Incidental Mutation 'R6417:Scn1a'
ID 518106
Institutional Source Beutler Lab
Gene Symbol Scn1a
Ensembl Gene ENSMUSG00000064329
Gene Name sodium channel, voltage-gated, type I, alpha
Synonyms Nav1.1
MMRRC Submission 044559-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R6417 (G1)
Quality Score 225.009
Status Validated
Chromosome 2
Chromosomal Location 66101125-66271181 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 66103542 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Threonine at position 1906 (I1906T)
Ref Sequence ENSEMBL: ENSMUSP00000107985 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000077489] [ENSMUST00000094951] [ENSMUST00000112366] [ENSMUST00000112371] [ENSMUST00000156865]
AlphaFold A2APX8
Predicted Effect probably damaging
Transcript: ENSMUST00000077489
AA Change: I1895T

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000076697
Gene: ENSMUSG00000064329
AA Change: I1895T

DomainStartEndE-ValueType
low complexity region 23 52 N/A INTRINSIC
Pfam:Ion_trans 156 422 5.4e-77 PFAM
low complexity region 431 466 N/A INTRINSIC
Pfam:DUF3451 484 708 5.5e-73 PFAM
Pfam:Ion_trans 791 980 6.8e-47 PFAM
Pfam:Na_trans_assoc 995 1217 1.2e-74 PFAM
Pfam:Ion_trans 1243 1471 1.1e-56 PFAM
PDB:1BYY|A 1473 1525 4e-31 PDB
Pfam:Ion_trans 1564 1774 1.1e-51 PFAM
Pfam:PKD_channel 1623 1781 3.9e-7 PFAM
low complexity region 1826 1838 N/A INTRINSIC
IQ 1903 1925 1.65e-2 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000094951
AA Change: I1878T

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000092558
Gene: ENSMUSG00000064329
AA Change: I1878T

DomainStartEndE-ValueType
low complexity region 23 52 N/A INTRINSIC
Pfam:Ion_trans 156 422 5.3e-77 PFAM
low complexity region 431 466 N/A INTRINSIC
Pfam:DUF3451 484 691 2e-62 PFAM
Pfam:Ion_trans 774 963 6.7e-47 PFAM
Pfam:Na_trans_assoc 978 1200 1.2e-74 PFAM
Pfam:Ion_trans 1226 1454 1e-56 PFAM
PDB:1BYY|A 1456 1508 4e-31 PDB
Pfam:Ion_trans 1547 1757 1.1e-51 PFAM
Pfam:PKD_channel 1606 1764 3.8e-7 PFAM
low complexity region 1809 1821 N/A INTRINSIC
IQ 1886 1908 1.65e-2 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000112366
AA Change: I1906T

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000107985
Gene: ENSMUSG00000064329
AA Change: I1906T

DomainStartEndE-ValueType
low complexity region 23 52 N/A INTRINSIC
Pfam:Ion_trans 127 434 2.8e-82 PFAM
Pfam:Na_trans_cytopl 502 718 2e-91 PFAM
Pfam:Ion_trans 767 1002 6.5e-57 PFAM
Pfam:Na_trans_assoc 1006 1213 1.2e-60 PFAM
Pfam:Ion_trans 1217 1493 3.3e-67 PFAM
Pfam:Ion_trans 1540 1797 6.3e-56 PFAM
Pfam:PKD_channel 1637 1791 1.1e-6 PFAM
low complexity region 1837 1849 N/A INTRINSIC
IQ 1914 1936 1.65e-2 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000112371
AA Change: I1895T

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000107990
Gene: ENSMUSG00000064329
AA Change: I1895T

DomainStartEndE-ValueType
low complexity region 23 52 N/A INTRINSIC
Pfam:Ion_trans 156 422 5.4e-77 PFAM
low complexity region 431 466 N/A INTRINSIC
Pfam:DUF3451 484 708 5.5e-73 PFAM
Pfam:Ion_trans 791 980 6.8e-47 PFAM
Pfam:Na_trans_assoc 995 1217 1.2e-74 PFAM
Pfam:Ion_trans 1243 1471 1.1e-56 PFAM
PDB:1BYY|A 1473 1525 4e-31 PDB
Pfam:Ion_trans 1564 1774 1.1e-51 PFAM
Pfam:PKD_channel 1623 1781 3.9e-7 PFAM
low complexity region 1826 1838 N/A INTRINSIC
IQ 1903 1925 1.65e-2 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000156865
SMART Domains Protein: ENSMUSP00000144633
Gene: ENSMUSG00000064329

