4GV4

Human ARTD3 (PARP3) - Catalytic domain in complex with inhibitor ME0328


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.162 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

PARP Inhibitor with Selectivity Toward ADP-Ribosyltransferase ARTD3/PARP3

Lindgren, A.E.G.Karlberg, T.Thorsell, A.G.Hesse, M.Spjut, S.Ekblad, T.Andersson, C.D.Pinto, A.F.Weigelt, J.Hottiger, M.O.Linusson, A.Elofsson, M.Schuler, H.

(2013) Acs Chem.Biol. 8: 1698-1703

  • DOI: 10.1021/cb4002014
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Inhibiting ADP-ribosyl transferases with PARP-inhibitors is considered a promising strategy for the treatment of many cancers and ischemia, but most of the cellular targets are poorly characterized. Here, we describe an inhibitor of ADP-ribosyltransf ...

    Inhibiting ADP-ribosyl transferases with PARP-inhibitors is considered a promising strategy for the treatment of many cancers and ischemia, but most of the cellular targets are poorly characterized. Here, we describe an inhibitor of ADP-ribosyltransferase-3/poly(ADP-ribose) polymerase-3 (ARTD3), a regulator of DNA repair and mitotic progression. In vitro profiling against 12 members of the enzyme family suggests selectivity for ARTD3, and crystal structures illustrate the molecular basis for inhibitor selectivity. The compound is active in cells, where it elicits ARTD3-specific effects at submicromolar concentration. Our results show that by targeting the nicotinamide binding site, selective inhibition can be achieved among the closest relatives of the validated clinical target, ADP-ribosyltransferase-1/poly(ADP-ribose) polymerase-1.


    Organizational Affiliation

    Department of Chemistry, Umeå University, Umeå, 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
MEJ
Query on MEJ

Download SDF File 
Download CCD File 
A
3-(4-oxo-3,4-dihydroquinazolin-2-yl)-N-[(1S)-1-phenylethyl]propanamide
C19 H19 N3 O2
QIHBWVVVRYYYRO-ZDUSSCGKSA-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 %)
MEJIC50: 890 - 900 nM (100) BINDINGDB
MEJIC50: 890 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.162 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 54.664α = 90.00
b = 56.742β = 112.74
c = 56.977γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
MxCuBEdata collection
MOLREPphasing
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-06-19
    Type: Initial release
  • Version 1.1: 2013-10-16
    Type: Database references