Adult onset neurodegenerative disorder
Gene: AFG3L2
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. GreenCreated: 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
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
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.
Phenotypes for gene: AFG3L2 were changed from Spinocerebellar ataxia 28; Spinocerebellar Ataxia, Dominant; Ataxia, spastic, 5, autosomal recessive; Dystonia; Spastic ataxia 5, autosomal recessive to Spinocerebellar ataxia 28, OMIM:610246; Ataxia, spastic, 5, autosomal recessive, OMIM:614487; Dystonia
Source Wessex and West Midlands GLH was added to AFG3L2.
Source Yorkshire and North East GLH was added to AFG3L2.
Source NHS GMS was added to AFG3L2.
Source London North GLH was added to AFG3L2.
Checked panel against panel constituents. Ready to promote to version 1
Mode of pathogenicity for gene: AFG3L2 was changed from to Other
Added phenotypes Dystonia for gene: AFG3L2
Added phenotypes Spinocerebellar ataxia 28; Spinocerebellar Ataxia, Dominant; Ataxia, spastic, 5, autosomal recessive for gene: AFG3L2
gene: AFG3L2 was added gene: AFG3L2 was added to Neurodegenerative disorders - adult onset. Sources: Expert Review Green Mode of inheritance for gene: AFG3L2 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Phenotypes for gene: AFG3L2 were set to Ataxia, spastic, 5, autosomal recessive; Spastic ataxia 5, autosomal recessive