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 
  • R-Value Observed: 0.198 

wwPDB Validation   3D Report Full Report


This is version 2.1 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:  
    5EH0, 5EI2, 5EI6, 5EI8, 5EHY

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Dual specificity protein kinase TTKA279Homo sapiensMutation(s): 0 
Gene Names: TTKMPS1MPS1L1
EC: 2.7.12.1
Find proteins for P33981 (Homo sapiens)
Explore P33981 
Go to UniProtKB:  P33981
NIH Common Fund Data Resources
PHAROS  P33981
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
5NW
Query on 5NW

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
DMS
Query on DMS

Download CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
5NWIC50:  18   nM  BindingDB
5NWIC50:  8   nM  BindingDB
5NWIC50:  140   nM  BindingDB
5NWKi:  0.4399999976158142   nM  BindingDB
5NWKi:  0.5   nM  BindingDB
5NWIC50:  44   nM  BindingDB
5NWIC50:  45   nM  BindingDB
5NWKi:  0.5   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.18 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.42α = 90
b = 105.92β = 90
c = 112.21γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
PHASERphasing
BUSTER-TNTrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report



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
    Changes: Database references
  • Version 1.2: 2017-08-30
    Changes: Author supporting evidence
  • Version 2.0: 2019-04-24
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Polymer sequence, Source and taxonomy, Structure summary
  • Version 2.1: 2019-07-10
    Changes: Data collection