A: The variant NC_000019.10:g.45414887T>A in gene ERCC1 is classified as 'not_provided' for Cockayne_syndrome. Molecular consequence: SO:0001587: nonsense. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0016006,MedGen:C0009207,Orphanet:191. Review status: no classification provided.