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Intellectual disability - microarray and sequencing v3.1514 | SCN8A | Arina Puzriakova Tag for-review was removed from gene: SCN8A. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.1510 | SCN8A | Sarah Leigh commented on gene: SCN8A: Just 2 families reported with possible AR inheritance: v rare - all het parents seem to have features so prob ok to keep as monoallelic only (source NHS Genomic Medicine Service). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.1510 | SCN8A | Sarah Leigh commented on gene: SCN8A: After NHS Genomic Medicine Service consideration, the mode of inheritance of this gene has not been changed | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.1137 | SCN8A | Arina Puzriakova Phenotypes for gene: SCN8A were changed from ?Cognitive impairment with or without cerebellar ataxia,614306; Epileptic encephalopathy, early infantile,614558; Seizures, benign familial infantile,617080 to Cognitive impairment with or without cerebellar ataxia, OMIM:614306; Developmental and epileptic encephalopathy 13, OMIM:614558 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.704 | SCN8A | Ivone Leong Added comment: Comment on mode of inheritance: MOI was changed back from "Both monoallelic and biallelic" to "Monoallelic", which reflects the original MOI of the signed off panel (version 3.2). The MOI will be changed back to "Both monoallelic and biallelic" after the panel has been reviewed. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.704 | SCN8A | Ivone Leong Mode of inheritance for gene: SCN8A was changed from BOTH monoallelic and biallelic, autosomal or pseudoautosomal to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.694 | FGF13 |
Zornitza Stark gene: FGF13 was added gene: FGF13 was added to Intellectual disability. Sources: Literature Mode of inheritance for gene: FGF13 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: FGF13 were set to 33245860 Phenotypes for gene: FGF13 were set to Intellectual disability; epilepsy Mode of pathogenicity for gene: FGF13 was set to Other Review for gene: FGF13 was set to GREEN gene: FGF13 was marked as current diagnostic Added comment: Two sibling pairs and three unrelated males reported who presented in infancy with intractable focal seizures and severe developmental delay. The variants were located in the N-terminal domain of the A isoform of FGF13/FHF2 (FHF2A). The X-linked FHF2 gene (also known as FGF13) has alternative first exons which produce multiple protein isoforms that differ in their N-terminal sequence. The variants were located at highly conserved residues in the FHF2A inactivation particle that competes with the intrinsic fast inactivation mechanism of Nav channels. Functional characterization of mutant FHF2A co-expressed with wild-type Nav1.6 (SCN8A) revealed that mutant FHF2A proteins lost the ability to induce rapid-onset, long-term blockade of the channel while retaining pro-excitatory properties. These gain-of-function effects are likely to increase neuronal excitability consistent with the epileptic potential of FHF2 variants. Sources: Literature |
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Intellectual disability - microarray and sequencing v3.483 | SCN8A | Arina Puzriakova Tag for-review tag was added to gene: SCN8A. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.483 | SCN8A | Arina Puzriakova commented on gene: SCN8A | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.23 | SCN8A | Sarah Leigh Added comment: Comment on mode of pathogenicity: Based on report in PMID 31625145, reporting biallelic loss of function SCN8A variants in three cases in two families with severe developmental and epileptic encephalopathy. This differs from the previosly reported gain of function monoallelic variants (PMID 24194747;22365152). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.23 | SCN8A | Sarah Leigh Mode of pathogenicity for gene: SCN8A was changed from to Other | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.22 | SCN8A | Sarah Leigh Added comment: Comment on mode of inheritance: Based on report in PMID 31625145, reporting biallelic loss of function SCN8A variants in three cases in two families with severe developmental and epileptic encephalopathy. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.22 | SCN8A | Sarah Leigh Mode of inheritance for gene: SCN8A was changed from MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted to BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.21 | SCN8A | Sarah Leigh Phenotypes for gene: SCN8A were changed from Cognitive impairment with or without cerebellar ataxia, 614306Epileptic encephalopathy, early infantile, 13, 614558; COGNITIVE IMPAIRMENT WITH OR WITHOUT CEREBELLAR ATAXIA to ?Cognitive impairment with or without cerebellar ataxia,614306; Epileptic encephalopathy, early infantile,614558; Seizures, benign familial infantile,617080 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v3.20 | SCN8A | Sarah Leigh Publications for gene: SCN8A were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing v2.468 | SCN8A | Louise Daugherty Source Victorian Clinical Genetics Services was added to SCN8A. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing | SCN8A | BRIDGE consortium edited their review of SCN8A | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing | SCN8A | BRIDGE consortium edited their review of SCN8A | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intellectual disability - microarray and sequencing | SCN8A | BRIDGE consortium reviewed SCN8A |