A: The variant NC_000019.10:g.46608479del in gene CALM3 is classified as 'Uncertain_significance' for Long_QT_syndrome_1|Long_QT_syndrome_16. Molecular consequence: SO:0001627: intron_variant. Variant type: Deletion. Disease database links: MONDO:MONDO:0100316,MedGen:C4551647,OMIM:192500,Orphanet:101016,Orphanet:768|MONDO:MONDO:0032915,MedGen:C5394068,OMIM:618782. Review status: criteria provided, multiple submitters, no conflicts.