DomainStartEndE-ValueType
Pfam:Na_trans_assoc 1 182 2.2e-44 PFAM
Pfam:Ion_trans 186 462 1.3e-66 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000200839
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.6%
  • 10x: 97.8%
  • 20x: 92.8%
Validation Efficiency 97% (30/31)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Voltage-dependent sodium channels are heteromeric complexes that regulate sodium exchange between intracellular and extracellular spaces and are essential for the generation and propagation of action potentials in muscle cells and neurons. Each sodium channel is composed of a large pore-forming, glycosylated alpha subunit and two smaller beta subunits. This gene encodes a sodium channel alpha subunit, which has four homologous domains, each of which contains six transmembrane regions. Allelic variants of this gene are associated with generalized epilepsy with febrile seizures and epileptic encephalopathy. Alternative splicing results in multiple transcript variants. The RefSeq Project has decided to create four representative RefSeq records. Three of the transcript variants are supported by experimental evidence and the fourth contains alternate 5' untranslated exons, the exact combination of which have not been experimentally confirmed for the full-length transcript. [provided by RefSeq, Oct 2015]
PHENOTYPE: Homozygous null mice show postnatal lethality, seizures and behavioral deficits whereas heterozygotes die prematurely with seizures and abnormal electrophysiology. In addition, knock-in mice exhibit increased susceptibility to febrile and flurothyl-induced seizures, and reduced inhibitory signaling. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 30 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca15 A G 7: 119,996,351 (GRCm39) K1426E possibly damaging Het
Abra C T 15: 41,729,452 (GRCm39) R316H probably benign Het
Adam7 T A 14: 68,742,070 (GRCm39) T729S probably benign Het
Arhgef17 A G 7: 100,579,269 (GRCm39) S560P probably damaging Het
Asb13 G A 13: 3,693,574 (GRCm39) V111I probably damaging Het
Eif2ak2 A C 17: 79,164,048 (GRCm39) L439R probably damaging Het
Lrrk2 C T 15: 91,696,549 (GRCm39) R2446C probably benign Het
Map3k10 A G 7: 27,362,709 (GRCm39) F459S probably damaging Het
Med1 T C 11: 98,048,054 (GRCm39) D914G probably damaging Het
Or4d10 T G 19: 12,051,324 (GRCm39) K224T probably benign Het
Or5b24 A C 19: 12,912,584 (GRCm39) T161P probably damaging Het
Or8b39 T A 9: 37,996,890 (GRCm39) S253T probably benign Het
Or8b41 T G 9: 38,054,611 (GRCm39) L55R probably damaging Het
Or8k38 A T 2: 86,488,510 (GRCm39) C97* probably null Het
Pkd1l2 C T 8: 117,740,638 (GRCm39) C2153Y probably damaging Het
Plk5 T C 10: 80,199,906 (GRCm39) V471A probably benign Het
Slc16a12 T C 19: 34,650,097 (GRCm39) probably null Het
Slc25a23 T C 17: 57,359,780 (GRCm39) I324V probably damaging Het
Sord A T 2: 122,094,602 (GRCm39) K330M possibly damaging Het
Srp54b T A 12: 55,296,855 (GRCm39) F184L probably damaging Het
St3gal1 A G 15: 66,983,195 (GRCm39) V187A possibly damaging Het
Tcte1 A G 17: 45,846,056 (GRCm39) E220G probably damaging Het
Tfrc C T 16: 32,449,057 (GRCm39) T732I probably damaging Het
Tnrc6a A G 7: 122,770,297 (GRCm39) T696A probably benign Het
Ttn A G 2: 76,542,619 (GRCm39) Y33456H possibly damaging Het
Unc45a C G 7: 79,989,400 (GRCm39) E23Q probably benign Het
