5EH0

Rapid Discovery of Pyrido[3,4-d]pyrimidine Inhibitors of Monopolar Spindle kinase 1 (MPS1) Using a Structure-Based Hydridization Approach


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.18 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Rapid Discovery of Pyrido[3,4-d]pyrimidine Inhibitors of Monopolar Spindle Kinase 1 (MPS1) Using a Structure-Based Hybridization Approach.

Innocenti, P.Woodward, H.L.Solanki, S.Naud, S.Westwood, I.M.Cronin, N.Hayes, A.Roberts, J.Henley, A.T.Baker, R.Faisal, A.Mak, G.W.Box, G.Valenti, M.De Haven Brandon, A.O'Fee, L.Saville, H.Schmitt, J.Matijssen, B.Burke, R.van Montfort, R.L.Raynaud, F.I.Eccles, S.A.Linardopoulos, S.Blagg, J.Hoelder, S.

(2016) J.Med.Chem. 59: 3671-3688

  • DOI: 10.1021/acs.jmedchem.5b01811
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Monopolar spindle 1 (MPS1) plays a central role in the transition of cells from metaphase to anaphase and is one of the main components of the spindle assembly checkpoint. Chromosomally unstable cancer cells rely heavily on MPS1 to cope with the stre ...

    Monopolar spindle 1 (MPS1) plays a central role in the transition of cells from metaphase to anaphase and is one of the main components of the spindle assembly checkpoint. Chromosomally unstable cancer cells rely heavily on MPS1 to cope with the stress arising from abnormal numbers of chromosomes and centrosomes and are thus more sensitive to MPS1 inhibition than normal cells. We report the discovery and optimization of a series of new pyrido[3,4-d]pyrimidine based inhibitors via a structure-based hybridization approach from our previously reported inhibitor CCT251455 and a modestly potent screening hit. Compounds in this novel series display excellent potency and selectivity for MPS1, which translates into biomarker modulation in an in vivo human tumor xenograft model.


    Organizational Affiliation

    Cancer Research UK Cancer Therapeutics Unit, Division of Cancer Therapeutics, The Institute of Cancer Research , 15 Cotswold Road, Sutton, London, SM2 5NG, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Dual specificity protein kinase TTK
A
279Homo sapiensMutation(s): 0 
Gene Names: TTK (MPS1, MPS1L1)
EC: 2.7.12.1
Find proteins for P33981 (Homo sapiens)
Go to Gene View: TTK
Go to UniProtKB:  P33981
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DMS
Query on DMS

Download SDF File 
Download CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
5NW
Query on 5NW

Download SDF File 
Download CCD File 
A
N2-(2-Methoxy-4-(1-methyl-1H-pyrazol-4-yl)phenyl)-N8-neopentylpyrido[3,4-d]pyrimidine-2,8-diamine
C23 H27 N7 O
WSTCEYSBWKYEDE-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
5NWKi: 0.5 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.18 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.196 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 70.420α = 90.00
b = 105.920β = 90.00
c = 112.210γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
BUSTER-TNTrefinement
Aimlessdata scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Cancer Research UKUnited Kingdom--

Revision History 

  • Version 1.0: 2016-04-20
    Type: Initial release
  • Version 1.1: 2016-05-11
    Type: Database references
  • Version 1.2: 2017-08-30
    Type: Author supporting evidence
  • Version 2.0: 2019-04-24
    Type: Advisory, Atomic model, Data collection, Database references, Derived calculations, Polymer sequence, Source and taxonomy, Structure summary