3B2T

Structure of phosphotransferase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for reduced FGFR2 activity in LADD syndrome: Implications for FGFR autoinhibition and activation.

Lew, E.D.Bae, J.H.Rohmann, E.Wollnik, B.Schlessinger, J.

(2007) Proc.Natl.Acad.Sci.Usa 104: 19802-19807

  • DOI: 10.1073/pnas.0709905104

  • PubMed Abstract: 
  • Mutations in fibroblast growth factor receptor 2 (FGFR2) and its ligand, FGF10, are known to cause lacrimo-auriculo-dento-digital (LADD) syndrome. Multiple gain-of-function mutations in FGF receptors have been implicated in a variety of severe skelet ...

    Mutations in fibroblast growth factor receptor 2 (FGFR2) and its ligand, FGF10, are known to cause lacrimo-auriculo-dento-digital (LADD) syndrome. Multiple gain-of-function mutations in FGF receptors have been implicated in a variety of severe skeletal disorders and in many cancers. We aimed to elucidate the mechanism by which a missense mutation in the tyrosine kinase domain of FGFR2, described in the sporadic case of LADD syndrome, leads to reduced tyrosine kinase activity. In this report, we describe the crystal structure of a FGFR2 A628T LADD mutant in complex with a nucleotide analog. We demonstrate that the A628T LADD mutation alters the configuration of key residues in the catalytic pocket that are essential for substrate coordination, resulting in reduced tyrosine kinase activity. Further comparison of the structures of WT FGFR2 and WT FGFR1 kinases revealed that FGFR2 uses a less stringent mode of autoinhibition than FGFR1, which was also manifested in faster in vitro autophosphorylation kinetics. Moreover, the nearly identical conformation of WT FGFR2 kinase and the A628T LADD mutant to either the phosphorylated FGFR2 or FGFR2 harboring pathological activating mutations in the kinase hinge region suggests that FGFR autoinhibition and activation are better explained by changes in the conformational dynamics of the kinase rather than by static crystallographic snapshots of minor structural variations.


    Organizational Affiliation

    Department of Pharmacology, Yale University School of Medicine, 333 Cedar Street, New Haven, CT 06510, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fibroblast growth factor receptor 2
A, B
311Homo sapiensMutation(s): 2 
Gene Names: FGFR2 (BEK, KGFR, KSAM)
EC: 2.7.10.1
Find proteins for P21802 (Homo sapiens)
Go to Gene View: FGFR2
Go to UniProtKB:  P21802
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
M33
Query on M33

Download SDF File 
Download CCD File 
A, B
5'-O-[(S)-hydroxy{[(S)-hydroxy(methyl)phosphoryl]oxy}phosphoryl]adenosine
C11 H17 N5 O9 P2
IPSMXNMCXMRRGZ-IOSLPCCCSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
M33Kd: 6210 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.201 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 67.698α = 90.00
b = 80.345β = 90.00
c = 118.603γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
HKL-2000data collection
HKL-2000data reduction
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-02-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-10-25
    Type: Refinement description