Table 3. SCN
Mutation type |
Mutation site |
Protein change(segment) |
Proband's phenotype |
Transmitter's phenotype |
Affected generations |
Affected/Carriers |
Genomic
rearrangement |
dup exon 8-16* |
Dup SCN |
SMEI |
FS |
2 |
2/2 |
|
|
SMEI |
FS+ |
3 |
5/5 |
|
|
|
SMEI |
No symptom |
4 |
3/3 |
|
|
|
SMEI |
No symptom |
2 |
2/2 |
|
dup 2q24.3 * |
Dup SCN |
NIE |
No symptom |
2 |
1/1 |
|
Truncation |
c.412_413delAT |
I138FfsX11 (DIS1) |
SMEI |
NA (Paternal) |
|
|
|
c |
E181X(DIS2-S3) |
GEFS+ |
NA |
|
|
|
c |
E289X (DIS5-S6) |
SMEI |
Partial
epilepsy(Maternal) |
2 |
2/2 |
|
c.1118delT* |
C373fsx378
(DIS5-S6) |
SMEI |
FS+(Paternal) |
2 |
2/2 |
|
c.1537delG* |
E513fsX(DI-DII) |
SMEI |
SMEB(Paternal) |
2 |
1/1 |
|
c |
R542X (DI-DII) |
SMEI |
No
symptom(Maternal) |
2 |
2/2 |
|
c |
R580X (DI-DII) |
SMEI |
No
symptom(Maternal) |
2 |
2/2 |
|
c |
R712X (DI-DII) |
SMEI |
No
symptom(Maternal) |
2 |
1/1 |
|
c.2523_2524delGC |
T841fsx842 (DIIS3) |
SMEI |
EP(Paternal) |
2 |
2/2 |
|
c |
R862X(DIIS4) |
GEFS+ |
NA |
|
|
|
c.3878delA* |
D1293delfsx1299
(DIIIS3) |
SMEI |
Single
seizure(Paternal) |
2 |
1/1 |
|
c |
R1329X (DIIIS4) |
SMEI |
Migraine(Maternal) |
2 |
2/2 |
|
c |
S1516X(DIII-DIV
linker) |
SMEI |
NA (Paternal) |
|
|
|
c.5240_5241insAA* |
N1747fsX33(DIVS5-S6) |
SMEI |
FS(Maternal) |
2 |
2/2 |
|
c.5493delT* |
A1831fs25X(C-terminal) |
SMEI |
IGE(Maternal) |
2 |
2/2 |
|
c |
R1912X(C-terminal) |
SMEI |
No
symptom(Paternal) |
2 |
1/1 |
Splice
site |
c.265 |
ND (DIS3) |
GEFS+ |
NA (Maternal) |
|
|
|
c.602+ |
ND (DIS3) |
SMEI |
GEFS+(Paternal) |
2 |
2/2 |
|
c.965 |
ND (DIS5-S6) |
SMEI |
No
symptom(Paternal) |
2 |
2/2 |
|
c.1377+ |
ND (DI-DII) |
SMEI |
IGE(Paternal) |
2 |
1/1 |
|
c.1378 |
ND (DI-DII) |
SMEI |
No
symptom(Maternal) |
2 |
1/2 |
|
c.2177-11dupT |
ND(DI-DII) |
GEFS+ |
No symptom |
2 |
|
|
c.3550+ |
ND (DII-DIII) |
SMEI |
No
symptom(Maternal) |
2 |
2/2 |
|
c.3880 |
ND(IVS19) |
SME |
No
symptom(Paternal) |
|
|
|
c.4581+ |
ND (DIVS1) |
SMEI |
NA (Paternal) |
|
|
Missense |
c |
R27T (N-terminal) |
GEFS+ |
No
symptom(Paternal) |
2 |
1/2 |
|
c |
D45N(N-terminal) |
EA with FS+ |
FS+(Paternal) |
2 |
|
|
c.187T>C |
F |
SMEI |
No symptom(PaternaL) |
2 |
1/2 |
|
c.203T>C |
I68T (N-terminal) |
SMEB |
NA (Maternal) |
|
|
|
c |
R101Q(N-terminal) |
SMEI |
FS+(Maternal) |
2 |
3/3 |
|
c |
S |
SMEI |
NA(Paternal) |
|
|
|
