A: The variant NC_000021.9:g.46122139C>G in gene COL6A2 is classified as 'Uncertain_significance' for Myosclerosis. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0009714,MedGen:C1850671,OMIM:255600,Orphanet:289380. Review status: criteria provided, single submitter.