nuclear type mitochondrial complex I deficiency 20
Definition
A nuclear type mitochondrial complex I deficiency characterized by infantile onset of acute metabolic acidosis, hypertrophic cardiomyopathy, and muscle weakness associated with deficiency of mitochondrial complex I activity in muscle, liver, and fibroblasts that has_material_basis_in homozygous or compound heterozygous mutation in the ACAD9 gene on chromosome 3q21.3.