   Hendriks I.A., Lyon D., Young C., Jensen L.J., Vertegaal A.C.,
RA   Nielsen M.L.;
RT   "Site-specific mapping of the human SUMO proteome reveals co-modification
RT   with phosphorylation.";
RL   Nat. Struct. Mol. Biol. 24:325-336(2017).
RN   [38]
RP   INTERACTION WITH KPNA3.
RX   PubMed=34564892; DOI=10.1002/ana.26228;
RA   Schob C., Hempel M., Safka Brozkova D., Jiang H., Kim S.Y., Batzir N.A.,
RA   Orenstein N., Bierhals T., Johannsen J., Uhrova Meszarosova A., Chae J.H.,
RA   Seeman P., Woidy M., Fang F., Kubisch C., Kindler S., Denecke J.;
RT   "Dominant KPNA3 Mutations Cause Infantile-Onset Hereditary Spastic
RT   Paraplegia.";
RL   Ann. Neurol. 90:738-750(2021).
RN   [39]
RP   STRUCTURE BY NMR OF 617-710.
RA   Dutta S.K., Serrano P., Geralt M., Wuthrich K.;
RT   "NMR structure of the GUCT domain from human DEAD box polypeptide 21
RT   (DDX21).";
RL   Submitted (JAN-2013) to the PDB data bank.
CC   -!- FUNCTION: RNA helicase that acts as a sensor of the transcriptional
CC       status of both RNA polymerase (Pol) I and II: promotes ribosomal RNA
CC       (rRNA) processing and transcription from polymerase II (Pol II)
CC       (PubMed:25470060, PubMed:28790157). Binds various RNAs, such as rRNAs,
CC       snoRNAs, 7SK and, at lower extent, mRNAs (PubMed:25470060). In the
CC       nucleolus, localizes to rDNA locus, where it directly binds rRNAs and
CC       snoRNAs, and promotes rRNA transcription, processing and modification.
CC       Required for rRNA 2'-O-methylation, possibly by promoting the
CC       recruitment of late-acting snoRNAs SNORD56 and SNORD58 with pre-
CC       ribosomal complexes (PubMed:25470060, PubMed:25477391). In the
CC       nucleoplasm, binds 7SK RNA and is recruited to the promoters of Pol II-
CC       transcribed genes: acts by facilitating the release of P-TEFb from
CC       inhibitory 7SK snRNP in a manner that is dependent on its helicase
CC       activity, thereby promoting transcription of its target genes
CC       (PubMed:25470060). Functions as a cofactor for JUN-activated
CC       transcription: required for phosphorylation of JUN at 'Ser-77'
CC       (PubMed:11823437, PubMed:25260534). Can unwind double-stranded RNA
CC       (helicase) and can fold or introduce a secondary structure to a single-
CC       stranded RNA (foldase) (PubMed:9461305). Together with SIRT7, required
CC       to prevent R-loop-associated DNA damage and transcription-associated
CC       genomic instability: deacetylation by SIRT7 activates the helicase
CC       activity, thereby overcoming R-loop-mediated stalling of RNA
CC       polymerases (PubMed:28790157). Involved in rRNA processing
CC       (PubMed:14559904, PubMed:18180292). May bind to specific miRNA hairpins
CC       (PubMed:28431233). Component of a multi-helicase-TICAM1 complex that
CC       acts as a cytoplasmic sensor of viral double-stranded RNA (dsRNA) and
CC       plays a role in the activation of a cascade of antiviral responses
CC       including the induction of pro-inflammatory cytokines via the adapter
CC       molecule TICAM1 (By similarity). {ECO:0000250|UniProtKB:Q9JIK5,
CC       ECO:0000269|PubMed:11823437, ECO:0000269|PubMed:14559904,
CC       ECO:0000269|PubMed:18180292, ECO:0000269|PubMed:25260534,
CC       ECO:0000269|PubMed:25470060, ECO:0000269|PubMed:25477391,
CC       ECO:0000269|PubMed:28431233, ECO:0000269|PubMed:28790157,
CC       ECO:0000269|PubMed:9461305}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O = ADP + H(+) + phosphate; Xref=Rhea:RHEA:13065,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=3.6.4.13;
CC         Evidence={ECO:0000269|PubMed:28790157, ECO:0000269|PubMed:9461305};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:13066;
CC         Evidence={ECO:0000269|PubMed:28790157, ECO:0000269|PubMed:9461305};
CC   -!- ACTIVITY REGULATION: Acetylation inhibits the helicase activity.
