A: The variant NC_000020.11:g.508457del in gene CSNK2A1 is classified as 'Pathogenic' for not_provided|Okur-Chung_neurodevelopmental_syndrome. Molecular consequence: SO:0001589: frameshift_variant,SO:0001627: intron_variant. Variant type: Deletion. Disease database links: MedGen:C3661900|MONDO:MONDO:0014893,MedGen:C4310739,OMIM:617062. Review status: criteria provided, single submitter.