5ECE

Tankyrase 1 with Phthalazinone 1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Discovery of AZ0108, an orally bioavailable phthalazinone PARP inhibitor that blocks centrosome clustering.

Johannes, J.W.Almeida, L.Daly, K.Ferguson, A.D.Grosskurth, S.E.Guan, H.Howard, T.Ioannidis, S.Kazmirski, S.Lamb, M.L.Larsen, N.A.Lyne, P.D.Mikule, K.Ogoe, C.Peng, B.Petteruti, P.Read, J.A.Su, N.Sylvester, M.Throner, S.Wang, W.Wang, X.Wu, J.Ye, Q.Yu, Y.Zheng, X.Scott, D.A.

(2015) Bioorg.Med.Chem.Lett. 25: 5743-5747

  • DOI: 10.1016/j.bmcl.2015.10.079
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The propensity for cancer cells to accumulate additional centrosomes relative to normal cells could be exploited for therapeutic benefit in oncology. Following literature reports that suggested TNKS1 (tankyrase 1) and PARP16 may be involved with spin ...

    The propensity for cancer cells to accumulate additional centrosomes relative to normal cells could be exploited for therapeutic benefit in oncology. Following literature reports that suggested TNKS1 (tankyrase 1) and PARP16 may be involved with spindle structure and function and may play a role in suppressing multi-polar spindle formation in cells with supernumerary centrosomes, we initiated a phenotypic screen to look for small molecule poly (ADP-ribose) polymerase (PARP) enzyme family inhibitors that could produce a multi-polar spindle phenotype via declustering of centrosomes. Screening of AstraZeneca's collection of phthalazinone PARP inhibitors in HeLa cells using high-content screening techniques identified several compounds that produced a multi-polar spindle phenotype at low nanomolar concentrations. Characterization of these compounds across a broad panel of PARP family enzyme assays indicated that they had activity against several PARP family enzymes, including PARP1, 2, 3, 5a, 5b, and 6. Further optimization of these initial hits for improved declustering potency, solubility, permeability, and oral bioavailability resulted in AZ0108, a PARP1, 2, 6 inhibitor that potently inhibits centrosome clustering and is suitable for in vivo efficacy and tolerability studies.


    Organizational Affiliation

    AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, MA 02451, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tankyrase-1
A, B, C, D
213Homo sapiensMutation(s): 0 
Gene Names: TNKS (PARP5A, PARPL, TIN1, TINF1, TNKS1)
EC: 2.4.2.30
Find proteins for O95271 (Homo sapiens)
Go to Gene View: TNKS
Go to UniProtKB:  O95271
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

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Download CCD File 
C
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
EDO
Query on EDO

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Download CCD File 
A, B, C, D
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
5N2
Query on 5N2

Download SDF File 
Download CCD File 
A, B, C
2-[4-[3-[(4-oxidanylidene-3~{H}-phthalazin-1-yl)methyl]phenyl]carbonylpiperazin-1-yl]pyridine-3-carbonitrile
C26 H22 N6 O2
ZDDPBFWHZOJFHF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.181 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 54.970α = 86.21
b = 59.980β = 78.89
c = 77.190γ = 89.06
Software Package:
Software NamePurpose
BUSTER-TNTrefinement
PDB_EXTRACTdata extraction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-11-25
    Type: Initial release