DO_rare_slim has material basis in existence starts during autosomal dominant disease glucose transporter type 1 deficiency syndrome glucose transporter type 1 deficiency syndrome 2 DOID:0090045 UMLS_CUI:C1842534 ORDO:98811 disease_ontology MESH:C564288 MIM:612126 GARD:10541 A dystonia characterized by paroxysmal exercise-induced dyskinesia involving transient abnormal involuntary movements in the exercised limbs that has_material_basis_in heterozygous mutation in the SLC2A1 gene on chromosome 1p34. MESH:C564288 DYT18 SNOMEDCT_US_2025_09_01:724072002 ORDO:98811 GLUT1 deficiency syndrome 2 GLUT1DS2 UMLS_CUI:C1842534 MIM:612126 GARD:10541 PED childhood-onset GLUT1 deficiency syndrome 2 dystonia 18 paroxysmal exercise-induced dyskinesia paroxysmal exertion-induced dyskinesia dystonia autosomal dominant inheritance Childhood onset