Hereditary ataxia with onset in adulthood
Gene: CACNA1A
EA2 and SCA6Created: 27 Apr 2019, 7:39 p.m.
Review and rating submitted by James Polke (Neurogenetics Laboratory, Institute of Neurology, London) on behalf of London North GLH for GMS Neurology specialist test group
Created: 27 Apr 2019, 8:55 p.m.
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.Created: 15 Apr 2019, 10:21 a.m.
EA2 generally associated with haploinsufficient variants while FHM +/- cerebellar ataxia associated with a number of missense variants. SCA6 is a result of CAG expansions in terminal exonCreated: 15 Apr 2019, 10:06 a.m.
Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes
Episodic ataxia type 2, 108500, Familial hemiplegic migraine 1, 141500, SCA6, 183086
Variants in this GENE are reported as part of current diagnostic practice
Phenotypes for gene: CACNA1A were changed from SCA6, 183086; familial hemiplegic migraine type 1, 141500; Episodic ataxia, type 2; Spinocerebellar ataxia 6; Familial hemiplegic migraine 1, 141500; Episodic ataxia type 2, 108500; Migraine, familial hemiplegic, 1, with progressive cerebellar ataxia; episodic ataxia type 2 (EA2),108500 to Episodic ataxia, type 2, OMIM:108500; Migraine, familial hemiplegic, 1, with progressive cerebellar ataxia, OMIM:141500
Source London North GMS was added to CACNA1A.
Added phenotypes Episodic ataxia type 2, 108500; SCA6, 183086; Familial hemiplegic migraine 1, 141500 for gene: CACNA1A
Source NHS GMS was added to CACNA1A.
Source Wessex and West Midlands GLH was added to CACNA1A.
Checked panel against panel constituents. Ready to promote to version 1.
Tag treatable tag was added to gene: CACNA1A.
Tag nucleotide-repeat-expansion tag was added to gene: CACNA1A.
gene: CACNA1A was added gene: CACNA1A was added to Hereditary ataxia - adult onset. Sources: Hereditary ataxia v1.148,Brain channelopathy v1.46,Expert Review Green Mode of inheritance for gene: CACNA1A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CACNA1A were set to 17575281; 21734179 Phenotypes for gene: CACNA1A were set to Spinocerebellar ataxia 6; familial hemiplegic migraine type 1, 141500; episodic ataxia type 2 (EA2),108500; Episodic ataxia, type 2; Migraine, familial hemiplegic, 1, with progressive cerebellar ataxia