A: The variant NC_000020.11:g.48989309G>A in gene ARFGEF2 is classified as 'Uncertain_significance' for Intellectual_disability|Periventricular_heterotopia_with_microcephaly,_autosomal_recessive. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: Human_Phenotype_Ontology:HP:0000730,Human_Phenotype_Ontology:HP:0001249,Human_Phenotype_Ontology:HP:0001267,Human_Phenotype_Ontology:HP:0001286,Human_Phenotype_Ontology:HP:0002122,Human_Phenotype_Ontology:HP:0002192,Human_Phenotype_Ontology:HP:0002316,Human_Phenotype_Ontology:HP:0002382,Human_Phenotype_Ontology:HP:0002386,Human_Phenotype_Ontology:HP:0002402,Human_Phenotype_Ontology:HP:0002458,Human_Phenotype_Ontology:HP:0002482,Human_Phenotype_Ontology:HP:0002499,Human_Phenotype_Ontology:HP:0002543,Human_Phenotype_Ontology:HP:0003767,Human_Phenotype_Ontology:HP:0006833,Human_Phenotype_Ontology:HP:0007154,Human_Phenotype_Ontology:HP:0007176,Human_Phenotype_Ontology:HP:0007180,MONDO:MONDO:0001071,MeSH:D008607,MedGen:C3714756|MONDO:MONDO:0011966,MedGen:C1842563,OMIM:608097,Orphanet:2149. Review status: criteria provided, single submitter.