A: The variant NC_000022.11:g.30612911A>C in gene TCN2 is classified as 'Conflicting_classifications_of_pathogenicity' for TCN2-related_disorder|Transcobalamin_II_deficiency|not_provided. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: .|MONDO:MONDO:0010149,MedGen:C0342701,OMIM:275350,Orphanet:859|MedGen:C3661900. Review status: criteria provided, conflicting classifications.