Urb2 C T 8: 124,773,938 (GRCm39) R1490W probably damaging Het
Wdr64 A T 1: 175,553,956 (GRCm39) D162V probably damaging Het
Zfp959 G A 17: 56,205,094 (GRCm39) G377D probably damaging Het
Zswim3 G A 2: 164,662,653 (GRCm39) V378M probably damaging Het
Other mutations in Scn1a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00513:Scn1a APN 2 66,165,875 (GRCm39) critical splice acceptor site probably null
IGL00650:Scn1a APN 2 66,111,137 (GRCm39) missense probably damaging 1.00
IGL00658:Scn1a APN 2 66,116,382 (GRCm39) missense probably damaging 1.00
IGL00823:Scn1a APN 2 66,155,279 (GRCm39) missense probably benign 0.04
IGL00907:Scn1a APN 2 66,158,141 (GRCm39) missense probably damaging 1.00
IGL01339:Scn1a APN 2 66,156,304 (GRCm39) missense probably benign 0.09
IGL01401:Scn1a APN 2 66,119,455 (GRCm39) missense probably damaging 1.00
IGL01503:Scn1a APN 2 66,152,687 (GRCm39) missense probably damaging 1.00
IGL01575:Scn1a APN 2 66,103,580 (GRCm39) missense probably damaging 1.00
IGL01598:Scn1a APN 2 66,132,829 (GRCm39) missense possibly damaging 0.63
IGL01613:Scn1a APN 2 66,116,281 (GRCm39) missense probably damaging 1.00
IGL01796:Scn1a APN 2 66,162,645 (GRCm39) splice site probably benign
IGL02079:Scn1a APN 2 66,153,704 (GRCm39) missense probably benign 0.14
IGL02171:Scn1a APN 2 66,103,543 (GRCm39) missense probably damaging 1.00
IGL02335:Scn1a APN 2 66,108,005 (GRCm39) missense possibly damaging 0.93
IGL02406:Scn1a APN 2 66,156,380 (GRCm39) missense possibly damaging 0.88
IGL02436:Scn1a APN 2 66,181,497 (GRCm39) missense probably benign 0.01
IGL02507:Scn1a APN 2 66,108,157 (GRCm39) missense probably damaging 1.00
IGL02646:Scn1a APN 2 66,129,962 (GRCm39) splice site probably null
IGL02729:Scn1a APN 2 66,129,994 (GRCm39) missense probably damaging 1.00
IGL02740:Scn1a APN 2 66,148,421 (GRCm39) missense probably benign 0.00
IGL02740:Scn1a APN 2 66,155,106 (GRCm39) missense probably damaging 1.00
IGL02752:Scn1a APN 2 66,161,756 (GRCm39) missense probably damaging 1.00
IGL02815:Scn1a APN 2 66,155,202 (GRCm39) missense probably damaging 1.00
IGL03163:Scn1a APN 2 66,148,418 (GRCm39) missense probably benign 0.00
IGL03229:Scn1a APN 2 66,130,057 (GRCm39) missense probably damaging 1.00
IGL03286:Scn1a APN 2 66,107,920 (GRCm39) missense probably damaging 0.99
IGL03393:Scn1a APN 2 66,148,362 (GRCm39) missense probably benign 0.19
BB008:Scn1a UTSW 2 66,148,156 (GRCm39) missense probably damaging 0.99
BB018:Scn1a UTSW 2 66,148,156 (GRCm39) missense probably damaging 0.99
PIT4791001:Scn1a UTSW 2 66,103,626 (GRCm39) missense probably benign 0.18
R0053:Scn1a UTSW 2 66,130,119 (GRCm39) missense probably benign 0.05
R0053:Scn1a UTSW 2 66,130,119 (GRCm39) missense probably benign 0.05
R0107:Scn1a UTSW 2 66,154,977 (GRCm39) missense probably benign 0.07
R0141:Scn1a UTSW 2 66,119,406 (GRCm39) missense probably damaging 1.00
R0485:Scn1a UTSW 2 66,104,269 (GRCm39) missense probably damaging 0.98
R0517:Scn1a UTSW 2 66,132,751 (GRCm39) missense possibly damaging 0.88
R0532:Scn1a UTSW 2 66,148,167 (GRCm39) missense probably damaging 1.00
R0746:Scn1a UTSW 2 66,181,470 (GRCm39) missense probably benign 0.25
R0755:Scn1a UTSW 2 66,151,379 (GRCm39) missense probably damaging 1.00
R0830:Scn1a UTSW 2 66,130,128 (GRCm39) missense probably damaging 1.00
R0846:Scn1a UTSW 2 66,155,099 (GRCm39) missense probably benign 0.43
