This gene encodes a member of the fibroblast growth factor receptor (FGFR) family, with its amino acid sequence being highly conserved between members and among divergent species. FGFR family members differ from one another in their ligand affinities and tissue distribution. A full-length representative protein would consist of an extracellular region, composed of three immunoglobulin-like domains, a single hydrophobic membrane-spanning segment and a cytoplasmic tyrosine kinase domain. The extracellular portion of the protein interacts with fibroblast growth factors, setting in motion a cascade of downstream signals, ultimately influencing mitogenesis and differentiation. This particular family member binds acidic and basic fibroblast growth hormone and plays a role in bone development and maintenance. Mutations in this gene lead to craniosynostosis and multiple types of skeletal dysplasia. Three alternatively spliced transcript variants that encode different protein isoforms have been described.
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Protein Aliases: CD333; FGFR-3; FGFR3deltaTM; Fibroblast growth factor receptor 3; fibroblast growth factor receptor 3 variant 4; heparin-binding growth factor receptor; hydroxyaryl-protein kinase; tyrosine kinase JTK4
Gene Aliases: ACH; CD333; CEK2; Fgfr-3; FGFR3; Flg-2; FR3; HBGFR; HSFGFR3EX; JTK4; Mfr3; sam3
UniProt ID: (Human) P22607
Molecular Function: transmembrane signal receptor