CC       {ECO:0000269|PubMed:28790157}.
CC   -!- SUBUNIT: Homodimer; homodimerizes via its N-terminus. Found in a multi-
CC       helicase-TICAM1 complex at least composed of DHX36, DDX1, DDX21 and
CC       TICAM1; this complex exists in resting cells with or without poly(I:C)
CC       RNA ligand stimulation. Interacts (via C-terminus) with TICAM1 (via TIR
CC       domain). Interacts with DHX36 (via C-terminus); this interaction serves
CC       as bridges to TICAM1. Interacts (via C-terminus) with DDX1 (via
CC       B30.2/SPRY domain); this interaction serves as bridges to TICAM1.
CC       Component of the B-WICH complex, at least composed of SMARCA5/SNF2H,
CC       BAZ1B/WSTF, SF3B1, DEK, MYO1C, ERCC6, MYBBP1A and DDX21. Interacts with
CC       C1QBP. Interacts with JUN. Interacts with WDR46 (By similarity).
CC       Component of the B-WICH complex, at least composed of SMARCA5/SNF2H,
CC       BAZ1B/WSTF, SF3B1, DEK, MYO1C, ERCC6, MYBBP1A and DDX21. Interacts with
CC       C1QBP. Interacts with JUN (PubMed:11823437, PubMed:18180292). Interacts
CC       with WDR46 (PubMed:23848194). Interacts with MCM3AP isoform GANP
CC       (PubMed:23652018). Interacts with WDR43 (By similarity). Interacts with
CC       KPNA3 (PubMed:34564892). {ECO:0000250|UniProtKB:Q9JIK5,
CC       ECO:0000269|PubMed:11823437, ECO:0000269|PubMed:16603771,
CC       ECO:0000269|PubMed:18180292, ECO:0000269|PubMed:21536856,
CC       ECO:0000269|PubMed:23652018, ECO:0000269|PubMed:23848194,
CC       ECO:0000269|PubMed:34564892}.
CC   -!- INTERACTION:
CC       Q9NR30; Q8N187: CARF; NbExp=3; IntAct=EBI-357942, EBI-745541;
CC       Q9NR30; P07910: HNRNPC; NbExp=3; IntAct=EBI-357942, EBI-357966;
CC       Q9NR30; P42858: HTT; NbExp=3; IntAct=EBI-357942, EBI-466029;
CC       Q9NR30; O00505: KPNA3; NbExp=3; IntAct=EBI-357942, EBI-358297;
CC       Q9NR30; Q99732: LITAF; NbExp=3; IntAct=EBI-357942, EBI-725647;
CC       Q9NR30; P10636: MAPT; NbExp=3; IntAct=EBI-357942, EBI-366182;
CC       Q9NR30; Q15554: TERF2; NbExp=2; IntAct=EBI-357942, EBI-706637;
CC       Q9NR30; P0DTC9: N; Xeno; NbExp=12; IntAct=EBI-357942, EBI-25475856;
CC   -!- SUBCELLULAR LOCATION: Nucleus, nucleolus {ECO:0000269|PubMed:11823437,
CC       ECO:0000269|PubMed:18180292, ECO:0000269|PubMed:23848194,
CC       ECO:0000269|PubMed:25260534, ECO:0000269|PubMed:25470060,
CC       ECO:0000269|PubMed:28790157, ECO:0000269|PubMed:8614622}. Nucleus,
CC       nucleoplasm {ECO:0000269|PubMed:11823437, ECO:0000269|PubMed:18180292,
CC       ECO:0000269|PubMed:25260534, ECO:0000269|PubMed:25470060,
CC       ECO:0000269|PubMed:28790157}. Cytoplasm, cytosol
CC       {ECO:0000250|UniProtKB:Q9JIK5}. Mitochondrion
CC       {ECO:0000250|UniProtKB:Q9JIK5}. Note=Present both in nucleolus and
CC       nucleoplasm. Interaction with JUN promotes translocation from the
CC       nucleolus to the nucleoplasm (PubMed:11823437, PubMed:18180292).
CC       Interaction with WDR46 is required for localization to the nucleolus
CC       (PubMed:23848194). Colocalizes in the cytosol with DDX1, DHX36 and
CC       TICAM1. The multi-helicase-TICAM1 complex may translocate to the
CC       mitochondria upon poly(I:C) RNA ligand stimulation (By similarity).
