m7GpppN-mRNA hydrolase - Q8IU60 (DCP2_HUMAN)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for Q8IU60: 1
 
Function
Decapping metalloenzyme that catalyzes the cleavage of the cap structure on mRNAs (PubMed:12417715, PubMed:12218187, PubMed:12923261, PubMed:21070968). Removes the 7-methyl guanine cap structure from mRNA molecules, yielding a 5'-phosphorylated mRNA fragment and 7m-GDP (PubMed:12486012, PubMed:12923261, PubMed:21070968). Necessary for the degradation of mRNAs, both in normal mRNA turnover and in nonsense-mediated mRNA decay (PubMed:14527413). Plays a role in replication-dependent histone mRNA degradation (PubMed:18172165). Has higher activity towards mRNAs that lack a poly(A) tail (PubMed:21070968). Has no activity towards a cap structure lacking an RNA moiety (PubMed:21070968). Blocks autophagy in nutrient-rich conditions by repressing the expression of ATG-related genes through degration of their transcripts (PubMed:26098573). UniProt
Catalytic Activity
5'-N7-methylguanosine 5'-triphospho-[mRNA] + H2O = N7-methylguanosine 5'-diphosphate + 5'-phospho-[mRNA]. UniProt
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Subunit Structure
Found in a mRNA decay complex with LSM1, LSM3, LSM4, EXOSC2, EXOSC4, EXOSC10, PARN, XRN1, CNOT6, UPF1, UPF2 and UPF3B (PubMed:12417715, PubMed:12515382, PubMed:14527413). Forms a complex with DCP1A, EDC3, DDX6 and EDC4/HEDLS, within this complex directly interacts with EDC4/HEDLS (PubMed:15231747, PubMed:15067023, PubMed:16364915). Interacts with DPC1B (PubMed:15231747). Interacts (via N-terminus and C-terminus) with TRIM21 (via N-terminus and C-terminus) (PubMed:18361920). Associates with polysomes (PubMed:12218187). Interacts with LIMD1, WTIP and AJUBA (PubMed:20616046). Interacts with DDX17 in an RNA-dependent manner (PubMed:21876179). Interacts with ZC3HAV1 (PubMed:21876179). Interacts with APOBEC3G in an RNA-dependent manner (PubMed:16699599). Interacts with ZFP36L1 (via N-terminus) (PubMed:15687258). Interacts with NBDY (PubMed:27918561). UniProt
  • Isoforms: 2 , currently showing only the 'canonical' sequence.
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Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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