A: The variant NC_000021.9:g.34449581C>T in gene KCNE1 is classified as 'Conflicting_classifications_of_pathogenicity' for Cardiovascular_phenotype|not_specified|Long_QT_syndrome_5|Jervell_and_Lange-Nielsen_syndrome_2|Congenital_long_QT_syndrome|Long_QT_syndrome. Molecular consequence: SO:0001819: synonymous_variant. Variant type: single_nucleotide_variant. Disease database links: MedGen:CN230736|MedGen:CN169374|MONDO:MONDO:0013372,MedGen:C1867904,OMIM:613695,Orphanet:101016,Orphanet:768|MONDO:MONDO:0012871,MedGen:C2676723,OMIM:612347,Orphanet:768,Orphanet:90647|MONDO:MONDO:0019171,MedGen:C1141890,OMIM:PS192500,Orphanet:101016,Orphanet:768|MONDO:MONDO:0002442,MeSH:D008133,MedGen:C0023976. Review status: criteria provided, conflicting classifications.