Clinical features of HD-like patients with CAG/CAA repeat expansion in the SCA17/TBP gene (one patient has been described in detail elsewhere¹⁶

Pat ID	Number of CAG/CAA repeats	Sex	Family history	Age at onset	Presenting symptom	Dementia	Psychiatric disturbances	Ataxia	Chorea
AD: autosomal dominant; “not reported” denotes that the clinical data accompanying the blood sample at the date of testing did not mention whether the clinical feature was present or not. As some DNA samples had been collected over 10 years ago, some patients were unavailable for a clinical update.
1	34/50	Male	AD	<45	Not reported	Not reported	Not reported	Not reported	Not reported
2	37/48	Female	Not reported	<68	Not reported	Not reported	Not reported	Not reported	Not reported
3	36/46	Female	AD	36	Not reported	Yes	No	Yes	Yes
4	35/46	Male	Sporadic	37	Psychiatric disturbances	Not reported	Yes	Yes	Yes
5	36/50	Male	AD	32	Dementia	Yes	Yes	Yes	Not reported
6	35/51	Female	AD	32	Focal dystonia	Yes	Yes	Yes	No
7	37/48	Male	AD	35?	Dementia	Yes	No	Yes	No
8	35/46	Male	AD	38	Dementia	Yes	No	Yes	Yes
9	40/52	Male	Not reported	50	Hyperkinesia	Not reported	Not reported	Not reported	Not reported