A: The variant NC_000021.9:g.34458660A>G in gene KCNE1 is classified as 'Uncertain_significance' for Congenital_long_QT_syndrome|Jervell_and_Lange-Nielsen_syndrome_2|Long_QT_syndrome_5. Molecular consequence: SO:0001623: 5_prime_UTR_variant,SO:0001627: intron_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0019171,MedGen:C1141890,OMIM:PS192500,Orphanet:101016,Orphanet:768|MONDO:MONDO:0012871,MedGen:C2676723,OMIM:612347,Orphanet:768,Orphanet:90647|MONDO:MONDO:0013372,MedGen:C1867904,OMIM:613695,Orphanet:101016,Orphanet:768. Review status: criteria provided, single submitter.