Variant Gene Disease Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs121917954
rs121917954
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE In contrast, two other GEFS+ mutations (A1685V and V1353L) and L986F, an SMEI-associated allele, exhibited complete loss of function. 14672992 2003
dbSNP: rs121918625
rs121918625
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE In contrast, two other GEFS+ mutations (A1685V and V1353L) and L986F, an SMEI-associated allele, exhibited complete loss of function. 14672992 2003
dbSNP: rs121918744
rs121918744
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE In contrast, two other GEFS+ mutations (A1685V and V1353L) and L986F, an SMEI-associated allele, exhibited complete loss of function. 14672992 2003
dbSNP: rs121918775
rs121918775
Entrez Id: 6323;101929680
Gene Symbol: SCN1A;SCN1A-AS1
SCN1A;SCN1A-AS1
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.020 GeneticVariation BEFREE The possibility of participation of ion selectivity dysfunction of the channel in the pathogenesis of SMEI was suggested by a mutation in the pore region (R946C) identified in a SMEI patient. 15277629 2004
dbSNP: rs121918793
rs121918793
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE Here we report the functional characterization of eight SCN1A mutations (G177E, I227S, R393H, Y426N, H939Q, C959R, delF1289, and T1909I) previously identified in SMEI probands. 17054685 2006
dbSNP: rs794726759
rs794726759
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.030 GeneticVariation BEFREE An inherited nonsense R1645X mutation in neuronal sodium channel alpha1-subunit gene in a Turkish patient with severe myoclonic epilepsy of infancy. 19809937 2009
dbSNP: rs121917935
rs121917935
Entrez Id: 6323;101929680
Gene Symbol: SCN1A;SCN1A-AS1
SCN1A;SCN1A-AS1
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE We describe a Roma/Gypsy family, where a missense mutation in SCN1A, p.D194N, is transmitted from a mosaic GEFS+ father to a child with Dravet syndrome. 20562086 2010
dbSNP: rs121918791
rs121918791
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE Similar selectivity was observed for ranolazine block of increased persistent current exhibited by Na(V) 1.1 channel mutations representing three distinct clinical syndromes, generalized epilepsy with febrile seizures plus (R1648H, T875M), severe myoclonic epilepsy of infancy (R1648C, F1661S) and familial hemiplegic migraine type 3 (L263V, Q1489K). 20735403 2010
dbSNP: rs121918809
rs121918809
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE These mutations were two missense mutations, p.V1612I and p.C1756G, in two patients with SMEI and SMEB, and one silent mutation, p.G1762G, in a patient with FS+ and afebrile partial seizures. 20452746 2010
dbSNP: rs121918775
rs121918775
Entrez Id: 6323;101929680
Gene Symbol: SCN1A;SCN1A-AS1
SCN1A;SCN1A-AS1
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.020 GeneticVariation BEFREE Therefore, we performed a biophysical analysis of three SCN1A missense mutations (R865G, R946C and R946H) we detected in six patients with DS. 21864321 2011
dbSNP: rs121917971
rs121917971
Entrez Id: 6323;101929680
Gene Symbol: SCN1A;SCN1A-AS1
SCN1A;SCN1A-AS1
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE Therefore, we performed a biophysical analysis of three SCN1A missense mutations (R865G, R946C and R946H) we detected in six patients with DS. 21864321 2011
dbSNP: rs121918799
rs121918799
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE Analysis of SCN1A revealed a heterozygous de novo frameshift mutation (c.4205_4208delGAAA) in the patient with DS, and a recurrent missense mutation (c.3521C>G) in that suffering from MAE. 21396429 2011
dbSNP: rs398123588
rs398123588
Entrez Id: 6323;101929680
Gene Symbol: SCN1A;SCN1A-AS1
SCN1A;SCN1A-AS1
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE However, the novel voltage sensor mutants R859H (GEFS+) and R865G (DS) produced sodium current densities similar to those in wild-type channels. 21864321 2011
dbSNP: rs121918624
rs121918624
Entrez Id: 6323;101929680
Gene Symbol: SCN1A;SCN1A-AS1
SCN1A;SCN1A-AS1
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE We studied the effect of two DS truncated Na(V)1.1 mutants, R222* and R1234*, on coexpressed wild-type Na(+) channels. 22150645 2012
dbSNP: rs727504136
rs727504136
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE We studied the effect of two DS truncated Na(V)1.1 mutants, R222* and R1234*, on coexpressed wild-type Na(+) channels. 22150645 2012
dbSNP: rs794726759
rs794726759
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.030 GeneticVariation BEFREE We generated iPSCs from a Dravet syndrome patient with a c.4933C>T substitution in SCN1A, which is predicted to result in truncation in the fourth homologous domain of the protein (p.R1645*). 23639079 2013
dbSNP: rs121918811
rs121918811
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.020 GeneticVariation BEFREE We generated iPSCs from a Dravet syndrome patient with a c.4933C>T substitution in SCN1A, which is predicted to result in truncation in the fourth homologous domain of the protein (p.R1645*). 23639079 2013
dbSNP: rs398123593
rs398123593
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE Postnatal day 15-21 heterozygous SCN1A-R1407X knock-in mice, expressing a human Dravet syndrome mutation, were used to investigate a possible cardiac phenotype. 24155976 2013
dbSNP: rs121917918
rs121917918
Entrez Id: 6323;101929680
Gene Symbol: SCN1A;SCN1A-AS1
SCN1A;SCN1A-AS1
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE The study supported the genetic diagnosis of affected children as Dravet syndrome possibly due to the combined effect of one clinically associated (rs121917918; p.R101Q) and one novel (p.I1576T) variants in SCN1A gene. 25986186 2015
dbSNP: rs121917993
rs121917993
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE Probands from those families even clinically diagnosed with atypical Dravet syndrome (DS), generalized epilepsy with febrile seizures plus (GEFS+), and focal epilepsy, had heterozygous p.Arg1596 His/Cys missense substitutions, c.4787G>T and c.4786C>T in the SCN1A gene. 26188943 2015
dbSNP: rs121918792
rs121918792
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE A different substitution (G1674R) at the same amino acid position, as well as two other SCN1A mutations found in this study, had previously been reported in Dravet syndrome. 26311622 2015
dbSNP: rs1490209867
rs1490209867
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE The study supported the genetic diagnosis of affected children as Dravet syndrome possibly due to the combined effect of one clinically associated (rs121917918; p.R101Q) and one novel (p.I1576T) variants in SCN1A gene. 25986186 2015
dbSNP: rs121918803
rs121918803
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.010 GeneticVariation BEFREE This 20-year-old man had infantile-onset epilepsy with the classical clinical features of Dravet syndrome and a de novo A1326P SCN1A mutation. 28233668 2017
dbSNP: rs794726759
rs794726759
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.030 GeneticVariation BEFREE As an in vitro model of this disease, we previously generated an induced pluripotent stem cell (iPSC) line from a patient with DS carrying a c.4933C>T (p.R1645*) substitution in SCN1A. 29453127 2018
dbSNP: rs121918811
rs121918811
Entrez Id: 6323;101929680;102724058
Gene Symbol: SCN1A;SCN1A-AS1;LOC102724058
SCN1A;SCN1A-AS1;LOC102724058
CUI: C0751122
Disease:
Infantile Severe Myoclonic Epilepsy
0.020 GeneticVariation BEFREE As an in vitro model of this disease, we previously generated an induced pluripotent stem cell (iPSC) line from a patient with DS carrying a c.4933C>T (p.R1645*) substitution in SCN1A. 29453127 2018