A: The variant NC_000021.9:g.34449608C>G in gene KCNE1 is classified as 'not_provided' for Long_QT_syndrome_5. Molecular consequence: SO:0001819: synonymous_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0013372,MedGen:C1867904,OMIM:613695,Orphanet:101016,Orphanet:768. Review status: no classification provided.