The SCA27B test (repeat GAA expansion in FGF14) is now also available through Variantyx. Your neurologist or genetic counselor can order your test here:

Your provider will need to set up a simple online account with a UN/PW to order your genetic test through the online portal. Variantyx will test for the repeat expansion causing SCA27B with a panel of other hereditary ataxias. Your provider will determine what test panel is best for you.