6FZM

Human PARP14 (ARTD8), catalytic fragment in complex with inhibitor ITK6


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.67 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.237 

wwPDB Validation 3D Report Full Report



Literature

A Potent and Selective PARP11 Inhibitor Suggests Coupling between Cellular Localization and Catalytic Activity.

Kirby, I.T.Kojic, A.Arnold, M.R.Thorsell, A.G.Karlberg, T.Vermehren-Schmaedick, A.Sreenivasan, R.Schultz, C.Schuler, H.Cohen, M.S.

(2018) Cell Chem Biol 25: 1547-1553.e12

  • DOI: 10.1016/j.chembiol.2018.09.011
  • Primary Citation of Related Structures:  
    6FYM, 6FZM

  • PubMed Abstract: 
  • Poly-ADP-ribose polymerases (PARPs1-16) play pivotal roles in diverse cellular processes. PARPs that catalyze poly-ADP-ribosylation (PARylation) are the best characterized PARP family members because of the availability of potent and selective inhibitors for these PARPs ...

    Poly-ADP-ribose polymerases (PARPs1-16) play pivotal roles in diverse cellular processes. PARPs that catalyze poly-ADP-ribosylation (PARylation) are the best characterized PARP family members because of the availability of potent and selective inhibitors for these PARPs. There has been comparatively little success in developing selective small-molecule inhibitors of PARPs that catalyze mono-ADP-ribosylation (MARylation), limiting our understanding of the cellular role of MARylation. Here we describe the structure-guided design of inhibitors of PARPs that catalyze MARylation. The most selective analog, ITK7, potently inhibits the MARylation activity of PARP11, a nuclear envelope-localized PARP. ITK7 is greater than 200-fold selective over other PARP family members. Using live-cell imaging, we show that ITK7 causes PARP11 to dissociate from the nuclear envelope. These results suggest that the cellular localization of PARP11 is regulated by its catalytic activity.


    Organizational Affiliation

    Program in Chemical Biology, Oregon Health & Science University, Portland, OR 97210, USA; Department of Physiology and Pharmacology, Oregon Health & Science University, Portland, OR 97210, United States. Electronic address: cohenmic@ohsu.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Poly [ADP-ribose] polymerase 14AB193Homo sapiensMutation(s): 0 
Gene Names: PARP14BAL2KIAA1268
EC: 2.4.2.30 (PDB Primary Data), 2.4.2 (UniProt)
Find proteins for Q460N5 (Homo sapiens)
Explore Q460N5 
Go to UniProtKB:  Q460N5
NIH Common Fund Data Resources
PHAROS  Q460N5
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EE5
Query on EE5

Download CCD File 
A, B
4-[(8-methyl-4-oxidanylidene-7-prop-1-ynyl-3~{H}-quinazolin-2-yl)methylsulfanyl]benzoic acid
C20 H16 N2 O3 S
RMIJZTKTCJJVSA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.67 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.237 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.885α = 90
b = 83.885β = 90
c = 204.914γ = 120
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-02-20
    Type: Initial release