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Q13868 (EXOS2_HUMAN) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 139. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (4) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Exosome complex component RRP4
Alternative name(s):
Exosome component 2
Ribosomal RNA-processing protein 4
Gene names
Name:EXOSC2
Synonyms:RRP4
OrganismHomo sapiens (Human) [Reference proteome]
Taxonomic identifier9606 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

Protein attributes

Sequence length293 AA.
Sequence statusComplete.
Protein existenceEvidence at protein level

General annotation (Comments)

Function

Non-catalytic component of the RNA exosome complex which has 3'->5' exoribonuclease activity and participates in a multitude of cellular RNA processing and degradation events. In the nucleus, the RNA exosome complex is involved in proper maturation of stable RNA species such as rRNA, snRNA and snoRNA, in the elimination of RNA processing by-products and non-coding 'pervasive' transcripts, such as antisense RNA species and promoter-upstream transcripts (PROMPTs), and of mRNAs with processing defects, thereby limiting or excluding their export to the cytoplasm. The RNA exosome may be involved in Ig class switch recombination (CSR) and/or Ig variable region somatic hypermutation (SHM) by targeting AICDA deamination activity to transcribed dsDNA substrates. In the cytoplasm, the RNA exosome complex is involved in general mRNA turnover and specifically degrades inherently unstable mRNAs containing AU-rich elements (AREs) within their 3' untranslated regions, and in RNA surveillance pathways, preventing translation of aberrant mRNAs. It seems to be involved in degradation of histone mRNA. The catalytic inactive RNA exosome core complex of 9 subunits (Exo-9) is proposed to play a pivotal role in the binding and presentation of RNA for ribonucleolysis, and to serve as a scaffold for the association with catalytic subunits and accessory proteins or complexes. EXOSC2 as peripheral part of the Exo-9 complex stabilizes the hexameric ring of RNase PH-domain subunits through contacts with EXOSC4 and EXOSC7. Ref.10

Subunit structure

Component of the RNA exosome complex. Specifically part of the catalytically inactive RNA exosome core (Exo-9) complex which is believed to associate with catalytic subunits EXOSC10, and DIS3 or DIS3L in cytoplasmic- and nuclear-specific RNA exosome complex forms. Exo-9 is formed by a hexameric ring of RNase PH domain-containing subunits specifically containing the heterodimers EXOSC4-EXOSC9, EXOSC5-EXOSC8 and EXOSC6-EXOSC7, and peripheral S1 domain-containing components EXOSC1, EXOSC2 and EXOSC3 located on the top of the ring structure. Interacts with GTPBP1. Ref.9 Ref.14 Ref.17

Subcellular location

Cytoplasm. Nucleusnucleolus. Nucleus Ref.10 Ref.14.

Sequence similarities

Belongs to the RRP4 family.

Contains 1 S1 motif domain.

Sequence caution

The sequence AAB60392.1 differs from that shown. Reason: Erroneous gene model prediction.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 293293Exosome complex component RRP4
PRO_0000087129

Regions

Domain79 – 15981S1 motif

Amino acid modifications

Modified residue1241Phosphoserine Ref.13 Ref.15

Secondary structure

......................................... 293
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
Q13868 [UniParc].

Last modified April 27, 2001. Version 2.
Checksum: 882033F50791643F

FASTA29332,789
        10         20         30         40         50         60 
MAMEMRLPVA RKPLSERLGR DTKKHLVVPG DTITTDTGFM RGHGTYMGEE KLIASVAGSV 

        70         80         90        100        110        120 
ERVNKLICVK ALKTRYIGEV GDIVVGRITE VQQKRWKVET NSRLDSVLLL SSMNLPGGEL 

       130        140        150        160        170        180 
RRRSAEDELA MRGFLQEGDL ISAEVQAVFS DGAVSLHTRS LKYGKLGQGV LVQVSPSLVK 

       190        200        210        220        230        240 
RQKTHFHDLP CGASVILGNN GFIWIYPTPE HKEEEAGGFI ANLEPVSLAD REVISRLRNC 

