A: The variant NC_000019.10:g.15264733T>G in gene BRD4 is classified as 'Uncertain_significance' for Mental_disorder|Cornelia_de_Lange_syndrome_6. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0005084,MeSH:D001523,MedGen:C0004936|MONDO:MONDO:0957921,MedGen:C5882712,OMIM:620568. Review status: criteria provided, multiple submitters, no conflicts.