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| Mendeliome v0.6016 | FGF13 |
Zornitza Stark gene: FGF13 was added gene: FGF13 was added to Mendeliome. 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 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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| Mendeliome v0.5196 | SCN8A | Zornitza Stark Marked gene: SCN8A as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5196 | SCN8A | Zornitza Stark Gene: scn8a has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5196 | SCN8A | Zornitza Stark Phenotypes for gene: SCN8A were changed from to Developmental and epileptic encephalopathy 13, MIM#614558, dominant and recessive; Myoclonus, familial, 2, MIM# 618364; paroxysmal kinesigenic dyskinesias; Cognitive impairment with or without cerebellar ataxia, MIM# 614306 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5195 | SCN8A | Zornitza Stark Publications for gene: SCN8A were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5194 | SCN8A | Zornitza Stark Mode of pathogenicity for gene: SCN8A was changed from to Other | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5193 | SCN8A | Zornitza Stark Mode of inheritance for gene: SCN8A was changed from Unknown to BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5192 | SCN8A | Zornitza Stark reviewed gene: SCN8A: Rating: GREEN; Mode of pathogenicity: Other; Publications: 31625145, 29726066, 27098556, 28702509, 16236810, 31904124, 31887642, 31675620; Phenotypes: Developmental and epileptic encephalopathy 13, MIM#614558, dominant and recessive, Myoclonus, familial, 2, MIM# 618364, paroxysmal kinesigenic dyskinesias, Cognitive impairment with or without cerebellar ataxia, MIM# 614306; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5180 | SCN8A | Elena Savva reviewed gene: SCN8A: Rating: GREEN; Mode of pathogenicity: Other; Publications: PMID 30615093, 31904124; Phenotypes: ?Myoclonus, familial, 2 618364, Cognitive impairment with or without cerebellar ataxia 614306, Epileptic encephalopathy, early infantile, 13 614558, Seizures, benign familial infantile, 5 617080; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.0 | SCN8A |
Zornitza Stark gene: SCN8A was added gene: SCN8A was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services Mode of inheritance for gene: SCN8A was set to Unknown |
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