A: The variant NC_000021.9:g.34370847_34370848del in gene KCNE2 is classified as 'Conflicting_classifications_of_pathogenicity' for Long_QT_syndrome_6|Atrial_fibrillation,_familial,_4|Cardiovascular_phenotype|not_provided. Molecular consequence: SO:0001589: frameshift_variant. Variant type: Deletion. Disease database links: MONDO:MONDO:0013370,MedGen:C3150953,OMIM:613693,Orphanet:101016,Orphanet:768|MONDO:MONDO:0012677,MedGen:C1862394,OMIM:611493|MedGen:CN230736|MedGen:C3661900. Review status: criteria provided, conflicting classifications.