A: The variant NC_000019.10:g.29213078A>T in gene UQCRFS1 is classified as 'Pathogenic' for Mitochondrial_complex_3_deficiency,_nuclear_type_10|Propionic_acidemia|Cardiomyopathy|Lactic_acidosis. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0032909,MedGen:C5394051,OMIM:618775|Human_Phenotype_Ontology:HP:0003571,MONDO:MONDO:0011628,MedGen:C0268579,OMIM:606054,Orphanet:35|Human_Phenotype_Ontology:HP:0001638,MONDO:MONDO:0004994,MedGen:C0878544,Orphanet:167848|Human_Phenotype_Ontology:HP:0003128,Human_Phenotype_Ontology:HP:0003255,Human_Phenotype_Ontology:HP:0005960,MONDO:MONDO:0006040,MedGen:C0001125. Review status: criteria provided, single submitter.