2ZMD

Crystal structure of human Mps1 catalytic domain T686A mutant in complex with SP600125 inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.88 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.221 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of the catalytic domain of the mitotic checkpoint kinase Mps1 in complex with SP600125.

Chu, M.L.Chavas, L.M.Douglas, K.T.Eyers, P.A.Tabernero, L.

(2008) J.Biol.Chem. 283: 21495-21500

  • DOI: 10.1074/jbc.M803026200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Chromosomal instability can result from defective control of checkpoints and is associated with malignant cell growth. Monopolar spindle 1 (Mps1) is a dual-specificity protein kinase that has important roles in the prevention of aneuploidy during the ...

    Chromosomal instability can result from defective control of checkpoints and is associated with malignant cell growth. Monopolar spindle 1 (Mps1) is a dual-specificity protein kinase that has important roles in the prevention of aneuploidy during the cell cycle and might therefore be a potential target for new therapeutic agents in the treatment of cancer. To gain insights into the molecular mechanism of Mps1 inhibition by small molecules, we determined the x-ray structure of Mps1, both alone and in complex with the ATP-competitive inhibitor SP600125. Mps1 adopts a classic protein kinase fold, with the inhibitor sitting in the ATP-binding site where it is stabilized by hydrophobic interactions. We identified a secondary pocket, not utilized by SP600125, which might be exploited for the rational design of specific Mps1 inhibitors. These structures provide important insights into the interaction of this protein kinase with small molecules and suggest potential mechanisms for Mps1 regulation.


    Organizational Affiliation

    School of Pharmacy and Pharmaceutical Sciences, Stopford Building, University of Manchester, Manchester, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Dual specificity protein kinase TTK
A
390Homo sapiensMutation(s): 1 
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
537
Query on 537

Download SDF File 
Download CCD File 
A
2,6-DIHYDROANTHRA/1,9-CD/PYRAZOL-6-ONE
C14 H8 N2 O
ACPOUJIDANTYHO-UHFFFAOYSA-N
 Ligand Interaction
7PE
Query on 7PE

Download SDF File 
Download CCD File 
A
2-(2-(2-(2-(2-(2-ETHOXYETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHANOL
POLYETHYLENE GLYCOL FRAGMENT
C14 H30 O7
UKXKPKBTMYNOFS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
537Kd: 98 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.88 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.221 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 70.600α = 90.00
b = 105.170β = 90.00
c = 111.970γ = 90.00
Software Package:
Software NamePurpose
CrystalCleardata collection
SCALAdata scaling
REFMACrefinement
MOSFLMdata reduction
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-05-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance