Symptom Information: Sort according to HPO 

1
(HPO:0002066) Gait ataxia Very frequent [Orphanet] 327 / 7739
2
(HPO:0000496) Abnormality of eye movement Very frequent [Orphanet] 79 / 7739
3
(HPO:0000639) Nystagmus Very frequent [Orphanet] 555 / 7739
4
(HPO:0000464) Abnormality of the neck 31 / 7739
5
(HPO:0001270) Motor delay 322 / 7739
6
(HPO:0002131) Episodic ataxia 16 / 7739
7
(HPO:0002312) Clumsiness 28 / 7739
8
(HPO:0002548) Parkinsonism with favorable response to dopaminergic medication 13 / 7739
9
(OMIM) Episodic tonic upward deviation of eyes 1 / 7739
10
(OMIM) Delayed walking 13 / 7739
11
(OMIM) Forward neck bending 1 / 7739
12
(HPO:0000006) Autosomal dominant inheritance 2518 / 7739