CC       {ECO:0000250|UniProtKB:Q9JIK5, ECO:0000269|PubMed:11823437,
CC       ECO:0000269|PubMed:18180292, ECO:0000269|PubMed:23848194}.
CC   -!- ALTERNATIVE PRODUCTS:
CC       Event=Alternative splicing; Named isoforms=2;
CC       Name=1;
CC         IsoId=Q9NR30-1; Sequence=Displayed;
CC       Name=2;
CC         IsoId=Q9NR30-2; Sequence=VSP_015716;
CC   -!- DOMAIN: The helicase and foldase activities reside in two separate
CC       domains, the helicase in the N-terminus and the foldase in the C-
CC       terminus. {ECO:0000269|PubMed:9461305}.
CC   -!- DOMAIN: The 3 X 5 AA repeats seem to be critical for the RNA folding
CC       activity. {ECO:0000250}.
CC   -!- PTM: Acetylation by CREBBP/CBP inhibits the helicase activity
CC       (PubMed:28790157). Deacetylation by SIRT7 promotes the helicase
CC       activity and overcomes R-loop-mediated stalling of RNA polymerases
CC       (PubMed:28790157). {ECO:0000269|PubMed:28790157}.
CC   -!- MISCELLANEOUS: Autoantibodies against DDX21 are found in patients with
CC       watermelon stomach disease, which is characterized by prominent stripes
CC       of ectatic vascular tissue in the stomach similar to stripes on a
CC       watermelon. {ECO:0000269|PubMed:8614622}.
CC   -!- SIMILARITY: Belongs to the DEAD box helicase family. DDX21/DDX50
CC       subfamily. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAB02546.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; U41387; AAB02546.1; ALT_INIT; mRNA.
DR   EMBL; AF261903; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; AF261917; AAF78930.2; -; Genomic_DNA.
DR   EMBL; AF261904; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261905; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261906; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261907; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261908; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261909; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261910; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261911; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261912; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261913; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261914; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261915; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AF261916; AAF78930.2; JOINED; Genomic_DNA.
DR   EMBL; AK315585; BAG37957.1; -; mRNA.
DR   EMBL; CR749598; CAH18395.1; -; mRNA.
DR   EMBL; AL359844; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; CH471083; EAW54307.1; -; Genomic_DNA.
DR   EMBL; BC008071; AAH08071.2; -; mRNA.
DR   CCDS; CCDS31211.1; -. [Q9NR30-1]
DR   CCDS; CCDS73144.1; -. [Q9NR30-2]
DR   PIR; PC6010; PC6010.
DR   RefSeq; NP_001243839.1; NM_001256910.1. [Q9NR30-2]
DR   RefSeq; NP_004719.2; NM_004728.3. [Q9NR30-1]
DR   PDB; 2M3D; NMR; -; A=617-710.
DR   PDB; 6L5L; X-ray; 3.10 A; A=188-563.
DR   PDB; 6L5M; X-ray; 2.70 A; A/B/C/D/E=188-563.
DR   PDB; 6L5N; X-ray; 2.24 A; A/B=188-563.
DR   PDB; 6L5O; X-ray; 1.80 A; A=188-563.
DR   PDBsum; 2M3D; -.
DR   PDBsum; 6L5L; -.
DR   PDBsum; 6L5M; -.
DR   PDBsum; 6L5N; -.
DR   PDBsum; 6L5O; -.
DR   AlphaFoldDB; Q9NR30; -.
DR   BMRB; Q9NR30; -.
DR   SASBDB; Q9NR30; -.
DR   SMR; Q9NR30; -.
DR   BioGRID; 114625; 734.
DR   ComplexPortal; CPX-1099; B-WICH chromatin remodelling complex.
DR   CORUM; Q9NR30; -.
DR   DIP; DIP-32941N; -.
DR   IntAct; Q9NR30; 147.
DR   MINT; Q9NR30; -.
DR   STRING; 9606.ENSP00000346120; -.
DR   ChEMBL; CHEMBL4296016; -.
DR   GlyCosmos; Q9NR30; 2 sites, 1 glycan.
DR   GlyGen; Q9NR30; 4 sites, 1 O-linked glycan (4 sites).
DR   iPTMnet; Q9NR30; -.
DR   MetOSite; Q9NR30; -.
