Q8IU60 (DCP2_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 99.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: m7GpppN-mRNA hydrolase EC=3.6.1.62 Alternative name(s): Nucleoside diphosphate-linked moiety X motif 20 Short name=Nudix motif 20 mRNA-decapping enzyme 2 Short name=hDpc | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 420 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Decapping metalloenzyme that catalyzes the cleavage of the cap structure on mRNAs. Removes the 7-methyl guanine cap structure from mRNA molecules, yielding a 5'-phosphorylated mRNA fragment and 7m-GDP. Necessary for the degradation of mRNAs, both in normal mRNA turnover and in nonsense-mediated mRNA decay. Plays a role in replication-dependent histone mRNA degradation. Has higher activity towards mRNAs that lack a poly(A) tail. Has no activity towards a cap structure lacking a RNA moiety. Ref.1 Ref.2 Ref.6 Ref.8 Ref.9 Ref.17 Ref.20 |
| Catalytic activity | M7G5'ppp5'-mRNA + H2O = m7GDP + 5'-phospho-mRNA. Ref.6 Ref.20 |
| Cofactor | Manganese. Required for highest activity. Can also utilize magnesium ions. Ref.9 |
| Subunit structure | Found in a mRNA decay complex with LSM1, LSM3, LSM4, EXOSC2, EXOSC4, EXOSC10, PARN, XRN1, CNOT6, UPF1, UPF2 and UPF3B. Forms a complex with DCP1A, EDC3, DDX6 and EDC4/HEDLS, within this complex directly interacts with EDC4/HEDLS. Interacts with DPC1B, UPF1, UPF2 and UPF3B. Interacts (via N-terminus and C-terminus) with TRIM21 (via N-terminus and C-terminus). Associates with polysomes. Interacts with LIMD1, WTIP and AJUBA. Interacts with DDX17 in an RNA-dependent manner. Interacts with ZC3HAV1. Interacts with APOBEC3G in an RNA-dependent manner. Ref.1 Ref.8 Ref.10 Ref.11 Ref.13 Ref.14 Ref.16 Ref.21 Ref.23 |
| Subcellular location | Cytoplasm › P-body. Nucleus. Note: Predominantly cytoplasmic, in processing bodies (PB). A minor amount is nuclear. Ref.1 Ref.2 Ref.6 Ref.7 Ref.8 Ref.11 Ref.12 Ref.13 Ref.21 |
| Tissue specificity | Expressed in brain and testis. Not detected in heart (at protein level). Ref.20 |
| Sequence similarities | Belongs to the Nudix hydrolase family. DCP2 subfamily. Contains 1 nudix hydrolase domain. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| DCP1A | Q9NPI6 | 6 | EBI-521577,EBI-374238 | |
| DCP1B | Q8IZD4 | 3 | EBI-521577,EBI-521595 | |
| EDC4 | Q6P2E9 | 4 | EBI-521577,EBI-1006038 | |
| UPF1 | Q92900 | 3 | EBI-521577,EBI-373471 |
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q8IU60-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q8IU60-2) The sequence of this isoform differs from the canonical sequence as follows: 315-349: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 420 | 420 | m7GpppN-mRNA hydrolase | PRO_0000057051 | |||||
Regions | |||||||||
| Domain | 95 – 226 | 132 | Nudix hydrolase | ||||||
| Motif | 129 – 150 | 22 | Nudix box | ||||||
Sites | |||||||||
| Metal binding | 144 | 1 | Manganese By similarity | ||||||
| Metal binding | 148 | 1 | Manganese By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 246 | 1 | Phosphoserine Ref.18 Ref.24 | ||||||
| Modified residue | 247 | 1 | Phosphoserine Ref.18 Ref.24 | ||||||
| Modified residue | 249 | 1 | Phosphoserine Ref.18 Ref.24 | ||||||
| Modified residue | 276 | 1 | Phosphoserine Ref.15 | ||||||
| Modified residue | 284 | 1 | Phosphoserine Ref.15 Ref.18 Ref.19 Ref.22 | ||||||
Natural variations | |||||||||
| Alternative sequence | 315 – 349 | 35 | Missing in isoform 2. | VSP_012908 | |||||
| Natural variant | 16 | 1 | F → L. Ref.1 Ref.2 Ref.3 Ref.5 Corresponds to variant rs33555 [ dbSNP | Ensembl ]. | VAR_059528 | |||||
Experimental info | |||||||||
| Mutagenesis | 147 | 1 | E → Q: Loss of decapping activity; when associated with Q-148. Ref.2 | ||||||
| Mutagenesis | 148 | 1 | E → Q: Strongly reduced decapping activity. Ref.1 Ref.2 | ||||||
| Sequence conflict | 103 | 1 | I → V in BAC03479. Ref.3 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Identification of a human decapping complex associated with hUpf proteins in nonsense-mediated decay." Lykke-Andersen J. Mol. Cell. Biol. 22:8114-8121(2002) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION, MUTAGENESIS OF GLU-148, SUBCELLULAR LOCATION, INTERACTION WITH DCP1A AND UPF1, VARIANT LEU-16. |