c |
S |
FE(MCD) |
Unclassified EP |
2 |
2/2 |
|
c.371T>A* |
I124Q (DI S1) |
SMEI |
IGE(Maternal) |
2 |
1/1 |
|
c.434T>C |
M145T (DIS1) |
PEFS+ |
FS(Maternal) |
≥3 |
5/5 |
|
c |
D188V (DIS2-S3) |
GEFS+ |
FS+(Paternal) |
≥3 |
8/9 |
|
c.568T>C |
W190R (DIS3) |
SMEI |
No
symptom(Maternal) |
2 |
1/2 |
|
c |
N191Y (DIS3) |
SMEI |
IGE(Paternal) |
2 |
1/1 |
|
c |
L |
GEFS+ |
GEFS+(Paternal) |
4 |
9/9 |
|
c |
D194N (DIS3) |
SMEI |
GEFS+(Paternal) |
2 |
1/1 |
|
c.652T>C |
F |
PEFS+ |
GEFS+(Paternal&Maternal) |
2 |
5/5 |
|
c |
A239T (DIS4-S5) |
SMEB |
FS+(Paternal) |
≥3 |
2/2 |
|
c |
L263V (DIS5) |
EP+FHM |
NA |
2 |
5/5 |
|
c |
T297I (DIS5-S6) |
SMEI |
No
symptom(Maternal) |
2 |
2/2 |
|
c.940T>C |
W314R (DIS5-S6) |
MAE |
NA (Maternal) |
|
|
|
c |
Y |
SMEI |
FS+(Paternal) |
2 |
2/2 |
|
c |
R |
SMEB |
NA |
|
|
|
c |
R377Q (DIS5-S6) |
GEFS+ |
NA (Maternal) |
|
|
|
c.1162T>C |
Y388H (DIS5-S6) |
SMEI |
GEFS+(Paternal) |
≥3 |
10/10 |
|
c |
M400V (DIS6) |
SMEI |
NA (Biparental) |
|
|
|
c.1226T>G |
L409W(DIS6) |
SMEI |
NA(Maternal) |
|
|
|
c.1234T>A |
F412I(DIS6) |
SMEB |
No
symptom(Paternal) |
|
|
|
c |
R542E (DI-DII) |
GEFS+ |
IGE(Paternal) |
2 |
2/2 |
|
c |
N762D (DIIS1) |
SMEI |
NA (Paternal) |
|
|
|
c |
Y |
GEFS+ |
FS(Paternal) |
2 |
3/3 |
|
c |
T |
SMEI |
No
symptom(Maternal) |
2 |
1/2 |
|
c |
R |
GEFS+ |
FS(Paternal) |
≥3 |
7/7 |
|
c |
R859H(DIIS4) |
PEFS+ |
GEFS+(Paternal) |
2 |
2/2 |
|
c |
T |
PEFS+ |
FS(Paternal) |
≥3 |
10/10 |
|
c |
T875K(DIIS4) |
SME |
NA(Paternal) |
|
|
|
c.2626T>A |
L876I(DIIS4) |
SMEI |
NA(Maternal) |
|
|
|
c.2696T>C |
I899T(DIIS5) |
GEFS+ |
NA |
|
|
|
c |
N935H((DIIS5-S6) |
PEFS+ |
GEFS+(Paternal) |
2 |
2/2 |
|
c |
M967I (DIIS6) |
GEFS+ |
FS(Maternal) |
≥3 |
1/2 |
|
c |
M973V(DIIS6) |
CGE |
No
symptom(Paternal) |
2 |
1/2 |
|
c |
M976I(DIIS6) |
SMEI |
FS+(Paternal) |
2 |
3/3 |
|
c.3018T>G |
D1006E (DIIS6) |
unclassified |
NA (Maternal) |
|
|
|
c.3101T>C |
I1034T(DII-DIII) |
Autism |
No
symptom(Paternal) |
2 |
1/2 |
|
c.3112T>C |
F |
Autism |
No
symptom(Paternal) |
2 |
2/3 |
|
c |
S |
JME |
JME(Paternal) |
2 |
2/2 |
|
c |
T1174S(DII-DIII) |
MAE |
No
symptom(Maternal) |
2 |
1/2 |
|
c.3610T>C |
W1204R (DII-DIII) |
GEFS+ |
GEFS+(Paternal) |
≥3 |
5/5 |
|
c |
R1208K (DIIIS1) |
SMEB |
NA (Maternal) |
|
|
|
c |
L |
GEFS+ |
NA (Maternal) |
|
|
|
c |
K1249N(DIIIS1-S2) |
GEFS+ |
NA |
|
|
|
c |
T |
