Incidental Mutation 'R1164:Scn8a'
ID 100855
Institutional Source Beutler Lab
Gene Symbol Scn8a
Ensembl Gene ENSMUSG00000023033
Gene Name sodium channel, voltage-gated, type VIII, alpha
Synonyms nmf335, nmf58, NMF335, C630029C19Rik, nur14, mnd2, seal, mnd-2, nmf2, med, ataxia 3, NaCh6, Nav1.6, motor end-plate disease
MMRRC Submission 039237-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.790) question?
Stock # R1164 (G1)
Quality Score 225
Status Not validated
Chromosome 15
Chromosomal Location 100767739-100943819 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 100938043 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Cysteine to Tyrosine at position 1804 (C1804Y)
Ref Sequence ENSEMBL: ENSMUSP00000144013 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000082209] [ENSMUST00000108908] [ENSMUST00000108909] [ENSMUST00000108910] [ENSMUST00000200963] [ENSMUST00000201549]
AlphaFold no structure available at present
Predicted Effect probably benign
Transcript: ENSMUST00000082209
AA Change: C1804Y

PolyPhen 2 Score 0.063 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000080842
Gene: ENSMUSG00000023033
AA Change: C1804Y

DomainStartEndE-ValueType
Pfam:Ion_trans 131 422 7.4e-82 PFAM
low complexity region 423 452 N/A INTRINSIC
Pfam:Na_trans_cytopl 499 700 3.5e-72 PFAM
low complexity region 701 712 N/A INTRINSIC
Pfam:Ion_trans 750 985 2.2e-57 PFAM
Pfam:Na_trans_assoc 989 1191 2e-59 PFAM
Pfam:Ion_trans 1195 1472 6.2e-69 PFAM
Pfam:Ion_trans 1519 1775 1.2e-56 PFAM
IQ 1892 1914 1.2e-4 SMART
low complexity region 1953 1972 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000108908
AA Change: C1804Y

PolyPhen 2 Score 0.015 (Sensitivity: 0.96; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000104536
Gene: ENSMUSG00000023033
AA Change: C1804Y

DomainStartEndE-ValueType
Pfam:Ion_trans 72 322 1.9e-76 PFAM
low complexity region 367 378 N/A INTRINSIC
Pfam:Ion_trans 451 640 1.1e-47 PFAM
Pfam:Na_trans_assoc 655 872 1.9e-71 PFAM
Pfam:Ion_trans 898 1127 4.4e-59 PFAM
PDB:1BYY|A 1129 1181 7e-30 PDB
Pfam:Ion_trans 1220 1429 1.9e-51 PFAM
Pfam:PKD_channel 1281 1436 5.6e-7 PFAM
IQ 1558 1580 1.2e-4 SMART
low complexity region 1619 1638 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000108909
AA Change: C1814Y

PolyPhen 2 Score 0.043 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000104537
Gene: ENSMUSG00000023033
AA Change: C1814Y

DomainStartEndE-ValueType
Pfam:Ion_trans 72 322 2.2e-76 PFAM
low complexity region 335 364 N/A INTRINSIC
Pfam:DUF3451 390 616 8.7e-70 PFAM
Pfam:Ion_trans 697 886 1.3e-47 PFAM
Pfam:Na_trans_assoc 901 1118 2.3e-71 PFAM
Pfam:Ion_trans 1144 1186 9.7e-10 PFAM
Pfam:Ion_trans 1182 1332 1.7e-31 PFAM
PDB:1BYY|A 1334 1386 2e-29 PDB
Pfam:Ion_trans 1425 1634 2.3e-51 PFAM
Pfam:PKD_channel 1486 1641 6.6e-7 PFAM
IQ 1763 1785 1.2e-4 SMART
low complexity region 1824 1843 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000108910
AA Change: C1804Y

PolyPhen 2 Score 0.015 (Sensitivity: 0.96; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000104538
Gene: ENSMUSG00000023033
AA Change: C1804Y

DomainStartEndE-ValueType
Pfam:Ion_trans 160 410 2.5e-76 PFAM
low complexity region 423 452 N/A INTRINSIC
Pfam:DUF3451 478 704 9.6e-70 PFAM
Pfam:Ion_trans 785 974 1.4e-47 PFAM
Pfam:Na_trans_assoc 989 1206 2.5e-71 PFAM
Pfam:Ion_trans 1232 1461 5.7e-59 PFAM
PDB:1BYY|A 1463 1515 4e-29 PDB
Pfam:Ion_trans 1554 1763 2.5e-51 PFAM
Pfam:PKD_channel 1615 1770 7.1e-7 PFAM
IQ 1892 1914 1.2e-4 SMART
low complexity region 1953 1972 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000200963
AA Change: C1763Y

PolyPhen 2 Score 0.041 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000144371
Gene: ENSMUSG00000023033
AA Change: C1763Y

DomainStartEndE-ValueType
Pfam:Ion_trans 131 422 4.1e-80 PFAM
low complexity region 423 452 N/A INTRINSIC
Pfam:Na_trans_cytopl 499 700 2.5e-69 PFAM
low complexity region 701 712 N/A INTRINSIC
Pfam:Ion_trans 750 985 1.2e-55 PFAM
Pfam:Na_trans_assoc 989 1191 9.1e-57 PFAM
Pfam:Ion_trans 1195 1274 7.6e-16 PFAM
Pfam:Ion_trans 1270 1431 2.6e-33 PFAM
Pfam:Ion_trans 1478 1734 6.5e-55 PFAM
IQ 1851 1873 6e-7 SMART
low complexity region 1912 1931 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000201549
AA Change: C1804Y

PolyPhen 2 Score 0.063 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000144013
Gene: ENSMUSG00000023033
AA Change: C1804Y

DomainStartEndE-ValueType
Pfam:Ion_trans 131 422 7.4e-82 PFAM
low complexity region 423 452 N/A INTRINSIC
Pfam:Na_trans_cytopl 499 700 3.5e-72 PFAM
low complexity region 701 712 N/A INTRINSIC
Pfam:Ion_trans 750 985 2.2e-57 PFAM
Pfam:Na_trans_assoc 989 1191 2e-59 PFAM
Pfam:Ion_trans 1195 1472 6.2e-69 PFAM
Pfam:Ion_trans 1519 1775 1.2e-56 PFAM
IQ 1892 1914 1.2e-4 SMART
low complexity region 1953 1972 N/A INTRINSIC
Coding Region Coverage
  • 1x: 99.0%
  • 3x: 98.2%
  • 10x: 96.0%
  • 20x: 91.8%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a member of the sodium channel alpha subunit gene family. The encoded protein forms the ion pore region of the voltage-gated sodium channel. This protein is essential for the rapid membrane depolarization that occurs during the formation of the action potential in excitable neurons. Mutations in this gene are associated with mental retardation, pancerebellar atrophy and ataxia. Alternate splicing results in multiple transcript variants.[provided by RefSeq, May 2010]
PHENOTYPE: Spontaneous mutant homozygotes have ataxia, dystonia, muscular atrophy, progressive paralysis, Purkinje cell loss, in some cases severe head-tossing and for severe alleles, juvenile lethality. A mild, semidominant ENU allele causes deafness of variable penetrance and severity and mild tremor. [provided by MGI curators]
Allele List at MGI

 All alleles(22) : Targeted, knock-out(1) Targeted, other(1) Gene trapped(6) Transgenic(1) Spontaneous(5) Chemically induced(8)

Other mutations in this stock
Total: 67 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca3 T A 17: 24,621,305 (GRCm39) M1055K probably damaging Het
Adprh A T 16: 38,270,702 (GRCm39) D34E probably benign Het
Aldh1a1 A T 19: 20,595,310 (GRCm39) M80L probably benign Het
Arap2 T A 5: 62,840,820 (GRCm39) D682V probably damaging Het
Atp4a T A 7: 30,417,117 (GRCm39) L500Q probably benign Het
Atp6v1c2 T C 12: 17,358,317 (GRCm39) E10G probably damaging Het
B4galt2 G A 4: 117,734,141 (GRCm39) R299W possibly damaging Het
Bltp3a T C 17: 28,114,354 (GRCm39) probably null Het
Brinp1 A C 4: 68,716,928 (GRCm39) S307A probably benign Het
Cacna2d1 G A 5: 16,566,874 (GRCm39) probably null Het
Ccdc3 T C 2: 5,146,077 (GRCm39) V137A possibly damaging Het
Ccnb1ip1 T C 14: 51,029,594 (GRCm39) K156R possibly damaging Het
Cfap77 A T 2: 28,852,700 (GRCm39) W191R probably damaging Het
Chga A G 12: 102,529,304 (GRCm39) E427G probably damaging Het
Chrnd A T 1: 87,120,267 (GRCm39) Y32F probably benign Het
Cks1b C A 3: 89,323,249 (GRCm39) probably benign Het
Creld2 G A 15: 88,704,834 (GRCm39) W103* probably null Het
Dip2a C A 10: 76,112,231 (GRCm39) R1098L possibly damaging Het
Dmbx1 T A 4: 115,775,455 (GRCm39) H275L probably damaging Het
Dmrt2 A G 19: 25,655,357 (GRCm39) M319V possibly damaging Het
Dock8 A G 19: 25,067,391 (GRCm39) Y345C probably benign Het
Dpp6 A G 5: 27,926,103 (GRCm39) T668A probably benign Het
Eef1d A G 15: 75,774,526 (GRCm39) probably null Het
Epb41l3 A G 17: 69,581,762 (GRCm39) T568A possibly damaging Het
Erc2 A G 14: 28,024,929 (GRCm39) R603G probably damaging Het
Fam83d T C 2: 158,625,170 (GRCm39) S254P probably damaging Het
Fcgr4 A T 1: 170,856,739 (GRCm39) H202L possibly damaging Het
Gm4922 C T 10: 18,659,469 (GRCm39) A418T possibly damaging Het
Kmo A G 1: 175,486,125 (GRCm39) H416R probably benign Het
Lao1 A G 4: 118,822,602 (GRCm39) N174S probably benign Het
Lrwd1 A T 5: 136,159,844 (GRCm39) H406Q probably benign Het
Magoh A G 4: 107,744,459 (GRCm39) I143V probably benign Het
Mpz A G 1: 170,986,008 (GRCm39) H49R possibly damaging Het
Nav1 T C 1: 135,400,148 (GRCm39) N474S probably benign Het
Ndufb10 T G 17: 24,941,757 (GRCm39) E68D probably benign Het
Obscn T C 11: 58,926,913 (GRCm39) D5534G possibly damaging Het
Or13c7d T C 4: 43,770,991 (GRCm39) T7A probably benign Het
Or14j5 T A 17: 38,161,575 (GRCm39) F31I probably damaging Het
Or1j16 A T 2: 36,530,132 (GRCm39) Y27F probably benign Het
Or4d10 A T 19: 12,051,605 (GRCm39) Y130* probably null Het
Or52l1 A T 7: 104,830,040 (GRCm39) F160Y probably benign Het
Or8k30 C A 2: 86,339,028 (GRCm39) T75K probably damaging Het
Padi1 A T 4: 140,559,640 (GRCm39) V79E possibly damaging Het
Pdha2 A G 3: 140,917,260 (GRCm39) Y83H probably damaging Het
Phpt1 A G 2: 25,464,727 (GRCm39) I42T probably damaging Het
Pot1b A C 17: 55,981,085 (GRCm39) S310A probably benign Het
Ptpn13 G A 5: 103,637,639 (GRCm39) V176I probably damaging Het
