A: The variant NC_000021.9:g.34364043C>T in gene KCNE2 is classified as 'Uncertain_significance' for Long_QT_syndrome|Congenital_long_QT_syndrome|Long_QT_syndrome_6|Atrial_fibrillation,_familial,_4|Familial_atrial_fibrillation. Molecular consequence: SO:0001623: 5_prime_UTR_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0002442,MeSH:D008133,MedGen:C0023976|MONDO:MONDO:0019171,MedGen:C1141890,OMIM:PS192500,Orphanet:101016,Orphanet:768|MONDO:MONDO:0013370,MedGen:C3150953,OMIM:613693,Orphanet:101016,Orphanet:768|MONDO:MONDO:0012677,MedGen:C1862394,OMIM:611493|MONDO:MONDO:0018054,MedGen:C3468561,OMIM:PS608583,Orphanet:334. Review status: criteria provided, multiple submitters, no conflicts.