A: The variant NC_000021.9:g.34449526_34449527delinsCC in gene KCNE1 is classified as 'Uncertain_significance' for Jervell_and_Lange-Nielsen_syndrome_2|Long_QT_syndrome_5|Cardiovascular_phenotype|Long_QT_syndrome|not_provided. Molecular consequence: SO:0001583: missense_variant. Variant type: Indel. Disease database links: MONDO:MONDO:0012871,MedGen:C2676723,OMIM:612347,Orphanet:768,Orphanet:90647|MONDO:MONDO:0013372,MedGen:C1867904,OMIM:613695,Orphanet:101016,Orphanet:768|MedGen:CN230736|MONDO:MONDO:0002442,MeSH:D008133,MedGen:C0023976|MedGen:C3661900. Review status: criteria provided, multiple submitters, no conflicts.