Table.
Type of Movement Disorders in 77 Patients With Genetic DEEs
| Gene | No. of patients | Already described in literature | Stereotypies | Dystonia | Chorea | Ataxia | Myoclonus | Hypokinesia | Other |
| ALG13 | 3 | 1 case22 | 1 | 0 | 2 | 0 | 0 | 0 | Dyskinesia |
| ATP1A2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | Dyskinesia | |
| ATP1A3 | 2 | 1 case35 | 1 | 1 | 0 | 1 | 0 | 1 | Paroxysmal MD |
| BRAT1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | Tremor | |
| CACNA1E | 1 | 0 | 1 | 1 | 0 | 0 | 0 | No | |
| CAMK2A | 1 | 0 | 1 | 1 | 0 | 1 | 0 | No | |
| CAMK2B | 1 | 1 | 0 | 0 | 0 | 0 | 0 | No | |
| CDKL5 | 7 | 7 | 0 | 1 | 1 | 0 | 0 | Tremor, dyskinesia | |
| CHD2 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | Tremor | |
| DNM1 | 2 | 2 case24 | 2 | 2 | 1 | 0 | 0 | 0 | Eye blinking |
| DNM1L | 2 | 0 | 2 | 0 | 0 | 2 | 0 | Spasticity, paroxysmal MD | |
| FGF12 | 1 | 1 case36 | 1 | 0 | 0 | 0 | 0 | 0 | Dyskinesia |
| FRRS1L | 1 | 0 | 1 | 0 | 1 | 0 | 0 | No | |
| GNAO1 | 3 | 3 cases14,22 | 0 | 3 | 3 | 0 | 0 | 0 | Acute dyskinetic exacerbations |
| GRIN1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | No | |
| HUWE1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | No | |
| KCNA2 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | No | |
| KCNB1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | No | |
| KCNQ2 | 3 | 2 | 0 | 2 | 0 | 1 | 0 | No | |
| KCNT1 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | Spasticity | |
| LIS1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | Paroxysmal MD | |
| MBD5 | 1 | 1 case37 | 1 | 0 | 0 | 0 | 0 | 0 | No |
| MECP2 | 4 | 3 | 1 | 0 | 1 | 0 | 0 | Crouch gait | |
| MED13 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | No | |
| MEF2C | 1 | 1 case17 | 1 | 0 | 0 | 1 | 1 | 0 | No |
| PIGA | 2 | 1 case38 | 2 | 1 | 2 | 0 | 0 | 1 | No |
| PIGV | 1 | 1 | 0 | 0 | 0 | 1 | 0 | No | |
| PLPBP | 1 | 1 | 0 | 0 | 0 | 0 | 0 | No | |
| SCN1A | 6 | 2 cases19,20 | 1 | 2 | 1 | 3 | 2 | 0 | Crouch gait, tremor |
| SCN2A | 5 | 2 cases21 | 0 | 4 | 0 | 0 | 1 | 1 | Tremor, exaggerated startle, paroxysmal MD |
| SCN8A | 2 | 2 cases39 | 0 | 2 | 0 | 0 | 1 | 1 | Spasticity, paroxysmal MD |
| SLC2A1 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | Crouch gait, paroxysmal MD | |
| SLC35A2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | No | |
| SLC6A1 | 1 | 1 case40 | 1 | 0 | 0 | 0 | 0 | 0 | Stereotypies are tics |
| STXBP1 | 7 | 4 cases15-18 | 4 | 3 | 2 | 0 | 1 | 2 | Tremor, dyskinesia |
| SYNGAP1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | No | |
| UGDH | 1 | 1 | 1 | 0 | 0 | 1 | 0 | Paroxysmal MD |
Abbreviations: DEE = developmental and epileptic encephalopathy; MD = movement disorder.