It is caused by mutations in the monocarboxylate transporter 8 gene (SLC16A2 [solute carrier family 16, member 2]), located on the X chromosome.

• 这是造成基因突变，在单羧酸转运8基因（ slc16a2 [溶质载体家族16个，会员2 ] ） ，坐落于x染色体上。