3C4H

Human poly(ADP-ribose) polymerase 3, catalytic fragment in complex with an inhibitor DR2313


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.174 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural basis for inhibitor specificity in human poly(ADP-ribose) polymerase-3.

Lehtio, L.Jemth, A.S.Collins, R.Loseva, O.Johansson, A.Markova, N.Hammarstrom, M.Flores, A.Holmberg-Schiavone, L.Weigelt, J.Helleday, T.Schuler, H.Karlberg, T.

(2009) J.Med.Chem. 52: 3108-3111

  • DOI: 10.1021/jm900052j
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Poly(ADP-ribose) polymerases (PARPs) activate DNA repair mechanisms upon stress- and cytotoxin-induced DNA damage, and inhibition of PARP activity is a lead in cancer drug therapy. We present a structural and functional analysis of the PARP domain of ...

    Poly(ADP-ribose) polymerases (PARPs) activate DNA repair mechanisms upon stress- and cytotoxin-induced DNA damage, and inhibition of PARP activity is a lead in cancer drug therapy. We present a structural and functional analysis of the PARP domain of human PARP-3 in complex with several inhibitors. Of these, KU0058948 is the strongest inhibitor of PARP-3 activity. The presented crystal structures highlight key features for potent inhibitor binding and suggest routes for creating isoenzyme-specific PARP inhibitors.


    Organizational Affiliation

    Structural Genomics Consortium, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-17177 Stockholm, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Poly(ADP-ribose) polymerase 3
A
357Homo sapiensMutation(s): 0 
Gene Names: PARP3 (ADPRT3, ADPRTL3)
EC: 2.4.2.30
Find proteins for Q9Y6F1 (Homo sapiens)
Go to Gene View: PARP3
Go to UniProtKB:  Q9Y6F1
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DRL
Query on DRL

Download SDF File 
Download CCD File 
A
2-methyl-3,5,7,8-tetrahydro-4H-thiopyrano[4,3-d]pyrimidin-4-one
C8 H10 N2 O S
HRYKZAKEAVZGJD-UHFFFAOYSA-N
 Ligand Interaction
DMS
Query on DMS

Download SDF File 
Download CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
DRLKd: 2000 nM (100) BINDINGDB
DRLKd: 2000 nM BINDINGMOAD
DRLKd: 2000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.174 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 54.910α = 90.00
b = 57.330β = 112.36
c = 56.260γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
MxCuBEdata collection
XSCALEdata scaling
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2008-02-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance