7OCV

Human TNKS1 in complex with 3-[4-(1-Hydroxy-1-methyl-ethyl)-phenyl]-6-methyl-2H-pyrrolo[1,2-a]pyrazin-1-one


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.43 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.187 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Optimization of a Screening Hit toward M2912, an Oral Tankyrase Inhibitor with Antitumor Activity in Colorectal Cancer Models.

Buchstaller, H.P.Anlauf, U.Dorsch, D.Kogler, S.Kuhn, D.Lehmann, M.Leuthner, B.Lodholz, S.Musil, D.Radtki, D.Rettig, C.Ritzert, C.Rohdich, F.Schneider, R.Wegener, A.Weigt, S.Wilkinson, K.Esdar, C.

(2021) J Med Chem 64: 10371-10392

  • DOI: https://doi.org/10.1021/acs.jmedchem.1c00800
  • Primary Citation of Related Structures:  
    7OCV

  • PubMed Abstract: 

    Constitutive activation of the canonical Wnt signaling pathway, in most cases driven by inactivation of the tumor suppressor APC, is a hallmark of colorectal cancer. Tankyrases are druggable key regulators in these malignancies and are considered as attractive targets for therapeutic interventions, although no inhibitor has been progressed to clinical development yet. We continued our efforts to develop tankyrase inhibitors targeting the nicotinamide pocket with suitable drug-like properties for investigating effects of Wnt pathway inhibition on tumor growth. Herein, the identification of a screening hit series and its optimization through scaffold hopping and SAR exploration is described. The systematic assessment delivered M2912 , a compound with an optimal balance between excellent TNKS potency, exquisite PARP selectivity, and a predicted human PK compatible with once daily oral dosing. Modulation of cellular Wnt pathway activity and significant tumor growth inhibition was demonstrated with this compound in colorectal xenograft models in vivo .


  • Organizational Affiliation

    Merck KGaA, Global Research & Development, Frankfurter Strasse 250, 64293 Darmstadt, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Poly [ADP-ribose] polymerase211Homo sapiensMutation(s): 0 
Gene Names: TNKS
EC: 2.4.2
UniProt & NIH Common Fund Data Resources
Find proteins for O95271 (Homo sapiens)
Explore O95271 
Go to UniProtKB:  O95271
PHAROS:  O95271
GTEx:  ENSG00000173273 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO95271
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
CME
Query on CME
A
L-PEPTIDE LINKINGC5 H11 N O3 S2CYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.43 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.187 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.737α = 90
b = 94.976β = 90
c = 62.228γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
autoPROCdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-07-28
    Type: Initial release
  • Version 1.1: 2021-08-04
    Changes: Database references
  • Version 1.2: 2024-01-31
    Changes: Data collection, Database references, Refinement description