5ZQP

Tankyrase-2 in complex with compound 12


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.99 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.173 
  • R-Value Observed: 0.174 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Discovery of Novel Spiroindoline Derivatives as Selective Tankyrase Inhibitors.

Shirai, F.Tsumura, T.Yashiroda, Y.Yuki, H.Niwa, H.Sato, S.Chikada, T.Koda, Y.Washizuka, K.Yoshimoto, N.Abe, M.Onuki, T.Mazaki, Y.Hirama, C.Fukami, T.Watanabe, H.Honma, T.Umehara, T.Shirouzu, M.Okue, M.Kano, Y.Watanabe, T.Kitamura, K.Shitara, E.Muramatsu, Y.Yoshida, H.Mizutani, A.Seimiya, H.Yoshida, M.Koyama, H.

(2019) J Med Chem 62: 3407-3427

  • DOI: 10.1021/acs.jmedchem.8b01888
  • Primary Citation of Related Structures:  
    6A84, 5ZQO, 5ZQQ, 5ZQP, 5ZQR

  • PubMed Abstract: 
  • The canonical WNT pathway plays an important role in cancer pathogenesis. Inhibition of poly(ADP-ribose) polymerase catalytic activity of the tankyrases (TNKS/TNKS2) has been reported to reduce the Wnt/β-catenin signal by preventing poly ADP-ribosylation-dependent degradation of AXIN, a negative regulator of Wnt/β-catenin signaling ...

    The canonical WNT pathway plays an important role in cancer pathogenesis. Inhibition of poly(ADP-ribose) polymerase catalytic activity of the tankyrases (TNKS/TNKS2) has been reported to reduce the Wnt/β-catenin signal by preventing poly ADP-ribosylation-dependent degradation of AXIN, a negative regulator of Wnt/β-catenin signaling. With the goal of investigating the effects of tankyrase and Wnt pathway inhibition on tumor growth, we set out to find small-molecule inhibitors of TNKS/TNKS2 with suitable drug-like properties. Starting from 1a, a high-throughput screening hit, the spiroindoline derivative 40c (RK-287107) was discovered as a potent TNKS/TNKS2 inhibitor with >7000-fold selectivity against the PARP1 enzyme, which inhibits WNT-responsive TCF reporter activity and proliferation of human colorectal cancer cell line COLO-320DM. RK-287107 also demonstrated dose-dependent tumor growth inhibition in a mouse xenograft model. These observations suggest that RK-287107 is a promising lead compound for the development of novel tankyrase inhibitors as anticancer agents.


    Organizational Affiliation

    Department of Biotechnology , The University of Tokyo , 1-1-1 Yayoi , Bunkyo-ku, Tokyo 113-8657 , Japan.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tankyrase-2A168Homo sapiensMutation(s): 0 
Gene Names: TNKS2PARP5BTANK2TNKL
EC: 2.4.2.30 (PDB Primary Data), 2.4.2 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H2K2 (Homo sapiens)
Explore Q9H2K2 
Go to UniProtKB:  Q9H2K2
PHAROS:  Q9H2K2
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Tankyrase-2B48Homo sapiensMutation(s): 0 
Gene Names: TNKS2PARP5BTANK2TNKL
EC: 2.4.2.30 (PDB Primary Data), 2.4.2 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H2K2 (Homo sapiens)
Explore Q9H2K2 
Go to UniProtKB:  Q9H2K2
PHAROS:  Q9H2K2
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
9H3
Query on 9H3

Download Ideal Coordinates CCD File 
D [auth A]1'-(4-oxo-3,4,5,6,7,8-hexahydroquinazolin-2-yl)-2H-spiro[1-benzofuran-3,4'-piperidin]-2-one
C20 H21 N3 O3
XGTNOTWEBRRAKO-UHFFFAOYSA-N
 Ligand Interaction
PO4
Query on PO4

Download Ideal Coordinates CCD File 
E [auth A]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
F [auth A], G [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
C [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
9H3IC50:  18.299999237060547   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.99 Å
  • R-Value Free: 0.205 
  • R-Value Work: 0.173 
  • R-Value Observed: 0.174 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.405α = 90
b = 67.405β = 90
c = 115.092γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-04-03
    Type: Initial release
  • Version 1.1: 2019-04-24
    Changes: Data collection, Database references