GEFS+ |
NA |
|
|
|
c |
K1270T (DIIIS2) |
PEFS+ |
GEFS+(Maternal) |
≥3 |
13/14 |
|
c.3820T>A |
Y1274N(DIIIS4) |
GEFS+ |
NA(Paternal) |
|
|
|
c |
E1308D(DIIIS3-S4) |
FS |
NA |
|
|
|
c |
V |
PEFS+ |
Unclassified
EP(Maternal) |
≥3 |
8/9 |
|
c |
V1366I (DIIIS5-S6) |
FS+(&myoclonic) |
GEFS+(Paternal) |
2 |
1/2 |
|
c.4101T>A |
N1367K (DIIIS5-S6) |
SMEI |
IGE(Paternal) |
2 |
1/1 |
|
c |
K1372E (DIIIS5-S6) |
GEFS+ |
FS+ (Paternal) |
≥3 |
14/17 |
|
c |
V |
PEFS+ |
GEFS+(Maternal) |
2 |
4/4 |
|
c |
G1382R (DIIIS5-S6) |
PEFS+ |
FS(Maternal) |
3 |
4/5 |
|
c |
A1406T (DIIIS5-S6) |
SMEI |
IGE(Paternal) |
2 |
2/2 |
|
c |
N1414D (DIIIS5-S6) |
GEFS+ |
NA (Paternal) |
|
|
|
c |
L |
SMEI |
NA (Maternal) |
|
|
|
c |
A1429S(DIIIS5-S6) |
ADNFLE |
ADNFLE(Paternal) |
|
|
|
c |
G1433V (DIIIS5-S6) |
SMEI |
NA (Paternal) |
|
|
|
c |
P1451T(DIIIS5-S6) |
SME |
No symptom(Paternal) |
2 |
1/1 |
|
c |
L1457Leu(DIIIS6) |
ADNFLE |
ADNFLE(Paternal) |
|
|
|
c |
Q1489K(DIII-DIV) |
FHM |
FHM(Maternal) |
≥3 |
13/13 |
|
c |
Q1489H(DIII-DIV) |
FHM + ERDB |
FHM(Maternal) |
|
5/5 |
|
c |
I |
FHM |
FHM(Paternal) |
4 |
|
|
c.4495T>C |
F |
FHM + ERDB |
FHM(Maternal) |
3 |
4/4 |
|
c.4541T>C |
L1514S(DIII-DIV) |
SMEI |
IGE(Maternal) |
≥3 |
1/1 |
|
c.4628T>C |
F1543S (DIVS1) |
SIMFE |
No symptom |
2 |
1/2 |
|
c |
R |
SMEI |
No
symptom(Maternal) |
2 |
1/2 |
|
c |
R1596H (DIVS2-S3) |
GEFS+ |
NA (Paternal) |
|
|
|
c |
V |
GEFS+ |
GEFS+(Maternal) |
2 |
2/2 |
|
c |
V1612I (DIVS3) |
NA |
NA (Paternal) |
|
|
|
c.4847T>C* |
I1616T (DIVS3) |
PEFS+ |
PEFS+(Paternal) |
2 |
1/1 |
|
c |
M1619V(DIVS3) |
IE |
NA(Maternal) |
|
|
|
c |
V |
SMEI |
NA |
|
|
|
c |
V |
SMEB |
NA(Maternal) |
|
|
|
c |
R1648H (DIVS4) |
PEFS+ |
NA |
≥3 |
5/5 |
|
c.4946T>A |
L1649Q(DIVS4) |
FHM |
FHM(Paternal) |
4 |
6/6 |
|
c |
I |
GEFS+ |
FS+(Maternal) |
2 |
4/4 |
|
c |
R |
SME |
FS(Maternal) |
≥3 |
4/4 |
|
c |
T1658R(DIVS4-S5) |
SMEI |
NA(Maternal) |
|
|
|
c |
T |
SMEI |
NA(Maternal) |
|
|
|
c |
F |
FHM |
FHM(Maternal) |
3 |
5/5 |
|
c.4991T>A |
M1664K (DIVS4-S5) |
SMEI |
FS(Maternal) |
≥3 |
4/4 |
|
c |
P |
SMEI |
No
symptom(Maternal) |
2 |
2/3 |
|
c |
P1668R(DIVS4-S5) |
SME |
FS(Maternal) |
2 |
1/1 |
|
c.5045T>C |
F1682S (DIVS5) |
SMEI |
FS(Paternal) |
2 |
2/2 |
|
c |
I |
unclassified |
NA (Maternal) |
|
|
|
c |
A1685V (DIVS5) |
PEFS+ |
PEFS+(Paternal) |
≥3 |
5/5 |
|
c.5060T>C |
F1687S (DIVS5) |
