A: The variant NC_000020.11:g.33412725A>T in gene SNTA1 is classified as 'Uncertain_significance' for Cardiovascular_phenotype|Long_QT_syndrome|Long_QT_syndrome_12|not_specified|not_provided. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: MedGen:CN230736|MONDO:MONDO:0002442,MeSH:D008133,MedGen:C0023976|MONDO:MONDO:0013062,MedGen:C2751830,OMIM:612955,Orphanet:101016,Orphanet:768|MedGen:CN169374|MedGen:C3661900. Review status: criteria provided, multiple submitters, no conflicts.