A: The variant NC_000019.10:g.19526257G>A in gene NDUFA13 is classified as 'Likely_pathogenic' for Mitochondrial_complex_1_deficiency,_nuclear_type_28|Mitochondrial_complex_I_deficiency. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0032632,MedGen:C4748827,OMIM:618249|MONDO:MONDO:0100133,MedGen:C1838979,Orphanet:2609. Review status: criteria provided, single submitter.