DR   PhosphoSitePlus; Q9NR30; -.
DR   SwissPalm; Q9NR30; -.
DR   BioMuta; DDX21; -.
DR   DMDM; 76803555; -.
DR   SWISS-2DPAGE; Q9NR30; -.
DR   CPTAC; CPTAC-494; -.
DR   CPTAC; CPTAC-495; -.
DR   EPD; Q9NR30; -.
DR   jPOST; Q9NR30; -.
DR   MassIVE; Q9NR30; -.
DR   MaxQB; Q9NR30; -.
DR   PaxDb; 9606-ENSP00000346120; -.
DR   PeptideAtlas; Q9NR30; -.
DR   ProteomicsDB; 82265; -. [Q9NR30-1]
DR   ProteomicsDB; 82266; -. [Q9NR30-2]
DR   Pumba; Q9NR30; -.
DR   TopDownProteomics; Q9NR30-1; -. [Q9NR30-1]
DR   Antibodypedia; 14684; 318 antibodies from 26 providers.
DR   DNASU; 9188; -.
DR   Ensembl; ENST00000354185.9; ENSP00000346120.4; ENSG00000165732.14. [Q9NR30-1]
DR   Ensembl; ENST00000620315.2; ENSP00000480334.1; ENSG00000165732.14. [Q9NR30-2]
DR   Ensembl; ENST00000690316.1; ENSP00000510035.1; ENSG00000165732.14. [Q9NR30-2]
DR   GeneID; 9188; -.
DR   KEGG; hsa:9188; -.
DR   MANE-Select; ENST00000354185.9; ENSP00000346120.4; NM_004728.4; NP_004719.2.
DR   UCSC; uc001jov.3; human. [Q9NR30-1]
DR   AGR; HGNC:2744; -.
DR   CTD; 9188; -.
DR   DisGeNET; 9188; -.
DR   GeneCards; DDX21; -.
DR   HGNC; HGNC:2744; DDX21.
DR   HPA; ENSG00000165732; Low tissue specificity.
DR   MIM; 606357; gene.
DR   neXtProt; NX_Q9NR30; -.
DR   OpenTargets; ENSG00000165732; -.
DR   PharmGKB; PA27210; -.
DR   VEuPathDB; HostDB:ENSG00000165732; -.
DR   eggNOG; KOG0331; Eukaryota.
DR   GeneTree; ENSGT00940000155043; -.
DR   HOGENOM; CLU_003041_20_0_1; -.
DR   InParanoid; Q9NR30; -.
DR   OMA; YSGFHGR; -.
DR   OrthoDB; 1188at2759; -.
DR   PhylomeDB; Q9NR30; -.
DR   TreeFam; TF328622; -.
DR   BRENDA; 3.6.4.13; 2681.
DR   PathwayCommons; Q9NR30; -.
DR   Reactome; R-HSA-5250924; B-WICH complex positively regulates rRNA expression.
DR   Reactome; R-HSA-6791226; Major pathway of rRNA processing in the nucleolus and cytosol.
DR   SignaLink; Q9NR30; -.
DR   SIGNOR; Q9NR30; -.
DR   BioGRID-ORCS; 9188; 707 hits in 1170 CRISPR screens.
DR   ChiTaRS; DDX21; human.
DR   GeneWiki; DDX21; -.
DR   GenomeRNAi; 9188; -.
DR   Pharos; Q9NR30; Tbio.
DR   PRO; PR:Q9NR30; -.
DR   Proteomes; UP000005640; Chromosome 10.
DR   RNAct; Q9NR30; Protein.
DR   Bgee; ENSG00000165732; Expressed in pericardium and 209 other cell types or tissues.
DR   Genevisible; Q9NR30; HS.
DR   GO; GO:0110016; C:B-WICH complex; IDA:ComplexPortal.
DR   GO; GO:0005694; C:chromosome; IDA:HPA.
DR   GO; GO:0005829; C:cytosol; ISS:UniProtKB.
DR   GO; GO:0016020; C:membrane; HDA:UniProtKB.
DR   GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
DR   GO; GO:0005730; C:nucleolus; IDA:HPA.
DR   GO; GO:0005654; C:nucleoplasm; IDA:HPA.
DR   GO; GO:0097322; F:7SK snRNA binding; IDA:UniProtKB.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0016887; F:ATP hydrolysis activity; IEA:RHEA.
