RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
A mitochondrial DNA depletion syndrome that is characterized by infantile onset of hypotonia, lactic acidosis, severe psychomotor retardation, progressive neurologic deterioration, and excretion of methylmalonic acid, and has_material_basis_in autosomal recessive inheritance of homozygous or compound heterozygous mutation in the alpha subunit of the succinate-CoA ligase gene on chromosome 2p11. (DO)
Synonyms:
exact_synonym:
MTDPS9; Mitochondrial DNA Depletion Syndrome 9 (Encephalomyopathic Type with Methylmalonic Aciduria); fatal infantile lactic acidosis; mitochondrial DNA depletion syndrome 9 (encephalomyopathic with methylmalonic aciduria)