Ptprf A G 4: 118,114,689 (GRCm39) S189P probably damaging Het
Rere A T 4: 150,619,341 (GRCm39) Q381L unknown Het
Rfwd3 C T 8: 112,014,874 (GRCm39) R326Q probably damaging Het
Sema3c G A 5: 17,883,312 (GRCm39) D307N probably benign Het
Siah2 T C 3: 58,583,737 (GRCm39) E183G probably benign Het
Smarca5 G A 8: 81,437,260 (GRCm39) L699F probably damaging Het
Smo T A 6: 29,754,718 (GRCm39) S263T probably benign Het
Sox2 A G 3: 34,704,848 (GRCm39) E95G probably damaging Het
T T C 17: 8,658,771 (GRCm39) S171P probably benign Het
Tmc7 G T 7: 118,141,247 (GRCm39) A628D probably benign Het
Tmem45a2 A G 16: 56,869,789 (GRCm39) S52P probably damaging Het
Tubb3 C T 8: 124,148,186 (GRCm39) A373V probably damaging Het
Upp2 A G 2: 58,653,716 (GRCm39) Y69C probably damaging Het
Utp4 A G 8: 107,627,476 (GRCm39) probably null Het
Vmn1r59 T A 7: 5,457,410 (GRCm39) M117L probably benign Het
Xkr8 T C 4: 132,459,722 (GRCm39) S19G probably benign Het
Zbed6 G A 1: 133,586,941 (GRCm39) T132I probably damaging Het
Zbtb24 T C 10: 41,340,523 (GRCm39) Y518H probably damaging Het
Zfp324 T C 7: 12,705,551 (GRCm39) I580T probably benign Het
Zfp995 G A 17: 22,098,960 (GRCm39) H425Y probably damaging Het
Other mutations in Scn8a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00230:Scn8a APN 15 100,853,413 (GRCm39) unclassified probably benign
IGL00979:Scn8a APN 15 100,853,287 (GRCm39) unclassified probably benign
IGL01339:Scn8a APN 15 100,930,082 (GRCm39) missense probably benign
IGL01992:Scn8a APN 15 100,866,938 (GRCm39) missense probably damaging 1.00
IGL02215:Scn8a APN 15 100,927,453 (GRCm39) splice site probably null
IGL02311:Scn8a APN 15 100,911,164 (GRCm39) missense probably damaging 0.97
IGL02404:Scn8a APN 15 100,937,611 (GRCm39) missense probably damaging 1.00
IGL02652:Scn8a APN 15 100,911,357 (GRCm39) missense probably damaging 0.98
IGL02690:Scn8a APN 15 100,868,135 (GRCm39) missense probably damaging 1.00
IGL02704:Scn8a APN 15 100,905,943 (GRCm39) missense possibly damaging 0.94
IGL03084:Scn8a APN 15 100,915,053 (GRCm39) missense probably damaging 1.00
IGL03108:Scn8a APN 15 100,872,496 (GRCm39) missense probably benign
IGL03224:Scn8a APN 15 100,933,520 (GRCm39) missense probably damaging 1.00
dan UTSW 15 100,933,505 (GRCm39) nonsense probably null
nymph UTSW 15 100,933,527 (GRCm39) missense probably damaging 1.00
Tremord UTSW 15 100,911,385 (GRCm39) missense probably damaging 1.00
3-1:Scn8a UTSW 15 100,937,820 (GRCm39) missense probably benign 0.04
PIT4280001:Scn8a UTSW 15 100,855,370 (GRCm39) missense probably damaging 1.00
PIT4508001:Scn8a UTSW 15 100,927,573 (GRCm39) missense probably damaging 0.98
R0010:Scn8a UTSW 15 100,911,454 (GRCm39) missense probably damaging 1.00
R0010:Scn8a UTSW 15 100,911,454 (GRCm39) missense probably damaging 1.00
R0254:Scn8a UTSW 15 100,916,245 (GRCm39) missense probably damaging 1.00
