FGFR2 (Fibroblast Growth Factor Receptor 2): FGFR2 is a receptor that binds to fibroblast growth factors and plays a key role in cell growth, differentiation, and tissue repair. It is essential for normal development, and mutations in FGFR2 are associated with several developmental disorders such as craniosynostosis and skeletal dysplasia, as well as being involved in certain cancers.