TIMM8A (translocate of inner mitochondrial membrane 8a) has been found that TIMM8A is related to Mohr-Tranebjaerg syndrome and focal muscle Zhang Li disorder (9).The molecular functions include mitochondrial protein input and protein metabolism.TIMM8B is an important homologue of this gene. The gene discussed is TIMM8A; the disease is Mohr-Tranebjaerg syndrome.