       250        260        270        280        290 
IISLVTQRMM LYDTSILYCY EASLPHQIKD ILKPEIMEEI VMETRQRLLE QEG 

« Hide

References

« Hide 'large scale' references
[1]"Sequence of the human abl and bcr genes."
Chissoe S.L.
Thesis (1994), University of Oklahoma, United States
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
Tissue: Lung carcinoma.
[2]"The exosome: a conserved eukaryotic RNA processing complex containing multiple 3'-->5' exoribonucleases."
Mitchell P., Petfalski E., Shevchenko A., Mann M., Tollervey D.
Cell 91:457-466(1997) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA], SEQUENCE REVISION.
Tissue: Cervix adenocarcinoma.
[3]"Complete sequencing and characterization of 21,243 full-length human cDNAs."
Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. expand/collapse author list , Yamamoto J., Saito K., Kawai Y., Isono Y., Nakamura Y., Nagahari K., Murakami K., Yasuda T., Iwayanagi T., Wagatsuma M., Shiratori A., Sudo H., Hosoiri T., Kaku Y., Kodaira H., Kondo H., Sugawara M., Takahashi M., Kanda K., Yokoi T., Furuya T., Kikkawa E., Omura Y., Abe K., Kamihara K., Katsuta N., Sato K., Tanikawa M., Yamazaki M., Ninomiya K., Ishibashi T., Yamashita H., Murakawa K., Fujimori K., Tanai H., Kimata M., Watanabe M., Hiraoka S., Chiba Y., Ishida S., Ono Y., Takiguchi S., Watanabe S., Yosida M., Hotuta T., Kusano J., Kanehori K., Takahashi-Fujii A., Hara H., Tanase T.-O., Nomura Y., Togiya S., Komai F., Hara R., Takeuchi K., Arita M., Imose N., Musashino K., Yuuki H., Oshima A., Sasaki N., Aotsuka S., Yoshikawa Y., Matsunawa H., Ichihara T., Shiohata N., Sano S., Moriya S., Momiyama H., Satoh N., Takami S., Terashima Y., Suzuki O., Nakagawa S., Senoh A., Mizoguchi H., Goto Y., Shimizu F., Wakebe H., Hishigaki H., Watanabe T., Sugiyama A., Takemoto M., Kawakami B., Yamazaki M., Watanabe K., Kumagai A., Itakura S., Fukuzumi Y., Fujimori Y., Komiyama M., Tashiro H., Tanigami A., Fujiwara T., Ono T., Yamada K., Fujii Y., Ozaki K., Hirao M., Ohmori Y., Kawabata A., Hikiji T., Kobatake N., Inagaki H., Ikema Y., Okamoto S., Okitani R., Kawakami T., Noguchi S., Itoh T., Shigeta K., Senba T., Matsumura K., Nakajima Y., Mizuno T., Morinaga M., Sasaki M., Togashi T., Oyama M., Hata H., Watanabe M., Komatsu T., Mizushima-Sugano J., Satoh T., Shirai Y., Takahashi Y., Nakagawa K., Okumura K., Nagase T., Nomura N., Kikuchi H., Masuho Y., Yamashita R., Nakai K., Yada T., Nakamura Y., Ohara O., Isogai T., Sugano S.
Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Tissue: Mammary gland and Placenta.
[4]"DNA sequence and analysis of human chromosome 9."
Humphray S.J., Oliver K., Hunt A.R., Plumb R.W., Loveland J.E., Howe K.L., Andrews T.D., Searle S., Hunt S.E., Scott C.E., Jones M.C., Ainscough R., Almeida J.P., Ambrose K.D., Ashwell R.I.S., Babbage A.K., Babbage S., Bagguley C.L. expand/collapse author list , Bailey J., Banerjee R., Barker D.J., Barlow K.F., Bates K., Beasley H., Beasley O., Bird C.P., Bray-Allen S., Brown A.J., Brown J.Y., Burford D., Burrill W., Burton J., Carder C., Carter N.P., Chapman J.C., Chen Y., Clarke G., Clark S.Y., Clee C.M., Clegg S., Collier R.E., Corby N., Crosier M., Cummings A.T., Davies J., Dhami P., Dunn M., Dutta I., Dyer L.W., Earthrowl M.E., Faulkner L., Fleming C.J., Frankish A., Frankland J.A., French L., Fricker D.G., Garner P., Garnett J., Ghori J., Gilbert J.G.R., Glison C., Grafham D.V., Gribble S., Griffiths C., Griffiths-Jones S., Grocock R., Guy J., Hall R.E., Hammond S., Harley J.L., Harrison E.S.I., Hart E.A., Heath P.D., Henderson C.D., Hopkins B.L., Howard P.J., Howden P.J., Huckle E., Johnson C., Johnson D., Joy A.A., Kay M., Keenan S., Kershaw J.K., Kimberley A.M., King A., Knights A., Laird G.K., Langford C., Lawlor S., Leongamornlert D.A., Leversha M., Lloyd C., Lloyd D.M., Lovell J., Martin S., Mashreghi-Mohammadi M., Matthews L., McLaren S., McLay K.E., McMurray A., Milne S., Nickerson T., Nisbett J., Nordsiek G., Pearce A.V., Peck A.I., Porter K.M., Pandian R., Pelan S., Phillimore B., Povey S., Ramsey Y., Rand V., Scharfe M., Sehra H.K., Shownkeen R., Sims S.K., Skuce C.D., Smith M., Steward C.A., Swarbreck D., Sycamore N., Tester J., Thorpe A., Tracey A., Tromans A., Thomas D.W., Wall M., Wallis J.M., West A.P., Whitehead S.L., Willey D.L., Williams S.A., Wilming L., Wray P.W., Young L., Ashurst J.L., Coulson A., Blocker H., Durbin R.M., Sulston J.E., Hubbard T., Jackson M.J., Bentley D.R., Beck S., Rogers J., Dunham I.
Nature 429:369-374(2004) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[5]Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. expand/collapse author list , Yooseph S., Lu F., Nusskern D.R., Shue B.C., Zheng X.H., Zhong F., Delcher A.L., Huson D.H., Kravitz S.A., Mouchard L., Reinert K., Remington K.A., Clark A.G., Waterman M.S., Eichler E.E., Adams M.D., Hunkapiller M.W., Myers E.W., Venter J.C.
Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[6]"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
The MGC Project Team
Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Tissue: Lung.
[7]"The 3' end of yeast 5.8S rRNA is generated by an exonuclease processing mechanism."
Mitchell P., Petfalski E., Tollervey D.
Genes Dev. 10:502-513(1996) [PubMed] [Europe PMC] [Abstract]
Cited for: CHARACTERIZATION.
[8]"The yeast exosome and human PM-Scl are related complexes of 3'-->5' exonucleases."
Allmang C., Petfalski E., Podtelejnikov A., Mann M., Tollervey D., Mitchell P.
Genes Dev. 13:2148-2158(1999) [PubMed] [Europe PMC] [Abstract]
Cited for: CHARACTERIZATION.
[9]"AU binding proteins recruit the exosome to degrade ARE-containing mRNAs."
Chen C.-Y., Gherzi R., Ong S.-E., Chan E.L., Raijmakers R., Pruijn G.J.M., Stoecklin G., Moroni C., Mann M., Karin M.
Cell 107:451-464(2001) [PubMed] [Europe PMC] [Abstract]
Cited for: IDENTIFICATION BY MASS SPECTROMETRY, IDENTIFICATION IN THE RNA EXOSOME CORE COMPLEX, PROTEIN INTERACTION.
[10]"Human cell growth requires a functional cytoplasmic exosome, which is involved in various mRNA decay pathways."
van Dijk E.L., Schilders G., Pruijn G.J.
RNA 13:1027-1035(2007) [PubMed] [Europe PMC] [Abstract]
Cited for: FUNCTION IN MRNA DEGRADATION, SUBCELLULAR LOCATION.
[11]"A quantitative atlas of mitotic phosphorylation."
Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P.
Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed] [Europe PMC] [Abstract]
Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
Tissue: Cervix carcinoma.
[12]"Lys-N and trypsin cover complementary parts of the phosphoproteome in a refined SCX-based approach."
Gauci S., Helbig A.O., Slijper M., Krijgsveld J., Heck A.J., Mohammed S.
Anal. Chem. 81:4493-4501(2009) [PubMed] [Europe PMC] [Abstract]
Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
[13]"Quantitative phosphoproteomic analysis of T cell receptor signaling reveals system-wide modulation of protein-protein interactions."
Mayya V., Lundgren D.H., Hwang S.-I., Rezaul K., Wu L., Eng J.K., Rodionov V., Han D.K.
Sci. Signal. 2:RA46-RA46(2009) [PubMed] [Europe PMC] [Abstract]
Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-124, IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
Tissue: Leukemic T-cell.
[14]"Dis3-like 1: a novel exoribonuclease associated with the human exosome."
Staals R.H., Bronkhorst A.W., Schilders G., Slomovic S., Schuster G., Heck A.J., Raijmakers R., Pruijn G.J.
EMBO J. 29:2358-2367(2010) [PubMed] [Europe PMC] [Abstract]
Cited for: IDENTIFICATION IN THE RNA EXOSOME COMPLEX, IDENTIFICATION BY MASS SPECTROMETRY, SUBCELLULAR LOCATION, INTERACTION WITH DIS3.
[15]"Quantitative phosphoproteomics reveals widespread full phosphorylation site occupancy during mitosis."
Olsen J.V., Vermeulen M., Santamaria A., Kumar C., Miller M.L., Jensen L.J., Gnad F., Cox J., Jensen T.S., Nigg E.A., Brunak S., Mann M.
Sci. Signal. 3:RA3-RA3(2010) [PubMed] [Europe PMC] [Abstract]
Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-124, IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
Tissue: Cervix carcinoma.
[16]"Initial characterization of the human central proteome."
Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., Bennett K.L., Superti-Furga G., Colinge J.
BMC Syst. Biol. 5:17-17(2011) [PubMed] [Europe PMC] [Abstract]
Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
[17]"Modulation of exosome-mediated mRNA turnover by interaction of GTP-binding protein 1 (GTPBP1) with its target mRNAs."
Woo K.C., Kim T.D., Lee K.H., Kim D.Y., Kim S., Lee H.R., Kang H.J., Chung S.J., Senju S., Nishimura Y., Kim K.T.
FASEB J. 25:2757-2769(2011) [PubMed] [Europe PMC] [Abstract]
Cited for: INTERACTION WITH GTPBP1.
[18]"Reconstitution, activities, and structure of the eukaryotic RNA exosome."
Liu Q., Greimann J.C., Lima C.D.
Cell 127:1223-1237(2006) [PubMed] [Europe PMC] [Abstract]
Cited for: X-RAY CRYSTALLOGRAPHY (3.35 ANGSTROMS), RECONSTITUTION OF THE RNA EXOSOME CORE COMPLEX.
[19]Erratum
Liu Q., Greimann J.C., Lima C.D.
Cell 131:188-189(2007)
+Additional computationally mapped references.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
U07561 Genomic DNA. Translation: AAB60392.1. Sequence problems.
AK001916 mRNA. Translation: BAA91977.1.
AK022460 mRNA. Translation: BAB14043.1.
AL359092 Genomic DNA. Translation: CAM45748.1.
CH471090 Genomic DNA. Translation: EAW87944.1.
BC000747 mRNA. Translation: AAH00747.1.
RefSeqNP_055100.2. NM_014285.6.
UniGeneHs.654643.

