2XKC

Structure of Nek2 bound to aminopyrazine compound 14


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Aminopyrazine Inhibitors Binding to an Unusual Inactive Conformation of the Mitotic Kinase Nek2: Sar and Structural Characterization.

Whelligan, D.K.Solanki, S.Taylor, D.Thomson, D.W.Cheung, K.M.Boxall, K.Mas-Droux, C.Barillari, C.Burns, S.Grummitt, C.G.Collins, I.Van Montfort, R.L.Aherne, G.W.Bayliss, R.Hoelder, S.

(2010) J Med Chem 53: 7682

  • DOI: 10.1021/jm1008727
  • Primary Citation of Related Structures:  
    2XKC, 2XKD, 2XK6, 2XK7, 2XK8, 2XK3, 2XK4, 2XKE, 2XKF

  • PubMed Abstract: 
  • We report herein the first systematic exploration of inhibitors of the mitotic kinase Nek2. Starting from HTS hit aminopyrazine 2, compounds with improved activity were identified using structure-based design. Our structural biology investigations re ...

    We report herein the first systematic exploration of inhibitors of the mitotic kinase Nek2. Starting from HTS hit aminopyrazine 2, compounds with improved activity were identified using structure-based design. Our structural biology investigations reveal two notable observations. First, 2 and related compounds bind to an unusual, inactive conformation of the kinase which to the best of our knowledge has not been reported for other types of kinase inhibitors. Second, a phenylalanine residue at the center of the ATP pocket strongly affects the ability of the inhibitor to bind to the protein. The implications of these observations are discussed, and the work described here defines key features for potent and selective Nek2 inhibition, which will aid the identification of more advanced inhibitors of Nek2.


    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SERINE/THREONINE-PROTEIN KINASE NEK2A279Homo sapiensMutation(s): 0 
Gene Names: NEK2NEK2ANLK1
EC: 2.7.11.1
Find proteins for P51955 (Homo sapiens)
Explore P51955 
Go to UniProtKB:  P51955
NIH Common Fund Data Resources
PHAROS  P51955
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
4VQ
Query on 4VQ

Download CCD File 
A
4-[3-amino-6-(3,4,5-trimethoxyphenyl)pyrazin-2-yl]-2-methylbenzoic acid
C21 H21 N3 O5
AOAAZBKGFGSOFM-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
4VQIC50:  2600   nM  BindingDB
4VQIC50:  1200   nM  BindingDB
4VQIC50:  2300   nM  BindingDB
4VQIC50 :  2600   nM  PDBBind
4VQIC50:  2600   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.11α = 90
b = 56.55β = 127.96
c = 73.61γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-27
    Type: Initial release
  • Version 1.1: 2011-05-19
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance