1Q67

Crystal structure of Dcp1p


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.227 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of Dcp1p and its functional implications in mRNA decapping

She, M.Decker, C.J.Sundramurthy, K.Liu, Y.Chen, N.Parker, R.Song, H.

(2004) Nat.Struct.Mol.Biol. 11: 249-256

  • DOI: 10.1038/nsmb730

  • PubMed Abstract: 
  • A major pathway of eukaryotic mRNA turnover begins with deadenylation, followed by decapping and 5'-->3' exonucleolytic degradation. A critical step in this pathway is decapping, which is carried out by an enzyme composed of Dcp1p and Dcp2p. The crys ...

    A major pathway of eukaryotic mRNA turnover begins with deadenylation, followed by decapping and 5'-->3' exonucleolytic degradation. A critical step in this pathway is decapping, which is carried out by an enzyme composed of Dcp1p and Dcp2p. The crystal structure of Dcp1p shows that it markedly resembles the EVH1 family of protein domains. Comparison of the proline-rich sequence (PRS)-binding sites in this family of proteins with Dcp1p indicates that it belongs to a novel class of EVH1 domains. Mapping of the sequence conservation on the molecular surface of Dcp1p reveals two prominent sites. One of these is required for the function of the Dcp1p-Dcp2p complex, and the other, corresponding to the PRS-binding site of EVH1 domains, is probably a binding site for decapping regulatory proteins. Moreover, a conserved hydrophobic patch is shown to be critical for decapping.


    Related Citations: 
    • An essential component of the decapping enzyme required for normal rates of mRNA turnover
      Beelman, C.A.,Stevens, A.,Caponigro, G.,LaGrandeur, T.E.,Hatfield, L.,Fortner, D.M.,Parker, R.
      (1996) Nature 382: 642


    Organizational Affiliation

    Laboratory of Macromolecular Structure, Institute of Molecular and Cell Biology, 30 Medical Drive, Singapore 117609.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Decapping protein involved in mRNA degradation-Dcp1p
A, B
231Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: DCP1
Find proteins for Q12517 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12517
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.227 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 123.550α = 90.00
b = 123.550β = 90.00
c = 77.900γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSrefinement
SCALEPACKdata scaling
SHARPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-03-02
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance