A Molecular Brake in the Kinase Hinge Region Regulates the Activity of Receptor Tyrosine Kinases

Activating mutations in the tyrosine kinase domain of receptor tyrosine kinases (RTKs) cause cancer and skeletal disorders. Comparison of the crystal structures of unphosphorylated and phosphorylated wild-type FGFR2 kinase domains with those of seven unphosphorylated pathogenic mutants reveals an au...

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Veröffentlicht in:Molecular Cell 2007-09, Vol.27 (5), p.717-730
Hauptverfasser: Chen, Huaibin, Ma, Jinghong, Li, Wanqing, Eliseenkova, Anna V., Xu, Chongfeng, Neubert, Thomas A., Miller, W. Todd, Mohammadi, Moosa
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container_end_page 730
container_issue 5
container_start_page 717
container_title Molecular Cell
container_volume 27
creator Chen, Huaibin
Ma, Jinghong
Li, Wanqing
Eliseenkova, Anna V.
Xu, Chongfeng
Neubert, Thomas A.
Miller, W. Todd
Mohammadi, Moosa
description Activating mutations in the tyrosine kinase domain of receptor tyrosine kinases (RTKs) cause cancer and skeletal disorders. Comparison of the crystal structures of unphosphorylated and phosphorylated wild-type FGFR2 kinase domains with those of seven unphosphorylated pathogenic mutants reveals an autoinhibitory “molecular brake” mediated by a triad of residues in the kinase hinge region of all FGFRs. Structural analysis shows that many other RTKs, including PDGFRs, VEGFRs, KIT, CSF1R, FLT3, TEK, and TIE, are also subject to regulation by this brake. Pathogenic mutations activate FGFRs and other RTKs by disengaging the brake either directly or indirectly.
doi_str_mv 10.1016/j.molcel.2007.06.028
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subjects Amino Acid Sequence
CRYSTAL STRUCTURE
Crystallography, X-Ray
Enzyme Activation
Humans
Hydrogen Bonding
MATERIALS SCIENCE
Models, Molecular
Molecular Sequence Data
MUTANTS
Mutation
MUTATIONS
national synchrotron light source
NEOPLASMS
Phosphorylation
PHOSPHOTRANSFERASES
Protein Structure, Tertiary
Receptor, Fibroblast Growth Factor, Type 2 - chemistry
Receptor, Fibroblast Growth Factor, Type 2 - genetics
Receptor, Fibroblast Growth Factor, Type 2 - metabolism
RECEPTORS
REGULATIONS
RESIDUES
Sequence Alignment
SIGNALING
SKELETON
TYROSINE
title A Molecular Brake in the Kinase Hinge Region Regulates the Activity of Receptor Tyrosine Kinases
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