| [2] | "The hDcp2 protein is a mammalian mRNA decapping enzyme." Wang Z., Jiao X., Carr-Schmid A., Kiledjian M. Proc. Natl. Acad. Sci. U.S.A. 99:12663-12668(2002) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), FUNCTION, MUTAGENESIS OF 147-GLU-GLU-148, SUBCELLULAR LOCATION, ASSOCIATION WITH POLYSOMES, VARIANT LEU-16. Tissue: Erythroleukemia. |
| [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. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1), VARIANT LEU-16. |
| [4] | "The DNA sequence and comparative analysis of human chromosome 5." Schmutz J., Martin J., Terry A., Couronne O., Grimwood J., Lowry S., Gordon L.A., Scott D., Xie G., Huang W., Hellsten U., Tran-Gyamfi M., She X., Prabhakar S., Aerts A., Altherr M., Bajorek E., Black S. Rubin E.M.Nature 431:268-274(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | "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] (ISOFORMS 1 AND 2), VARIANT LEU-16. Tissue: Blood and Uterus. |
| [6] | "Human Dcp2: a catalytically active mRNA decapping enzyme located in specific cytoplasmic structures." van Dijk E., Cougot N., Meyer S., Babajko S., Wahle E., Seraphin B. EMBO J. 21:6915-6924(2002) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, CATALYTIC ACTIVITY, SUBCELLULAR LOCATION. |
| [7] | "The human LSm1-7 proteins colocalize with the mRNA-degrading enzymes Dcp1/2 and Xrnl in distinct cytoplasmic foci." Ingelfinger D., Arndt-Jovin D.J., Luehrmann R., Achsel T. RNA 8:1489-1501(2002) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION, ASSOCIATION WITH A COMPLEX CONTAINING ENZYMES INVOLVED IN MRNA DECAY. |
| [8] | "Nonsense-mediated mRNA decay in mammalian cells involves decapping, deadenylating, and exonucleolytic activities." Lejeune F., Li X., Maquat L.E. Mol. Cell 12:675-687(2003) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION IN NONSENSE-MEDIATED MRNA DECAY, IDENTIFICATION IN A MRNA DECAY COMPLEX WITH UPF1; UPF2 AND UPF3B, SUBCELLULAR LOCATION. |
| [9] | "Functional characterization of the mammalian mRNA decapping enzyme hDcp2." Piccirillo C., Khanna R., Kiledjian M. RNA 9:1138-1147(2003) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, RNA-BINDING, COFACTOR. |
| [10] | "A protein interaction framework for human mRNA degradation." Lehner B., Sanderson C.M. Genome Res. 14:1315-1323(2004) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH DCP1A AND DCP1B. |
| [11] | "Cytoplasmic foci are sites of mRNA decay in human cells." Cougot N., Babajko S., Seraphin B. J. Cell Biol. 165:31-40(2004) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION, INTERACTION WITH DCP1A. |
| [12] | "Functional analysis of mRNA scavenger decapping enzymes." Liu S.-W., Jiao X., Liu H., Gu M., Lima C.D., Kiledjian M. RNA 10:1412-1422(2004) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION. |
| [13] | "Multiple processing body factors and the ARE binding protein TTP activate mRNA decapping." Fenger-Groen M., Fillman C., Norrild B., Lykke-Andersen J. Mol. Cell 20:905-915(2005) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH DCP1A; EDC3; EDC4 AND DDX6, SUBCELLULAR LOCATION. |
| [14] | "Human retroviral host restriction factors APOBEC3G and APOBEC3F localize to mRNA processing bodies." Wichroski M.J., Robb G.B., Rana T.M. PLoS Pathog. 2:E41-E41(2006) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH APOBEC3G. |
| [15] | "ATM and ATR substrate analysis reveals extensive protein networks responsive to DNA damage." Matsuoka S., Ballif B.A., Smogorzewska A., McDonald E.R. III, Hurov K.E., Luo J., Bakalarski C.E., Zhao Z., Solimini N., Lerenthal Y., Shiloh Y., Gygi S.P., Elledge S.J. Science 316:1160-1166(2007) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-276 AND SER-284, MASS SPECTROMETRY. Tissue: Embryonic kidney. |
| [16] | "SSA/Ro52 autoantigen interacts with Dcp2 to enhance its decapping activity." Yamochi T., Ohnuma K., Hosono O., Tanaka H., Kanai Y., Morimoto C. Biochem. Biophys. Res. Commun. 370:195-199(2008) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH TRIM21. |
| [17] | "Degradation of histone mRNA requires oligouridylation followed by decapping and simultaneous degradation of the mRNA both 5' to 3' and 3' to 5'." Mullen T.E., Marzluff W.F. Genes Dev. 22:50-65(2008) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION IN HISTONE MRNA DEGRADATION ACTIVITY. |
