A: The variant NC_000021.9:g.43774344G>A in gene CSTB is classified as 'Conflicting_classifications_of_pathogenicity' for Progressive_myoclonic_epilepsy|Unverricht-Lundborg_syndrome. Molecular consequence: SO:0001627: intron_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0020074,MedGen:C0751778,OMIM:PS254800,Orphanet:308,Orphanet:98261|MONDO:MONDO:0009698,MedGen:C0751785,OMIM:254800,Orphanet:308. Review status: criteria provided, conflicting classifications.