What gene causes Canavan disease?
Unexpected changes in the ASPA gene have been shown to cause Canavan disease. This is the only gene in which unexpected changes are known to cause the disease. Genes are segments of DNA found on chromosomes. Genes produce specific proteins that the body needs to grow and work properly. When there is an unexpected change in a gene, the protein that the gene produces may be absent, deficient, or faulty and ineffective. The ASPA gene gives instructions to the body to make an enzyme called aspartoacylase.