DR   GO; GO:0003725; F:double-stranded RNA binding; IEA:Ensembl.
DR   GO; GO:0042802; F:identical protein binding; IEA:Ensembl.
DR   GO; GO:0035198; F:miRNA binding; IDA:UniProtKB.
DR   GO; GO:0003723; F:RNA binding; HDA:UniProtKB.
DR   GO; GO:0003724; F:RNA helicase activity; IDA:UniProtKB.
DR   GO; GO:0140870; F:RNA polymerase inhibitor activity; TAS:ARUK-UCL.
DR   GO; GO:0019843; F:rRNA binding; IDA:UniProtKB.
DR   GO; GO:0030515; F:snoRNA binding; IDA:UniProtKB.
DR   GO; GO:0006338; P:chromatin remodeling; NAS:ComplexPortal.
DR   GO; GO:0051607; P:defense response to virus; IEA:UniProtKB-KW.
DR   GO; GO:0045087; P:innate immune response; IEA:UniProtKB-KW.
DR   GO; GO:0016479; P:negative regulation of transcription by RNA polymerase I; TAS:ARUK-UCL.
DR   GO; GO:0001649; P:osteoblast differentiation; HDA:UniProtKB.
DR   GO; GO:0043123; P:positive regulation of canonical NF-kappaB signal transduction; ISS:UniProtKB.
DR   GO; GO:0035066; P:positive regulation of histone acetylation; NAS:ComplexPortal.
DR   GO; GO:0002735; P:positive regulation of myeloid dendritic cell cytokine production; IEA:Ensembl.
DR   GO; GO:0045943; P:positive regulation of transcription by RNA polymerase I; NAS:ComplexPortal.
DR   GO; GO:0045944; P:positive regulation of transcription by RNA polymerase II; NAS:ComplexPortal.
DR   GO; GO:0045945; P:positive regulation of transcription by RNA polymerase III; IDA:ComplexPortal.
DR   GO; GO:0062176; P:R-loop processing; IDA:UniProtKB.
DR   GO; GO:0043330; P:response to exogenous dsRNA; IEA:Ensembl.
DR   GO; GO:0006364; P:rRNA processing; IEA:UniProtKB-KW.
DR   GO; GO:0006366; P:transcription by RNA polymerase II; IMP:UniProtKB.
DR   CDD; cd17944; DEADc_DDX21_DDX50; 1.
DR   CDD; cd12936; GUCT_RHII_Gualpha_beta; 1.
DR   CDD; cd18787; SF2_C_DEAD; 1.
DR   Gene3D; 3.30.70.2280; -; 1.
DR   Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 2.
DR   InterPro; IPR011545; DEAD/DEAH_box_helicase_dom.
DR   InterPro; IPR012562; GUCT.
DR   InterPro; IPR014001; Helicase_ATP-bd.
DR   InterPro; IPR001650; Helicase_C.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR035979; RBD_domain_sf.
DR   PANTHER; PTHR46321:SF1; KIF-BINDING PROTEIN; 1.
DR   PANTHER; PTHR46321; KIF1-BINDING PROTEIN; 1.
DR   Pfam; PF00270; DEAD; 1.
DR   Pfam; PF08152; GUCT; 1.
DR   Pfam; PF00271; Helicase_C; 1.
DR   SMART; SM00487; DEXDc; 1.
DR   SMART; SM00490; HELICc; 1.
DR   SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 2.
DR   SUPFAM; SSF54928; RNA-binding domain, RBD; 1.
DR   PROSITE; PS51192; HELICASE_ATP_BIND_1; 1.
DR   PROSITE; PS51194; HELICASE_CTER; 1.
DR   PROSITE; PS51195; Q_MOTIF; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Acetylation; Alternative splicing; Antiviral defense;
KW   ATP-binding; Cytoplasm; Direct protein sequencing; Helicase; Hydrolase;
KW   Immunity; Innate immunity; Isopeptide bond; Mitochondrion;
KW   Nucleotide-binding; Nucleus; Phosphoprotein; Reference proteome; Repeat;
KW   RNA-binding; rRNA processing; Transcription; Ubl conjugation.
