A: The variant NC_000022.11:g.50523674C>G in gene SCO2 is classified as 'Conflicting_classifications_of_pathogenicity' for Mitochondrial_complex_IV_deficiency,_nuclear_type_1|SCO2-related_disorder|Cardioencephalomyopathy,_fatal_infantile,_due_to_cytochrome_c_oxidase_deficiency_1|not_provided. Molecular consequence: SO:0001624: 3_prime_UTR_variant,SO:0001819: synonymous_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0700250,MedGen:C5435656,OMIM:220110|.|MONDO:MONDO:0011451,MedGen:C5399977,OMIM:604377,Orphanet:1561|MedGen:C3661900. Review status: criteria provided, conflicting classifications.