Symptom Information: Sort according to HPO 

1
(HPO:0002240) Hepatomegaly Occasional [Orphanet] 467 / 7739
2
(HPO:0001250) Seizures Frequent [Orphanet] 1245 / 7739
3
(HPO:0002121) Absence seizures Frequent [Orphanet] 62 / 7739
4
(HPO:0002133) Status epilepticus Frequent [Orphanet] 59 / 7739
5
(HPO:0011097) Epileptic spasms Frequent [Orphanet] 45 / 7739
6
(HPO:0011147) Typical absence seizures Frequent [Orphanet] 33 / 7739
7
(HPO:0000252) Microcephaly Occasional [Orphanet] 832 / 7739
8
(HPO:0001249) Intellectual disability Frequent [Orphanet] 1089 / 7739
9
(HPO:0001263) Global developmental delay Frequent [Orphanet] 853 / 7739
10
(HPO:0001270) Motor delay Frequent [Orphanet] 322 / 7739
11
(HPO:0001328) Specific learning disability Frequent [Orphanet] 114 / 7739
12
(HPO:0001269) Hemiparesis Occasional [Orphanet] occasional [HPO] 51 / 7739
13
(HPO:0002301) Hemiplegia Occasional [Orphanet] occasional [HPO] 42 / 7739
14
(HPO:0004374) Hemiplegia/hemiparesis Occasional [Orphanet] 158 / 7739
15
(HPO:0001943) Hypoglycemia Frequent [Orphanet] 131 / 7739
16
(HPO:0000020) Urinary incontinence 75 / 7739
17
(HPO:0000648) Optic atrophy 238 / 7739
18
(HPO:0000736) Short attention span 16 / 7739
19
(HPO:0000750) Delayed speech and language development 197 / 7739
20
(HPO:0001251) Ataxia 413 / 7739
21
(HPO:0002066) Gait ataxia 327 / 7739
22
(HPO:0002311) Incoordination 84 / 7739
23
(HPO:0001260) Dysarthria 329 / 7739
24
(HPO:0001332) Dystonia 197 / 7739
25
(HPO:0001347) Hyperreflexia 363 / 7739
26
(HPO:0002267) Exaggerated startle response 42 / 7739
27
(HPO:0007034) Generalized hyperreflexia 33 / 7739
28
(HPO:0001508) Failure to thrive 454 / 7739
29
(HPO:0001510) Growth delay 295 / 7739
30
(HPO:0001942) Metabolic acidosis 81 / 7739
31
(HPO:0002059) Cerebral atrophy 171 / 7739
32
(HPO:0002305) Athetosis 31 / 7739
33
(HPO:0002352) Leukoencephalopathy 32 / 7739
34
(HPO:0002373) Febrile seizures 37 / 7739
35
(HPO:0002510) Spastic tetraplegia 54 / 7739
36
(HPO:0100543) Cognitive impairment Frequent [Orphanet] 230 / 7739
37
(OMIM) Cerebral atrophy, progressive 4 / 7739
38
(OMIM) Basal ganglia atrophy, progressive 1 / 7739
39
(OMIM) Increased urinary 3-methylglutaconic acid 2 / 7739
40
(OMIM) Increased urinary hydroxyisovaleric acid 1 / 7739
41
(OMIM) Decreased activity of 3-methylglutaconyl-CoA hydratase 1 / 7739