Symptom Information: Sort according to HPO 

1
(HPO:0001249) Intellectual disability 1089 / 7739
2
(HPO:0001263) Global developmental delay 853 / 7739
3
(HPO:0001250) Seizures 1245 / 7739
4
(HPO:0001252) Muscular hypotonia 990 / 7739
5
(HPO:0001324) Muscle weakness 859 / 7739
6
(HPO:0001254) Lethargy 104 / 7739
7
(HPO:0001259) Coma 65 / 7739
8
(HPO:0001347) Hyperreflexia 363 / 7739
9
(HPO:0001508) Failure to thrive 454 / 7739
10
(HPO:0002013) Vomiting 191 / 7739
11
(HPO:0002179) Opisthotonus 35 / 7739
12
(HPO:0004911) Episodic metabolic acidosis 5 / 7739
13
(HPO:0008281) Acute hyperammonemia 2 / 7739
14
(OMIM) Apnea, acute 1 / 7739
15
(OMIM) Macro- and microvesicular steatosis, acute 1 / 7739
16
(HPO:0011968) Feeding difficulties 240 / 7739
17
(HPO:0008947) Infantile muscular hypotonia 482 / 7739
18
(HPO:0010547) Muscle flaccidity 466 / 7739
19
(OMIM) Neurologic sequelae not always present 1 / 7739
20
(OMIM) Metabolic decompensation precipitated by illness 1 / 7739
21
(OMIM) Hypoglycemia, acute 1 / 7739
22
(OMIM) Urinary excretion of 3-methylcrotonylglycine, chronic 1 / 7739
23
(OMIM) Urinary excretion of 3-hydroxyisovaleric acid, chronic 1 / 7739
24
(OMIM) Secondary decrease of plasma free carnitine 1 / 7739
25
(OMIM) Ketonuria, acute 1 / 7739
26
(OMIM) Decreased activity of 3-methylcrotonyl-CoA carboxylase (less than 2%) 1 / 7739