FT   CHAIN           1..783
FT                   /note="Nucleolar RNA helicase 2"
FT                   /id="PRO_0000055027"
FT   DOMAIN          217..396
FT                   /note="Helicase ATP-binding"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00541"
FT   DOMAIN          429..573
FT                   /note="Helicase C-terminal"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00542"
FT   REPEAT          724..728
FT                   /note="1"
FT   REPEAT          734..738
FT                   /note="2"
FT   REPEAT          744..748
FT                   /note="3"
FT   REGION          1..188
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          708..783
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          724..748
FT                   /note="3 X 5 AA repeats"
FT   MOTIF           186..214
FT                   /note="Q motif"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00552"
FT   MOTIF           339..342
FT                   /note="DEAD box"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00541"
FT   COMPBIAS        11..153
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        731..752
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        758..783
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         230..237
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00541"
FT   MOD_RES         7
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:23186163"
FT   MOD_RES         13
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:18669648,
FT                   ECO:0007744|PubMed:19690332, ECO:0007744|PubMed:20068231,
FT                   ECO:0007744|PubMed:21406692, ECO:0007744|PubMed:23186163"
FT   MOD_RES         18
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000269|PubMed:28790157"
FT   MOD_RES         71
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:17081983,
FT                   ECO:0007744|PubMed:18669648, ECO:0007744|PubMed:20068231,
FT                   ECO:0007744|PubMed:21406692, ECO:0007744|PubMed:23186163"
FT   MOD_RES         89
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:17081983,
FT                   ECO:0007744|PubMed:17924679, ECO:0007744|PubMed:18669648,
FT                   ECO:0007744|PubMed:20068231, ECO:0007744|PubMed:21406692,
FT                   ECO:0007744|PubMed:23186163"
FT   MOD_RES         121
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000269|Ref.8, ECO:0007744|PubMed:17081983,
FT                   ECO:0007744|PubMed:19369195, ECO:0007744|PubMed:19690332,
FT                   ECO:0007744|PubMed:20068231, ECO:0007744|PubMed:21406692,
FT                   ECO:0007744|PubMed:23186163"
FT   MOD_RES         137
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000269|PubMed:28790157"
FT   MOD_RES         147
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:Q9JIK5"
FT   MOD_RES         164
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:Q9JIK5"
FT   MOD_RES         171
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:Q9JIK5"
FT   MOD_RES         173
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:Q9JIK5"
FT   MOD_RES         296
FT                   /note="Phosphothreonine"
FT                   /evidence="ECO:0007744|PubMed:20068231,
FT                   ECO:0007744|PubMed:23186163"
FT   MOD_RES         567
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:20068231,
FT                   ECO:0007744|PubMed:23186163"
FT   MOD_RES         600
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000269|PubMed:28790157"
FT   MOD_RES         779
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0007744|PubMed:19608861"
FT   CROSSLNK        116
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO1); alternate"
FT                   /evidence="ECO:0007744|PubMed:25114211"
FT   CROSSLNK        116
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO2); alternate"
FT                   /evidence="ECO:0007744|PubMed:28112733"
FT   VAR_SEQ         1..68
FT                   /note="Missing (in isoform 2)"
FT                   /evidence="ECO:0000303|PubMed:14702039,
FT                   ECO:0000303|PubMed:17974005"
FT                   /id="VSP_015716"
FT   VARIANT         27
FT                   /note="T -> I (in dbSNP:rs17556220)"
FT                   /evidence="ECO:0000269|PubMed:11237763,
FT                   ECO:0000269|PubMed:8614622"
FT                   /id="VAR_052161"
FT   MUTAGEN         18
FT                   /note="K->Q: Mimics acetylation; impaired ability to
FT                   resolve R-loops; when associated with Q-137 and Q-600."
FT                   /evidence="ECO:0000269|PubMed:28790157"
FT   MUTAGEN         137
FT                   /note="K->Q: Mimics acetylation; impaired ability to
FT                   resolve R-loops; when associated with Q-18 and Q-600."
FT                   /evidence="ECO:0000269|PubMed:28790157"
FT   MUTAGEN         339..340
FT                   /note="DE->HG: In mutant DEV; loss of helicase activity.
FT                   Defects in release of P-TEFb from inhibitory 7SK snRNP."
FT                   /evidence="ECO:0000269|PubMed:25470060,
FT                   ECO:0000269|PubMed:28790157, ECO:0000269|PubMed:9461305"
FT   MUTAGEN         375..376
FT                   /note="SA->LE: In mutant SAT; ATPase defective. Defects in
FT                   release of P-TEFb from inhibitory 7SK snRNP."
