RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
Term:
spastic tetraplegia, thin corpus callosum, and progressive microcephaly
An autosomal recessive intellectual developmental disorder characterized by neonatal or infantile onset of spastic tetraplegia, thin corpus callosum, progressive microcephaly, and severely impaired global development that has_material_basis_in homozygous or compound heterozygous mutation in the SLC1A4 gene on chromosome 2p14. (DO)