- Achondroplasia facts
- What is achondroplasia?
- What are the characteristics of achondroplasia?
- How is achondroplasia diagnosed?
- What can be done for patients with achondroplasia?
- How is achondroplasia inherited?
- What if someone with achondroplasia has children?
- What if two people with achondroplasia have children?
- What gene causes achondroplasia?
What gene causes achondroplasia?
Achondroplasia is caused by mutations in the FGFR3 gene which codes for a protein (fibroblast growth factor receptor 3) that is important for the maintenance of bone and brain tissues. Two specific mutations in this gene are responsible for almost all cases of achondroplasia. These mutations limit the process of ossification, or the formation of bone from cartilage. The FGFR3 gene is located on the short (p) arm of chromosome 4 in chromosome band 4p16.3.
Medically reviewed by Aimee V. HachigianGould, MD; American Board of Orthopaedic Surgery
Genetics Home Reference. Achondroplasia.
Genetic and Rare Diseases Information Center (GARD). Achondroplasia. NIH Office of Rare Diseases Research.