Mitochondrial Complex I Deficiency, Nuclear Type 33, also known as mc1dn33, is related to chromosome 17q12 deletion syndrome and charcot-marie-tooth disease, type 4b3. An important gene associated with Mitochondrial Complex I Deficiency, Nuclear Type 33 is NDUFA6 (NADH:Ubiquinone Oxidoreductase Subunit A6). Affiliated tissues include liver, and related phenotypes are seizure and optic atrophy