Adult onset neurodegenerative disorder

Gene: AFG3L2

Green List (high evidence)

Spastic ataxia-5 (SPAX5) is an autosomal recessive neurodegenerative disorder characterized by early-onset spasticity resulting in significantly impaired ambulation, cerebellar ataxia, oculomotor apraxia, dystonia, and myoclonic epilepsy. Variable severity.SCA28 is a juvenile-onset spinocerebellar ataxia inherited in an autosomal dominant pattern. The mean age at onset was 19.5 years (range 12 to 36) with unbalanced standing and gait abnormalities.The disorder was slowly progressive, and there was no evidence of sensory involvement or cognitive impairment.Brain MRI showed cerebellar atrophy. >3 cases. Green

Created: 2 Sep 2019, 4:06 p.m. | Last Modified: 2 Sep 2019, 4:06 p.m.

Panel Version: 1.99

Mode of inheritance
BOTH monoallelic and biallelic, autosomal or pseudoautosomal

Phenotypes
Spinocerebellar ataxia 28; Spinocerebellar Ataxia, Dominant; Ataxia, spastic, 5, autosomal recessive; Dystonia; Spastic ataxia 5, autosomal recessive

Green List (high evidence)

Mean age at onset 30.7 years (range 6 to 60 years)

Created: 23 Jul 2019, 3:35 p.m. | Last Modified: 23 Jul 2019, 3:35 p.m.

Panel Version: 1.72

Mode of inheritance
BOTH monoallelic and biallelic, autosomal or pseudoautosomal

Phenotypes
Spinocerebellar ataxia 28; Spinocerebellar Ataxia, Dominant; Ataxia, spastic, 5, autosomal recessive; Dystonia; Spastic ataxia 5, autosomal recessive

Variants in this GENE are reported as part of current diagnostic practice

I don't know

Review and rating from Tracy Lester (Oxford Medical Genetics Laboratories Oxford University Hospitals NHS Foundation Trust) on behalf of Wessex and West Midlands GLH for GMS Neurology specialist test group. All the green and amber, except for the genes with triplet repeats, were reviewed.

Created: 2 Sep 2019, 4:46 p.m. | Last Modified: 2 Sep 2019, 4:46 p.m.

Panel Version: 1.101

Review and rating submitted by Nick Beauchamp (Sheffield Diagnostic genetics Service), on behalf of Yorkshire and North East GLH for GMS Neurology specialist test group.

Created: 23 Jul 2019, 3:51 p.m. | Last Modified: 23 Jul 2019, 3:51 p.m.

Panel Version: 1.74

Review and rating submitted byJames Polke (North Bristol NHS Trust), unless specified in the review comment, on behalf of London North GLH for GMS Neurology specialist test group.

Created: 23 Apr 2019, 5:35 p.m.

Green List (high evidence)