3D structure databases

PDBe
RCSB PDB
PDBj
EntryMethodResolution (Å)ChainPositionsPDBsum
2NN6X-ray3.35H1-293[»]
ProteinModelPortalQ13868.
SMRQ13868. Positions 25-293.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

BioGrid116977. 29 interactions.
IntActQ13868. 34 interactions.
MINTMINT-2633872.
STRING9606.ENSP00000361433.

PTM databases

PhosphoSiteQ13868.

Polymorphism databases

DMDM13878748.

Proteomic databases

PaxDbQ13868.
PRIDEQ13868.

Protocols and materials databases

DNASU23404.
StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblENST00000372358; ENSP00000361433; ENSG00000130713.
GeneID23404.
KEGGhsa:23404.
UCSCuc004bzu.2. human.

Organism-specific databases

CTD23404.
GeneCardsGC09P133569.
H-InvDBHIX0008473.
HGNCHGNC:17097. EXOSC2.
HPAHPA021790.
MIM602238. gene.
neXtProtNX_Q13868.
PharmGKBPA134876020.
GenAtlasSearch...

Phylogenomic databases

eggNOGCOG1097.
HOGENOMHOG000193685.
HOVERGENHBG051517.
InParanoidQ13868.
KOK03679.
OMAPLKTRYN.
OrthoDBEOG7JX34R.
PhylomeDBQ13868.
TreeFamTF105623.

Enzyme and pathway databases

ReactomeREACT_21257. Metabolism of RNA.
REACT_71. Gene Expression.

Gene expression databases

ArrayExpressQ13868.
BgeeQ13868.
CleanExHS_EXOSC2.
GenevestigatorQ13868.

Family and domain databases

InterProIPR025721. Exosome_cplx_N_dom.
IPR026699. Exosome_RNA_bind1/RRP40/RRP4.
IPR004088. KH_dom_type_1.
IPR012340. NA-bd_OB-fold.
IPR022967. RNA-binding_domain_S1.
[Graphical view]
PANTHERPTHR21321. PTHR21321. 1 hit.
PfamPF14382. ECR1_N. 1 hit.
[Graphical view]
SMARTSM00316. S1. 1 hit.
[Graphical view]
SUPFAMSSF50249. SSF50249. 1 hit.
SSF54791. SSF54791. 1 hit.
ProtoNetSearch...

Other

ChiTaRSEXOSC2. human.
EvolutionaryTraceQ13868.
GeneWikiExosome_component_2.
GenomeRNAi23404.
NextBio45573.
PROQ13868.
SOURCESearch...

Entry information

Entry nameEXOS2_HUMAN
AccessionPrimary (citable) accession number: Q13868
Secondary accession number(s): A3KFL3, Q9NUY4
Entry history
Integrated into UniProtKB/Swiss-Prot: April 27, 2001
Last sequence update: April 27, 2001
Last modified: April 16, 2014
This is version 139 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Relevant documents

SIMILARITY comments

Index of protein domains and families

PDB cross-references

Index of Protein Data Bank (PDB) cross-references

MIM cross-references

Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot

Human chromosome 9

Human chromosome 9: entries, gene names and cross-references to MIM