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Cell Mol Life Sci. 2011 Mar;68(6):951-64. doi: 10.1007/s00018-010-0576-3. Epub 2010 Nov 16.

Biology of FGFRL1, the fifth fibroblast growth factor receptor.

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1
Department of Clinical Research, University of Bern, Switzerland. beat.trueb@dkf.unibe.ch

Abstract

FGFRL1 (fibroblast growth factor receptor like 1) is the most recently discovered member of the FGFR family. It contains three extracellular Ig-like domains similar to the classical FGFRs, but it lacks the protein tyrosine kinase domain and instead contains a short intracellular tail with a peculiar histidine-rich motif. The gene for FGFRL1 is found in all metazoans from sea anemone to mammals. FGFRL1 binds to FGF ligands and heparin with high affinity. It exerts a negative effect on cell proliferation, but a positive effect on cell differentiation. Mice with a targeted deletion of the Fgfrl1 gene die perinatally due to alterations in their diaphragm. These mice also show bilateral kidney agenesis, suggesting an essential role for Fgfrl1 in kidney development. A human patient with a frameshift mutation exhibits craniosynostosis, arguing for an additional role of FGFRL1 during bone formation. FGFRL1 contributes to the complexity of the FGF signaling system.

PMID:
21080029
DOI:
10.1007/s00018-010-0576-3
[Indexed for MEDLINE]
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