A: The variant NC_000020.11:g.40689119C>G in gene MAFB is classified as 'Uncertain_significance' for Multicentric_carpo-tarsal_osteolysis_with_or_without_nephropathy. Molecular consequence: SO:0001623: 5_prime_UTR_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0008152,MedGen:C2674705,OMIM:166300,Orphanet:2774. Review status: criteria provided, single submitter.