A: The variant NC_000020.11:g.34294160G>C in gene AHCY is classified as 'Likely_benign' for Hypermethioninemia_with_deficiency_of_S-adenosylhomocysteine_hydrolase. Molecular consequence: SO:0001627: intron_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0013404,MedGen:C3151058,OMIM:613752,Orphanet:88618. Review status: criteria provided, single submitter.