FT                   /evidence="ECO:0000269|PubMed:25470060,
FT                   ECO:0000269|PubMed:28790157, ECO:0000269|PubMed:9461305"
FT   MUTAGEN         600
FT                   /note="K->Q: Mimics acetylation; impaired ability to
FT                   resolve R-loops; when associated with Q-18 and Q-137."
FT                   /evidence="ECO:0000269|PubMed:28790157"
FT   CONFLICT        273
FT                   /note="A -> C (in Ref. 2; AAF78930)"
FT                   /evidence="ECO:0000305"
FT   HELIX           195..203
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           211..221
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          226..229
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           236..251
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          262..266
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           270..283
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          285..287
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          289..292
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          294..296
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           298..307
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          310..314
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           316..324
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          334..339
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           341..346
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   TURN            347..349
FT                   /evidence="ECO:0007829|PDB:6L5N"
FT   HELIX           350..360
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           365..367
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          370..376
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           380..386
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           387..389
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          395..400
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          402..404
FT                   /evidence="ECO:0007829|PDB:6L5N"
FT   STRAND          411..417
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           420..422
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           423..434
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          441..446
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           448..456
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   TURN            458..460
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           461..463
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          464..467
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           473..484
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          489..494
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           495..498
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          506..513
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           518..525
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          535..541
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           543..545
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   HELIX           546..556
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          561..563
FT                   /evidence="ECO:0007829|PDB:6L5O"
FT   STRAND          631..642
FT                   /evidence="ECO:0007829|PDB:2M3D"
FT   HELIX           651..660
FT                   /evidence="ECO:0007829|PDB:2M3D"
FT   TURN            664..667
FT                   /evidence="ECO:0007829|PDB:2M3D"
FT   HELIX           676..678
FT                   /evidence="ECO:0007829|PDB:2M3D"
FT   STRAND          679..686
FT                   /evidence="ECO:0007829|PDB:2M3D"
FT   HELIX           687..693
FT                   /evidence="ECO:0007829|PDB:2M3D"
FT   STRAND          704..707
FT                   /evidence="ECO:0007829|PDB:2M3D"
FT   MOD_RES         Q9NR30-2:1
FT                   /note="N-acetylmethionine"
FT                   /evidence="ECO:0007744|PubMed:22814378"
SQ   SEQUENCE   783 AA;  87344 MW;  4F6673E38686644F CRC64;
     MPGKLRSDAG LESDTAMKKG ETLRKQTEEK EKKEKPKSDK TEEIAEEEET VFPKAKQVKK
     KAEPSEVDMN SPKSKKAKKK EEPSQNDISP KTKSLRKKKE PIEKKVVSSK TKKVTKNEEP
     SEEEIDAPKP KKMKKEKEMN GETREKSPKL KNGFPHPEPD CNPSEAASEE SNSEIEQEIP
     VEQKEGAFSN FPISEETIKL LKGRGVTFLF PIQAKTFHHV YSGKDLIAQA RTGTGKTFSF
     AIPLIEKLHG ELQDRKRGRA PQVLVLAPTR ELANQVSKDF SDITKKLSVA CFYGGTPYGG
     QFERMRNGID ILVGTPGRIK DHIQNGKLDL TKLKHVVLDE VDQMLDMGFA DQVEEILSVA
     YKKDSEDNPQ TLLFSATCPH WVFNVAKKYM KSTYEQVDLI GKKTQKTAIT VEHLAIKCHW
     TQRAAVIGDV IRVYSGHQGR TIIFCETKKE AQELSQNSAI KQDAQSLHGD IPQKQREITL
     KGFRNGSFGV LVATNVAARG LDIPEVDLVI QSSPPKDVES YIHRSGRTGR AGRTGVCICF
     YQHKEEYQLV QVEQKAGIKF KRIGVPSATE IIKASSKDAI RLLDSVPPTA ISHFKQSAEK
     LIEEKGAVEA LAAALAHISG ATSVDQRSLI NSNVGFVTMI LQCSIEMPNI SYAWKELKEQ
     LGEEIDSKVK GMVFLKGKLG VCFDVPTASV TEIQEKWHDS RRWQLSVATE QPELEGPREG
     YGGFRGQREG SRGFRGQRDG NRRFRGQREG SRGPRGQRSG GGNKSNRSQN KGQKRSFSKA
     FGQ
//
DBGET integrated database retrieval system