A: The variant NC_000020.11:g.25077849C>A in gene VSX1 is classified as 'Uncertain_significance' for Congenital_long_QT_syndrome. Molecular consequence: SO:0001583: missense_variant,SO:0001619: non-coding_transcript_variant,SO:0001623: 5_prime_UTR_variant,SO:0001627: intron_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0019171,MedGen:C1141890,OMIM:PS192500,Orphanet:101016,Orphanet:768. Review status: no assertion criteria provided.