A: The variant NC_000019.10:g.19198128del in gene RFXANK is classified as 'Likely_pathogenic' for MHC_class_II_deficiency. Molecular consequence: SO:0001589: frameshift_variant. Variant type: Deletion. Disease database links: MONDO:MONDO:0008855,MedGen:C5447452,OMIM:PS209920,Orphanet:572. Review status: criteria provided, single submitter.