A: The variant NC_000020.11:g.38002767G>A in gene TTI1 is classified as 'Likely_pathogenic' for Intellectual_disability,_severe. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: Human_Phenotype_Ontology:HP:0007196,Human_Phenotype_Ontology:HP:0010864,MedGen:C0036857. Review status: criteria provided, single submitter.