R0918:Scn1a UTSW 2 66,153,651 (GRCm39) splice site probably null
R1055:Scn1a UTSW 2 66,168,340 (GRCm39) missense probably benign 0.08
R1432:Scn1a UTSW 2 66,152,773 (GRCm39) missense probably damaging 1.00
R1497:Scn1a UTSW 2 66,162,631 (GRCm39) missense probably damaging 1.00
R1512:Scn1a UTSW 2 66,161,629 (GRCm39) missense possibly damaging 0.82
R1525:Scn1a UTSW 2 66,149,806 (GRCm39) nonsense probably null
R1567:Scn1a UTSW 2 66,103,675 (GRCm39) missense probably damaging 1.00
R1702:Scn1a UTSW 2 66,148,567 (GRCm39) missense probably damaging 1.00
R1744:Scn1a UTSW 2 66,152,620 (GRCm39) missense probably benign 0.06
R1834:Scn1a UTSW 2 66,154,961 (GRCm39) missense probably benign 0.00
R1834:Scn1a UTSW 2 66,154,960 (GRCm39) missense probably benign 0.04
R1860:Scn1a UTSW 2 66,148,326 (GRCm39) missense probably damaging 0.99
R1871:Scn1a UTSW 2 66,148,369 (GRCm39) missense probably damaging 0.98
R1909:Scn1a UTSW 2 66,161,696 (GRCm39) missense possibly damaging 0.58
R1967:Scn1a UTSW 2 66,158,769 (GRCm39) missense probably damaging 1.00
R1976:Scn1a UTSW 2 66,161,615 (GRCm39) missense probably benign 0.02
R2291:Scn1a UTSW 2 66,119,312 (GRCm39) missense probably benign 0.44
R2302:Scn1a UTSW 2 66,108,089 (GRCm39) missense probably damaging 1.00
R2367:Scn1a UTSW 2 66,158,023 (GRCm39) missense probably damaging 1.00
R2418:Scn1a UTSW 2 66,104,187 (GRCm39) missense probably damaging 0.98
R2517:Scn1a UTSW 2 66,104,176 (GRCm39) missense probably damaging 1.00
R2568:Scn1a UTSW 2 66,103,813 (GRCm39) missense probably damaging 1.00
R3083:Scn1a UTSW 2 66,129,981 (GRCm39) missense probably damaging 1.00
R3903:Scn1a UTSW 2 66,148,476 (GRCm39) missense probably benign 0.08
R3909:Scn1a UTSW 2 66,104,332 (GRCm39) missense probably damaging 1.00
R3916:Scn1a UTSW 2 66,107,957 (GRCm39) missense probably damaging 1.00
R3935:Scn1a UTSW 2 66,158,120 (GRCm39) missense probably damaging 0.99
R3936:Scn1a UTSW 2 66,158,120 (GRCm39) missense probably damaging 0.99
R4043:Scn1a UTSW 2 66,156,380 (GRCm39) missense possibly damaging 0.60
R4429:Scn1a UTSW 2 66,181,329 (GRCm39) missense possibly damaging 0.77
R4495:Scn1a UTSW 2 66,111,146 (GRCm39) critical splice acceptor site probably null
R4662:Scn1a UTSW 2 66,181,332 (GRCm39) missense probably benign 0.23
R4834:Scn1a UTSW 2 66,158,866 (GRCm39) nonsense probably null
R4873:Scn1a UTSW 2 66,158,820 (GRCm39) missense possibly damaging 0.92
R4875:Scn1a UTSW 2 66,158,820 (GRCm39) missense possibly damaging 0.92
R5099:Scn1a UTSW 2 66,108,145 (GRCm39) missense probably damaging 1.00
R5255:Scn1a UTSW 2 66,108,013 (GRCm39) missense probably damaging 0.99
R5435:Scn1a UTSW 2 66,103,878 (GRCm39) missense probably damaging 1.00
R5449:Scn1a UTSW 2 66,151,346 (GRCm39) missense probably damaging 0.96
R5519:Scn1a UTSW 2 66,162,557 (GRCm39) missense probably damaging 1.00
R5541:Scn1a UTSW 2 66,154,977 (GRCm39) missense probably benign 0.07
R5556:Scn1a UTSW 2 66,155,141 (GRCm39) missense probably benign 0.00
R5587:Scn1a UTSW 2 66,103,425 (GRCm39) missense probably benign 0.01
R5972:Scn1a UTSW 2 66,181,454 (GRCm39) missense possibly damaging 0.65
R5992:Scn1a UTSW 2 66,165,800 (GRCm39) missense probably damaging 1.00
R6195:Scn1a UTSW 2 66,107,962 (GRCm39) missense possibly damaging 0.59
R6233:Scn1a UTSW 2 66,107,962 (GRCm39) missense possibly damaging 0.59
R6328:Scn1a UTSW 2 66,103,660 (GRCm39) missense probably damaging 1.00
