A: The variant NC_000021.9:g.33782035G>T in gene ITSN1 is classified as 'Uncertain_significance' for Autistic_behavior. Molecular consequence: SO:0001587: nonsense. Variant type: single_nucleotide_variant. Disease database links: Human_Phenotype_Ontology:HP:0000729,MedGen:C0856975. Review status: criteria provided, single submitter.