| [18] | "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: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-246; SER-247; SER-249 AND SER-284, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [19] | "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-284, MASS SPECTROMETRY. Tissue: Leukemic T-cell. |
| [20] | "Multiple mRNA decapping enzymes in mammalian cells." Song M.G., Li Y., Kiledjian M. Mol. Cell 40:423-432(2010) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION AS A DECAPPING ENZYME, CATALYTIC ACTIVITY, TISSUE SPECIFICITY. |
| [21] | "LIM-domain proteins, LIMD1, Ajuba, and WTIP are required for microRNA-mediated gene silencing." James V., Zhang Y., Foxler D.E., de Moor C.H., Kong Y.W., Webb T.M., Self T.J., Feng Y., Lagos D., Chu C.Y., Rana T.M., Morley S.J., Longmore G.D., Bushell M., Sharp T.V. Proc. Natl. Acad. Sci. U.S.A. 107:12499-12504(2010) [PubMed] [Europe PMC] [Abstract] Cited for: SUBCELLULAR LOCATION, INTERACTION WITH LIMD1; WTIP AND AJUBA. |
| [22] | "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-284, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [23] | "Zinc-finger antiviral protein inhibits HIV-1 infection by selectively targeting multiply spliced viral mRNAs for degradation." Zhu Y., Chen G., Lv F., Wang X., Ji X., Xu Y., Sun J., Wu L., Zheng Y.T., Gao G. Proc. Natl. Acad. Sci. U.S.A. 108:15834-15839(2011) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH ZC3HAV1 AND DDX17. |
| [24] | "System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation." Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T., Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B. Sci. Signal. 4:RS3-RS3(2011) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-246; SER-247 AND SER-249, MASS SPECTROMETRY. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AY146650 mRNA. Translation: AAN62762.1. AY135173 mRNA. Translation: AAN08884.1. AK090564 mRNA. Translation: BAC03479.1. AC008536 Genomic DNA. No translation available. BC045596 mRNA. Translation: AAH45596.1. BC064593 mRNA. Translation: AAH64593.1. |
| IPI | IPI00292382. IPI00440151. |
| RefSeq | NP_001229306.1. NM_001242377.1. NP_689837.2. NM_152624.5. |
| UniGene | Hs.443875. |
3D structure databases | |
| ProteinModelPortal | Q8IU60. |
| SMR | Q8IU60. Positions 12-242. |
| ModBase | Search... |
Protein-protein interaction databases | |
| DIP | DIP-31126N. |
| IntAct | Q8IU60. 11 interactions. |
| STRING | 9606.ENSP00000373715. |
PTM databases | |
| PhosphoSite | Q8IU60. |
Polymorphism databases | |
| DMDM | 269849560. |
Proteomic databases | |
| PaxDb | Q8IU60. |
| PRIDE | Q8IU60. |
Protocols and materials databases | |
| DNASU | 167227. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000389063; ENSP00000373715; ENSG00000172795. ENST00000515408; ENSP00000425770; ENSG00000172795. |
| GeneID | 167227. |
| KEGG | hsa:167227. |
| UCSC | uc003kqh.3. human. uc010jcc.3. human. |
Organism-specific databases | |
| CTD | 167227. |
| GeneCards | GC05P112340. |
| HGNC | HGNC:24452. DCP2. |
| HPA | CAB011677. |
| MIM | 609844. gene. |
| neXtProt | NX_Q8IU60. |
| PharmGKB | PA134898646. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | COG0494. |
| HOGENOM | HOG000005974. |
| HOVERGEN | HBG051321. |
| InParanoid | Q8IU60. |
| KO | K12613. |
| OMA | PGVPKDT. |
Enzyme and pathway databases | |
| Reactome | REACT_21257. Metabolism of RNA. REACT_71. Gene Expression. |
Gene expression databases | |
| ArrayExpress | Q8IU60. |
| Bgee | Q8IU60. |
| CleanEx | HS_DCP2. |
| Genevestigator | Q8IU60. |
| GermOnline | ENSG00000172795. Homo sapiens. |
Family and domain databases | |
| Gene3D | 3.90.79.10. 1 hit. |
| InterPro | IPR007722. mRNA_decapping_BoxA. IPR020084. NUDIX_hydrolase_CS. IPR000086. NUDIX_hydrolase_dom. IPR015797. NUDIX_hydrolase_dom-like. [Graphical view] |
| Pfam | PF05026. DCP2. 1 hit. PF00293. NUDIX. 1 hit. [Graphical view] |
| SUPFAM | SSF55811. NUDIX_hydrolase. 1 hit. |
| PROSITE | PS51462. NUDIX. 1 hit. PS00893. NUDIX_BOX. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | DCP2. human. |
| GenomeRNAi | 167227. |
| NextBio | 88663. |
| SOURCE | Search... |
Entry information
| Entry name | DCP2_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q8IU60 Secondary accession number(s): C9J778 Q8NBG5 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any 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
| Human chromosome 5 Human chromosome 5: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
