5O2D

PARP14 Macrodomain 2 with inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.174 
  • R-Value Work: 0.130 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Discovery of a Selective Allosteric Inhibitor Targeting Macrodomain 2 of Polyadenosine-Diphosphate-Ribose Polymerase 14.

Schuller, M.Riedel, K.Gibbs-Seymour, I.Uth, K.Sieg, C.Gehring, A.P.Ahel, I.Bracher, F.Kessler, B.M.Elkins, J.M.Knapp, S.

(2017) ACS Chem. Biol. 12: 2866-2874

  • DOI: 10.1021/acschembio.7b00445

  • PubMed Abstract: 
  • Macrodomains are conserved protein interaction modules that can be found in all domains of life including in certain viruses. Macrodomains mediate recognition of sequence motifs harboring adenosine diphosphate ribose (ADPR) modifications, thereby reg ...

    Macrodomains are conserved protein interaction modules that can be found in all domains of life including in certain viruses. Macrodomains mediate recognition of sequence motifs harboring adenosine diphosphate ribose (ADPR) modifications, thereby regulating a variety of cellular processes. Due to their role in cancer or viral pathogenesis, macrodomains have emerged as potential therapeutic targets, but the unavailability of small molecule inhibitors has hampered target validation studies so far. Here, we describe an efficient screening strategy for identification of small molecule inhibitors that displace ADPR from macrodomains. We report the discovery and characterization of a macrodomain inhibitor, GeA-69, selectively targeting macrodomain 2 (MD2) of PARP14 with low micromolar affinity. Co-crystallization of a GeA-69 analogue with PARP14 MD2 revealed an allosteric binding mechanism explaining its selectivity over other human macrodomains. We show that GeA-69 engages PARP14 MD2 in intact cells and prevents its localization to sites of DNA damage.


    Organizational Affiliation

    Structural Genomics Consortium (SGC), Nuffield Department of Clinical Medicine, University of Oxford , Oxford, OX3 7DQ, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Poly [ADP-ribose] polymerase 14
A
200Homo sapiensMutation(s): 4 
Gene Names: PARP14 (BAL2, KIAA1268)
EC: 2.4.2.-
Find proteins for Q460N5 (Homo sapiens)
Go to Gene View: PARP14
Go to UniProtKB:  Q460N5
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
9HH
Query on 9HH

Download SDF File 
Download CCD File 
A
~{N}-[2-(9~{H}-carbazol-1-yl)phenyl]methanesulfonamide
C19 H16 N2 O2 S
FKXDARRJLQDNOV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.174 
  • R-Value Work: 0.130 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 131.408α = 90.00
b = 35.740β = 94.83
c = 37.150γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
PHASERphasing
Aimlessdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-11-08
    Type: Initial release
  • Version 1.1: 2017-11-29
    Type: Database references
  • Version 1.2: 2018-02-21
    Type: Structure summary
  • Version 1.3: 2018-09-19
    Type: Data collection, Database references