4NKS

Crystal structure of human fibroblast growth factor receptor 1 kinase domain in complex with pyrazolaminopyrimidine 3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

FGFR1 Kinase Inhibitors: Close Regioisomers Adopt Divergent Binding Modes and Display Distinct Biophysical Signatures.

Klein, T.Tucker, J.Holdgate, G.A.Norman, R.A.Breeze, A.L.

(2014) ACS Med Chem Lett 5: 166-171

  • DOI: 10.1021/ml4004205
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The binding of a ligand to its target protein is often accompanied by conformational changes of both the protein and the ligand. This is of particular interest, since structural rearrangements of the macromolecular target and the ligand influence the ...

    The binding of a ligand to its target protein is often accompanied by conformational changes of both the protein and the ligand. This is of particular interest, since structural rearrangements of the macromolecular target and the ligand influence the free energy change upon complex formation. In this study, we use X-ray crystallography, isothermal titration calorimetry, and surface-plasmon resonance biosensor analysis to investigate the binding of pyrazolylaminopyrimidine inhibitors to FGFR1 tyrosine kinase, an important anticancer target. Our results highlight that structurally close analogs of this inhibitor series interact with FGFR1 with different binding modes, which are a consequence of conformational changes in both the protein and the ligand as well as the bound water network. Together with the collected kinetic and thermodynamic data, we use the protein-ligand crystal structure information to rationalize the observed inhibitory potencies on a molecular level.


    Organizational Affiliation

    Discovery Sciences, AstraZeneca R&D , Alderley Park, Macclesfield, Cheshire, SK10 4TG, U.K.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fibroblast growth factor receptor 1
A, B
309Homo sapiensMutation(s): 2 
Gene Names: FGFR1 (BFGFR, CEK, FGFBR, FLG, FLT2, HBGFR)
EC: 2.7.10.1
Find proteins for P11362 (Homo sapiens)
Go to Gene View: FGFR1
Go to UniProtKB:  P11362
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2M2
Query on 2M2

Download SDF File 
Download CCD File 
A, B
N~2~-[(3-methyl-1,2-oxazol-5-yl)methyl]-N~4~-[5-(2-phenylethyl)-1H-pyrazol-3-yl]pyrimidine-2,4-diamine
C20 H21 N7 O
ZWCOUICPAQBKJI-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
2M2Kd: 69.1 nM BINDINGMOAD
2M2Kd: 67.9 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.220 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 208.058α = 90.00
b = 56.918β = 107.73
c = 66.242γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
REFMACrefinement
SCALAdata scaling
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-12-18
    Type: Initial release
  • Version 1.1: 2014-07-16
    Type: Database references