Table 3 Clinical features and BSN mutations of the patients with idiopathic PSP-like syndrome.

From: Mutations in bassoon in individuals with familial and sporadic progressive supranuclear palsy-like syndrome

Case number

1

2

3

4

Disease type

PSP-PI

PSP-CBS

PSP-CBS

PSP-FTD

Mutation

c.9436 C > T (p.R3146C)

c.9436 C > T (p.R3146C)

c.8564 C > T (p.P2855L)

c.10880 G > T (p.G3627V)

Age at onset (years)

78

70

65

75

Age at examination (years)

83

76

72

76

Rigidity of the neck

+

+

Postural instability

++

++

+

Supranuclear palsy

±

+

±

±

Cognitive dysfunction

+

+

+

Atrophy of the temporal lobe

+

+

+

Atrophy of the brain stem

+

Hot cross bun sign

Other MRI findings

Abnormal pontine signal

None

None

Abnormal pontine signal

1000 Genomes

0.0002/1

0.0002/1

Unreported

T = 0.000

HGVD

0.003/1

0.003/1

Unreported

T = 0.002

ExAC

0.00003315

0.00003315

Unreported

0.0004181

SIFT

Damaging

Damaging

Damaging

Damaging

PolyPhen-2

Benign

Benign

Probably damaging

Probably damaging

MutationTaster

Disease causing

Disease causing

Disease causing

Disease causing