R6420:Scn1a UTSW 2 66,103,542 (GRCm39) missense probably damaging 1.00
R6421:Scn1a UTSW 2 66,103,271 (GRCm39) missense probably damaging 1.00
R6461:Scn1a UTSW 2 66,156,466 (GRCm39) missense probably null 0.01
R6701:Scn1a UTSW 2 66,168,304 (GRCm39) missense probably damaging 0.99
R6717:Scn1a UTSW 2 66,162,631 (GRCm39) missense probably damaging 1.00
R6834:Scn1a UTSW 2 66,158,086 (GRCm39) missense probably damaging 1.00
R6918:Scn1a UTSW 2 66,162,557 (GRCm39) missense probably damaging 1.00
R6953:Scn1a UTSW 2 66,149,813 (GRCm39) missense probably damaging 1.00
R6996:Scn1a UTSW 2 66,118,075 (GRCm39) missense probably damaging 1.00
R7022:Scn1a UTSW 2 66,148,243 (GRCm39) missense probably damaging 1.00
R7109:Scn1a UTSW 2 66,181,286 (GRCm39) missense possibly damaging 0.62
R7115:Scn1a UTSW 2 66,154,962 (GRCm39) nonsense probably null
R7239:Scn1a UTSW 2 66,108,000 (GRCm39) splice site probably null
R7434:Scn1a UTSW 2 66,103,389 (GRCm39) missense probably benign
R7646:Scn1a UTSW 2 66,118,102 (GRCm39) missense possibly damaging 0.93
R7711:Scn1a UTSW 2 66,134,004 (GRCm39) missense probably benign
R7879:Scn1a UTSW 2 66,116,349 (GRCm39) nonsense probably null
R7931:Scn1a UTSW 2 66,148,156 (GRCm39) missense probably damaging 0.99
R7962:Scn1a UTSW 2 66,158,786 (GRCm39) missense probably damaging 1.00
R8025:Scn1a UTSW 2 66,148,557 (GRCm39) missense probably benign 0.02
R8055:Scn1a UTSW 2 66,149,845 (GRCm39) missense probably damaging 1.00
R8095:Scn1a UTSW 2 66,132,809 (GRCm39) missense possibly damaging 0.93
R8167:Scn1a UTSW 2 66,155,182 (GRCm39) missense probably damaging 0.98
R8339:Scn1a UTSW 2 66,116,373 (GRCm39) missense probably damaging 1.00
R8363:Scn1a UTSW 2 66,152,601 (GRCm39) missense probably damaging 1.00
R8516:Scn1a UTSW 2 66,156,478 (GRCm39) missense possibly damaging 0.79
R8559:Scn1a UTSW 2 66,118,077 (GRCm39) missense probably damaging 1.00
R8726:Scn1a UTSW 2 66,133,983 (GRCm39) missense probably benign
R8733:Scn1a UTSW 2 66,154,944 (GRCm39) missense probably benign
R8779:Scn1a UTSW 2 66,181,257 (GRCm39) critical splice donor site probably benign
R8841:Scn1a UTSW 2 66,156,466 (GRCm39) missense probably benign 0.09
R8916:Scn1a UTSW 2 66,108,127 (GRCm39) missense probably damaging 1.00
R8919:Scn1a UTSW 2 66,168,330 (GRCm39) missense probably benign 0.16
R9040:Scn1a UTSW 2 66,148,245 (GRCm39) missense probably damaging 0.99
R9086:Scn1a UTSW 2 66,181,358 (GRCm39) missense probably benign 0.01
R9176:Scn1a UTSW 2 66,103,689 (GRCm39) missense probably damaging 1.00
R9228:Scn1a UTSW 2 66,130,099 (GRCm39) missense probably benign 0.10
R9275:Scn1a UTSW 2 66,130,026 (GRCm39) missense probably damaging 1.00
R9365:Scn1a UTSW 2 66,148,465 (GRCm39) missense probably benign 0.10
R9478:Scn1a UTSW 2 66,156,493 (GRCm39) missense probably benign 0.01
R9560:Scn1a UTSW 2 66,158,131 (GRCm39) missense probably damaging 1.00
R9608:Scn1a UTSW 2 66,152,687 (GRCm39) missense probably benign 0.02
R9624:Scn1a UTSW 2 66,153,766 (GRCm39) missense probably benign
Z1176:Scn1a UTSW 2 66,156,472 (GRCm39) missense possibly damaging 0.92
Z1177:Scn1a UTSW 2 66,155,296 (GRCm39) critical splice acceptor site probably null
Predicted Primers PCR Primer
(F):5'- GCTGTGGACATTGTCAGGTCAG -3'
(R):5'- TTCAGCTCATTGCCATGGAC -3'

Sequencing Primer
(F):5'- CAGGTCAGTTTTCTCCGTAATAGAG -3'
(R):5'- ATTGCCATGGACCTGCC -3'
Posted On 2018-05-24