A: The variant NC_000020.11:g.33439020C>T in gene SNTA1 is classified as 'Benign/Likely_benign' for Long_QT_syndrome|Cardiovascular_phenotype|not_specified|Long_QT_syndrome_12|not_provided|Primary_dilated_cardiomyopathy. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0002442,MeSH:D008133,MedGen:C0023976|MedGen:CN230736|MedGen:CN169374|MONDO:MONDO:0013062,MedGen:C2751830,OMIM:612955,Orphanet:101016,Orphanet:768|MedGen:C3661900|EFO:EFO_0000407,Human_Phenotype_Ontology:HP:0001644,Human_Phenotype_Ontology:HP:0001725,Human_Phenotype_Ontology:HP:0005159,Human_Phenotype_Ontology:HP:0200130,MONDO:MONDO:0005021,MeSH:D002311,MedGen:C0007193,Orphanet:217604. Review status: criteria provided, multiple submitters, no conflicts.