4CV8

MPS1 kinase with 3-aminopyridin-2-one inhibitors

• PDB DOI: https://doi.org/10.2210/pdb4CV8/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2014-03-24 Released: 2015-04-08 
• Deposition Author(s): Fearon, D., Bavetsias, V., Bayliss, R., Schmitt, J., Westwood, I.M., vanMontfort, R.L.M., Jones, K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.226 
• R-Value Work: 0.180 
• R-Value Observed: 0.182 

Starting Model: experimental

Literature

Protein Kinase Selectivity of a 3-Aminopyridin-2- One Based Fragment Library, Identification of 3-Amino-5-(Pyridin-4-Yl)Pyridin-2(1H)-One as a Novel Scaffold for Mps1 Inhibition

Fearon, D., Bavetsias, V., Bayliss, R., Schmitt, J., Westwood, I.M., Van Montfort, R.L.M., Jones, K.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 36.55 kDa 
• Atom Count: 1,944 
• Modelled Residue Count: 255 
• Deposited Residue Count: 313 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DUAL SPECIFICITY PROTEIN KINASE TTK	A	313	Homo sapiens	Mutation(s): 0  EC: 2.7.12.1
UniProt & NIH Common Fund Data Resources
Find proteins for P33981 (Homo sapiens) Explore P33981  Go to UniProtKB:  P33981
PHAROS:  P33981 GTEx:  ENSG00000112742

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
3D7	B [auth A]	3-amino-5-(1-methyl-1H-pyrazol-4-yl)pyridin-2(1H)-one C9 H10 N4 O ZGGRJKLRPVNTDT-UHFFFAOYSA-N
EDO	C [auth A], D [auth A], E [auth A], F [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
3D7	BindingDB:  4CV8	Ki: 9.47e+4 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.226 
• R-Value Work: 0.180 
• R-Value Observed: 0.182 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.8	α = 90
b = 110.3	β = 90
c = 114.2	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-04-08 
Deposition Author(s): Fearon, D., Bavetsias, V., Bayliss, R., Schmitt, J., Westwood, I.M., vanMontfort, R.L.M., Jones, K.

Revision History  

• Version 1.0: 2015-04-08
  Type: Initial release
  
• Version 1.1: 2019-05-08
  Changes: Data collection, Experimental preparation, Other
• Version 1.2: 2023-12-20
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description