Mutations in the FGFR3 gene cause Crouzonodermoskeletal syndrome. The protein made by the FGFR3 gene is a receptor that plays a role in the development and maintenance of bone and brain tissue. Researchers do not know how a mutation in FGFR3 leads to the characteristic features of this disorder, but changes in the receptor appear to disrupt the normal development of bones in the skull and affect skin pigmentation.