SMEB |
NA |
|
|
|
c |
T1709I (DIVS5-S6) |
SMEB |
GEFS(Maternal) |
2 |
2/2 |
|
c |
S1713N (DIVS5-S6) |
SMEI |
FS(Paternal) |
2 |
3/3 |
|
c |
P |
GEFS+ |
NA (Paternal) |
|
|
|
c |
D |
PEFS+ |
FS+(Paternal) |
3 |
4/4 |
|
c |
I |
SMEI |
SEHT(Paternal) |
2 |
1/1 |
|
c |
A1783T(DIVS6) |
SMEI |
GEFS+(Maternal) |
2 |
1/1 |
|
c |
E1795K(DIVS6) |
GEFS+ |
GEFS+(Paternal) |
2 |
5/5 |
|
c.5555T>C |
M1852T (C-terminal) |
SMEI |
FS+(Paternal) |
2 |
5/5 |
|
c |
V |
GEFS+ |
FS(Paternal) |
2 |
2/2 |
|
c |
D1866Y (C-terminal) |
GEFS+ |
GEFS+(Maternal) |
≥3 |
4/4 |
|
c.5600T>C |
I1867T (C-terminal) |
PEFS+ |
NA |
≥3 |
5/6 |
|
c |
Q1923R (C-terminal) |
PEFS+ |
FS(Paternal) |
2 |
3/3 |
|
c |
R |
GEFS+ |
GEFS+(Paternal) |
2 |
2/2 |
|
c.5864T>C |
I1955T (C-terminal) |
GEFS+ |
No symptom
(Paternal) |
2 |
1/2 |
|
c |
R1988W(C-terminal) |
EA with FS+ |
EA with
FS(Paternal) |
3 |
3/3 |
|
c.* |
3'UTR |
SMEI |
No
symptom(Maternal) |
|
1/2 |
Legend:
ADNFLE, autosomal
dominant nocturnal frontal lobe epilepsy; AGTCS, afebrile generalized tonic-clonic seizures; ASD,
autism spectrum disorder; BOE, benign occipital epilepsy; CGE, cryptogenic generalized epilepsy; EA with FS+, epilepsy-aphasia with
FS+; EE, epileptic encephalopathy; FE(MCDs), focal epilepsy(malformations of
cortical development); FHM,
familial hemiplegic migraine; FHM+ERDB, familial hemiplegic migraine +
elicited repetitive daily blindness; FS, febrile seizures; FS+, febrile seizures plus; GC, generalized
convulsions; GEFS+, generalized epilepsy with febrile seizures plus; IE, intractable epilepsy; IGE, idiopathic generalized epilepsy; IME,
intractable
myoclonic epilepsy; JME, juvenile myoclonic epilepsy; MAE, myoclonic-astatic epilepsy; NA, not available;
NIE, Neonatal-infantile epilepsy; PEFS+, partial epilepsy with febrile seizures
plus; PS, panayiotopoulos syndrome; Rasmussen, rasmussen encephalitis; SEHT, symptomatic epilepsy after head
trauma; SIMFE, Severe infantile multifocal epilepsy; SMEB, SMEI borderline; SMEI, severe myoclonic epilepsy in infancy;
Unclassified,
the epilepsy was not classified.
Copyright ©2014 Institute of Neuroscience and The Second Affiliated Hospital of Guangzhou Medical University
Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China
Collaborative Innovation Center for Neurogenetics and Channelopathies, Guangzhou 510260, China.