Brugada syndrome and cardiac sodium channel disease

Gene: SCN1B

Comment on phenotypes: This gene is also associated with Cardiac conduction defect, nonspecific (612838), Atrial fibrillation, familial, 13 (615377), Epileptic encephalopathy, early infantile, 52 (617350), Epilepsy, generalized, with febrile seizures plus, type 1 (604233)

Created: 2 Mar 2021, noon | Last Modified: 2 Mar 2021, noon

Panel Version: 2.23

Green List (high evidence)

Atrial fibrillation, familial, 13 (OMIM 615377), Brugada syndrome 5 (OMIM 612838), Cardiac conduction defect, nonspecific (OMIM 612838), Epilepsy, generalized, with febrile seizures plus, type 1 (OMIM 604233), Epileptic encephalopathy, early infantile, 52 (OMIM 617350 - AR).

Created: 25 Mar 2019, 4:30 p.m.

Literature evidence includes cosegregation and functional evidence. PMID:18464934. PMID:25253298. PMID:28878239

Created: 25 Mar 2019, 4:27 p.m.

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

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

Red List (low evidence)

Comment on list classification: Due to new expert reviews and disputed evidence for this gene-disease causation, this gene has been demoted from Green to Red.

Created: 27 Feb 2019, 10 a.m.

This gene was given a validity classification of Disputed by the ClinGen validity curation group and is reflected by providing a Red review here.The gene-disease summary was downloaded on 20th Feb 2019.For the full report and publications see the ClinGen Gene Validity Curation for each gene here: https://search.clinicalgenome.org/kb/gene-validity/10158

Created: 20 Feb 2019, 2:47 p.m.

This gene was part of an initial gene list collated by Matthew Edwards Royal Brompton Hospital sent 16th Jan 2019 on behalf of the London South GLH for review by the GMS Cardiology Specialist Group. Only gene symbol from the Royal Brompton gene panel was provided - suggested initial gene rating and evidence for inclusion not provided with the list.

Created: 20 Feb 2019, 2:17 p.m.

Mode of inheritance
Disputed

Phenotypes
Brugada syndrome 1; MONDO_0011001

Red List (low evidence)

Gene currently tested on Manchester cardiac gene panel. Only class 1-3 variants detected to date. 31 variants listed on HGMD (accessed 29/01/2019). ClinGen Knowledge Base: disputed association with Brugada syndrome (accessed 29/01/2019).

Created: 14 Feb 2019, 1:38 p.m.

Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

Phenotypes
Atrial fibrillation, familial, 13 (615377); Brugada syndrome 5 (612838); Cardiac conduction defect, nonspecific (612838); Epilepsy, generalized, with febrile seizures plus, type 1 (604233); Epileptic encephalopathy, early infantile, 52 (617350)

Publications

• 25253298
• 27761167

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

Comment when marking as ready: On Manchester diagnostic panel and DDG2P

Created: 11 Feb 2016, 11:22 a.m.

Red List (low evidence)

Small number of variants reported to be pathogenic on ClinVar detected in an array of different patient cohorts including AF BS epilepsy cardiomyopathy conduction defects and epileptic encephalopathy. PMID 29758173 reports lack of genotype or phenotype correlations in families with BS or SADS with previously thought to be pathogenic variants in SCN1B.

Created: 25 Jan 2019, 1:15 p.m.

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