5LW6

Crystal structure of a Se-Met substituted Dictyostelium discoideum ADP-ribose binding macrodomain (residues 342-563) of DDB_G0293866


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.170 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The role of ADP-ribosylation in regulating DNA interstrand crosslink repair.

Gunn, A.R.Banos-Pinero, B.Paschke, P.Sanchez-Pulido, L.Ariza, A.Day, J.Emrich, M.Leys, D.Ponting, C.P.Ahel, I.Lakin, N.D.

(2016) J.Cell.Sci. 129: 3845-3858

  • DOI: 10.1242/jcs.193375
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • ADP-ribosylation by ADP-ribosyltransferases (ARTs) has a well-established role in DNA strand break repair by promoting enrichment of repair factors at damage sites through ADP-ribose interaction domains. Here, we exploit the simple eukaryote Dictyost ...

    ADP-ribosylation by ADP-ribosyltransferases (ARTs) has a well-established role in DNA strand break repair by promoting enrichment of repair factors at damage sites through ADP-ribose interaction domains. Here, we exploit the simple eukaryote Dictyostelium to uncover a role for ADP-ribosylation in regulating DNA interstrand crosslink repair and redundancy of this pathway with non-homologous end-joining (NHEJ). In silico searches were used to identify a protein that contains a permutated macrodomain (which we call aprataxin/APLF-and-PNKP-like protein; APL). Structural analysis reveals that this permutated macrodomain retains features associated with ADP-ribose interactions and that APL is capable of binding poly(ADP-ribose) through this macrodomain. APL is enriched in chromatin in response to cisplatin treatment, an agent that induces DNA interstrand crosslinks (ICLs). This is dependent on the macrodomain of APL and the ART Adprt2, indicating a role for ADP-ribosylation in the cellular response to cisplatin. Although adprt2- cells are sensitive to cisplatin, ADP-ribosylation is evident in these cells owing to redundant signalling by the double-strand break (DSB)-responsive ART Adprt1a, promoting NHEJ-mediated repair. These data implicate ADP-ribosylation in DNA ICL repair and identify that NHEJ can function to resolve this form of DNA damage in the absence of Adprt2.


    Organizational Affiliation

    Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DDB_G0293866
A
255Dictyostelium discoideumMutation(s): 0 
Find proteins for Q54B72 (Dictyostelium discoideum)
Go to UniProtKB:  Q54B72
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.170 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 39.590α = 90.00
b = 71.220β = 90.00
c = 81.890γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata scaling
MLPHAREphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-09-28
    Type: Initial release
  • Version 1.1: 2016-10-26
    Type: Database references