fibroblast growth factor receptor 3
Dernière mise à jour 29 mai 2023
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The FGFR3 gene provides instructions for making a protein called fibroblast growth factor receptor 3. This protein is part of a family of four fibroblast growth factor receptors that share similar structures and functions. These proteins play a role in several important cellular processes, including regulation of cell growth and division (proliferation), determination of cell type, formation of blood vessels (angiogenesis), wound healing, and embryo development.
Normal function
The FGFR3 gene provides instructions for making a protein called fibroblast growth factor receptor 3. This protein is part of a family of four fibroblast growth factor receptors that share similar structures and functions. These proteins play a role in several important cellular processes, including regulation of cell growth and division (proliferation), determination of cell type, formation of blood vessels (angiogenesis), wound healing, and embryo development.
The FGFR3 protein spans the cell membrane, so that one end of the protein remains inside the cell and the other end projects from the outer surface of the cell. This allows the protein to interact with specific growth factors outside the cell and receive signals that control growth and development. When these growth factors attach to the FGFR3 protein, the protein is turned on (activated). This triggers a cascade of chemical reactions inside the cell that instruct the cell to undergo certain changes, such as maturing to take on specialized functions (differentiation).
Several versions (isoforms) of the FGFR3 protein are produced from the FGFR3 gene. The different isoforms are found in various tissues of the body, and they interact with a variety of growth factors. Many isoforms are found in the cells that form bones. Researchers believe that the FGFR3 protein regulates bone growth by limiting the formation of bone from cartilage. Cartilage is a tough but flexible tissue that makes up much of the skeleton during early development. The process of converting cartilage to bone is called ossification. One particular isoform of the FGFR3 protein is found specifically in cells that line the surfaces of the body (epithelial cells), including the cells that form the outermost layer of skin, called the epidermis.
Conditions referring to this gene or chromosome
Other names
ACH
CD333
CEK2
FGFR-3
FGR3_HUMAN
fibroblast growth factor receptor 3 (achondroplasia, thanatophoric dwarfism)
HBGFR
hydroxyaryl-protein kinase
JTK4
tyrosine kinase JTK4
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Lectures complémentaires et références
- fibroblast growth factor receptor 3; MedlinePlus, National Library of Medicine.
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- Vajo Z, Francomano CA, Wilkin DJ. The molecular and genetic basis of fibroblast growth factor receptor 3 disorders: the achondroplasia family of skeletal dysplasias, Muenke craniosynostosis, and Crouzon syndrome with acanthosis nigricans. Endocr Rev. 2000 Feb;21(1):23-39. doi: 10.1210/edrv.21.1.0387.
- van Rhijn BW, van Tilborg AA, Lurkin I, Bonaventure J, de Vries A, Thiery JP, van der Kwast TH, Zwarthoff EC, Radvanyi F. Novel fibroblast growth factor receptor 3 (FGFR3) mutations in bladder cancer previously identified in non-lethal skeletal disorders. Eur J Hum Genet. 2002 Dec;10(12):819-24. doi: 10.1038/sj.ejhg.5200883.
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