Mondo Description Any spastic quadriplegia in which the cause of the disease is a mutation in the GAD1 gene.

Uniprot Description A non-progressive disorder of movement and/or posture resulting from defects in the developing central nervous system. Affected individuals manifest symmetrical, non-progressive spasticity and no adverse perinatal history or obvious underlying alternative diagnosis. Developmental delay, mental retardation and sometimes epilepsy can be part of the clinical picture.