A: The variant NC_000020.11:g.44428357dup in gene HNF4A is classified as 'Pathogenic' for Maturity-onset_diabetes_of_the_young_type_1. Molecular consequence: SO:0001589: frameshift_variant. Variant type: Duplication. Disease database links: MONDO:MONDO:0007452,MedGen:C1852093,OMIM:125850,Orphanet:552. Review status: criteria provided, single submitter.