Symptom Information: Sort according to HPO 

1
(HPO:0000737) Irritability rare [HPO:skoehler] 93 / 7739
2
(HPO:0001251) Ataxia 413 / 7739
3
(HPO:0001263) Global developmental delay 853 / 7739
4
(HPO:0001266) Choreoathetosis 57 / 7739
5
(HPO:0001332) Dystonia 197 / 7739
6
(HPO:0001923) Reticulocytosis 28 / 7739
7
(HPO:0002059) Cerebral atrophy 171 / 7739
8
(HPO:0002076) Migraine rare [HPO:skoehler] 41 / 7739
9
(HPO:0011972) Hypoglycorrhachia 2 / 7739
10
(HPO:0100660) Dyskinesia 19 / 7739
11
(OMIM) Dyskinesia, limb, exertion-induced 1 / 7739
12
(OMIM) Dystonia, limb, exercise-induced 1 / 7739
13
(OMIM) Flaccidity, episodic 1 / 7739
14
(OMIM) Ataxia, mild 2 / 7739
15
(OMIM) Seizures, particularly absence (in some patients) 1 / 7739
16
(HPO:0002353) EEG abnormality 188 / 7739
17
(OMIM) Generalized spike wave discharges 1 / 7739
18
(OMIM) Generalized slowing 1 / 7739
19
(HPO:0100543) Cognitive impairment 230 / 7739
20
(MedDRA:10011537) CSF glucose decreased 1 / 7739
21
(OMIM) Macrocytic hemolytic anemia, appears in infancy (in 1 family) 1 / 7739
22
(OMIM) Echinocytes 1 / 7739
23
(OMIM) Erythrocytes have defects in cation permeability 1 / 7739
24
(OMIM) Low-to-normal CSF lactate 2 / 7739
25
(OMIM) Increased serum bilirubin due to hemolysis 1 / 7739
26
(HPO:0000006) Autosomal dominant inheritance 2518 / 7739
27
(HPO:0003829) Incomplete penetrance 85 / 7739