A: The variant NC_000021.9:g.43059233TCT[1] in gene CBS is classified as 'Uncertain_significance' for not_provided|Classic_homocystinuria. Molecular consequence: SO:0001822: inframe_deletion. Variant type: Microsatellite. Disease database links: MedGen:C3661900|MONDO:MONDO:0009352,MedGen:C0751202,OMIM:236200,Orphanet:394. Review status: criteria provided, single submitter.