Paroxysmal central nervous system disorders

STR: CACNA1A_CAG

Red List (low evidence)

Chromosome: 19
GRCh37 Position: 13318673-13318711
GRCh38 Position: 13207859-13207897
Repeated Sequence: CAG
Normal Number of Repeats: < or = 18
Pathogenic Number of Repeats: = or > 20

CACNA1A (calcium voltage-gated channel subunit alpha1 A)
EnsemblGeneIds (GRCh38): ENSG00000141837
EnsemblGeneIds (GRCh37): ENSG00000141837
OMIM: 601011, Gene2Phenotype
CACNA1A is in 24 panels

2 reviews

Rebecca Foulger (Genomics England curator)

Red List (low evidence)

Comment on list classification: Demoted STR from Green to Red based on GLH review and a recent comment (September 30th 2019) from Robyn Labrum (University College London Hospitals) collated on behalf of London North GLH for the GMS Neurology specialist test group: Inappropriate phenotype. Better suited to ataxia panels, epilepsy or muscular dystrophy panel.
Created: 1 Oct 2019, 12:32 p.m. | Last Modified: 1 Oct 2019, 12:32 p.m.
Panel Version: 0.163
Review and rating from Robyn Labrum (University College London Hospitals) was collated (September 19th 2019) on behalf of London North GLH for the GMS Neurology specialist test group for clinical indication R66: Paroxysmal central nervous system disorders. Symbol submitted: CACNA1A_CAG. Suggested rating: ?; Comments provided: Triplet repeat. Primarily an ataxia gene.
Created: 1 Oct 2019, 10:28 a.m. | Last Modified: 1 Oct 2019, 10:28 a.m.
Panel Version: 0.157
Review and rating from Penny Clouston (Oxford Medical Genetics Laboratories, Oxford University Hospitals NHS Foundation Trust) was collated (September 19th 2019) on behalf of West Midlands, Oxford and Wessex GLH for the GMS Neurology specialist test group. Re-review of a subset of entities was conducted in September 2019 to reach a rating consensus for clinical indication R66: Paroxysmal central nervous system disorders. Symbol submitted: CACNA1A_CAG. Suggested rating: Red; Comments provided: None.
Created: 23 Sep 2019, 10:25 a.m. | Last Modified: 23 Sep 2019, 10:25 a.m.
Panel Version: 0.94

Louise Daugherty (Genomics England Curator)

Green List (high evidence)

Source PanelApp panels : Brain channelopathy v1.48
Sources: Expert list
Created: 11 Jan 2019, 5:03 p.m.

Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted

Phenotypes
Spinocerebellar ataxia 6 183086

Details

Name
CACNA1A_CAG
Chromosome
19
GRCh37 Coordinates
13318673-13318711
GRCh38 Coordinates
13207859-13207897
Repeated Sequence
CAG
Normal Number of Repeats: < or =
18
Pathogenic Number of Repeats: = or >
20
Mode of Inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
Phenotypes
  • Spinocerebellar ataxia 6 183086
Tags
STR
OMIM
601011
Clinvar variants
Variants in CACNA1A
Penetrance
None

History Filter Activity

1 Oct 2019, Gel status: 1

Entity classified by Genomics England curator

Rebecca Foulger (Genomics England curator)

Str: cacna1a_cag has been classified as Red List (Low Evidence).

11 Jan 2019, Gel status: 3

Entity classified by Genomics England curator

Louise Daugherty (Genomics England Curator)

Str: cacna1a_cag has been classified as Green List (High Evidence).

11 Jan 2019, Gel status: 1

Created, Added New Source, Added Tag, Set mode of inheritance, Set Phenotypes

Louise Daugherty (Genomics England Curator)

STR: CACNA1A_CAG was added STR: CACNA1A_CAG was added to Paroxysmal neurological disorders, pain disorders and sleep disorders. Sources: Expert list STR tags were added to STR: CACNA1A_CAG. Mode of inheritance for STR: CACNA1A_CAG was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Phenotypes for STR: CACNA1A_CAG were set to Spinocerebellar ataxia 6 183086 Review for STR: CACNA1A_CAG was set to GREEN