R0412:Scn8a UTSW 15 100,906,187 (GRCm39) splice site probably benign
R0538:Scn8a UTSW 15 100,933,505 (GRCm39) nonsense probably null
R0539:Scn8a UTSW 15 100,914,449 (GRCm39) missense probably damaging 1.00
R0631:Scn8a UTSW 15 100,933,418 (GRCm39) missense probably damaging 1.00
R0726:Scn8a UTSW 15 100,870,711 (GRCm39) missense probably damaging 1.00
R0945:Scn8a UTSW 15 100,913,668 (GRCm39) missense possibly damaging 0.54
R0967:Scn8a UTSW 15 100,933,527 (GRCm39) missense probably damaging 1.00
R1283:Scn8a UTSW 15 100,867,052 (GRCm39) missense possibly damaging 0.82
R1368:Scn8a UTSW 15 100,933,422 (GRCm39) missense probably damaging 1.00
R1633:Scn8a UTSW 15 100,927,696 (GRCm39) missense probably benign 0.01
R1669:Scn8a UTSW 15 100,909,001 (GRCm39) missense probably damaging 1.00
R1694:Scn8a UTSW 15 100,853,409 (GRCm39) nonsense probably null
R1735:Scn8a UTSW 15 100,913,742 (GRCm39) missense possibly damaging 0.94
R1773:Scn8a UTSW 15 100,937,496 (GRCm39) missense probably damaging 0.97
R1940:Scn8a UTSW 15 100,868,085 (GRCm39) missense probably benign 0.22
R1996:Scn8a UTSW 15 100,922,260 (GRCm39) missense probably damaging 1.00
R2107:Scn8a UTSW 15 100,916,244 (GRCm39) missense probably damaging 0.99
R2251:Scn8a UTSW 15 100,914,987 (GRCm39) missense probably benign 0.02
R2516:Scn8a UTSW 15 100,867,043 (GRCm39) missense probably benign 0.05
R2917:Scn8a UTSW 15 100,937,613 (GRCm39) missense probably damaging 1.00
R3417:Scn8a UTSW 15 100,869,549 (GRCm39) splice site probably benign
R3896:Scn8a UTSW 15 100,933,379 (GRCm39) missense probably benign
R4024:Scn8a UTSW 15 100,937,674 (GRCm39) missense probably damaging 1.00
R4050:Scn8a UTSW 15 100,911,294 (GRCm39) nonsense probably null
R4193:Scn8a UTSW 15 100,869,484 (GRCm39) missense probably damaging 1.00
R4212:Scn8a UTSW 15 100,854,954 (GRCm39) missense possibly damaging 0.88
R4358:Scn8a UTSW 15 100,838,014 (GRCm39) missense probably benign 0.00
R4396:Scn8a UTSW 15 100,870,711 (GRCm39) missense probably damaging 1.00
R4428:Scn8a UTSW 15 100,881,784 (GRCm39) missense probably damaging 1.00
R4452:Scn8a UTSW 15 100,854,972 (GRCm39) missense possibly damaging 0.95
R4631:Scn8a UTSW 15 100,914,384 (GRCm39) nonsense probably null
R4693:Scn8a UTSW 15 100,913,572 (GRCm39) missense probably damaging 1.00
R4765:Scn8a UTSW 15 100,938,352 (GRCm39) missense probably benign 0.07
R4777:Scn8a UTSW 15 100,913,832 (GRCm39) missense probably damaging 1.00
R4949:Scn8a UTSW 15 100,927,663 (GRCm39) missense probably damaging 1.00
R4997:Scn8a UTSW 15 100,854,935 (GRCm39) missense probably damaging 1.00
R5246:Scn8a UTSW 15 100,908,938 (GRCm39) missense probably damaging 1.00
R5566:Scn8a UTSW 15 100,872,415 (GRCm39) missense probably damaging 1.00
R5875:Scn8a UTSW 15 100,870,703 (GRCm39) nonsense probably null
R6031:Scn8a UTSW 15 100,881,865 (GRCm39) missense probably damaging 1.00
R6031:Scn8a UTSW 15 100,881,865 (GRCm39) missense probably damaging 1.00
R6057:Scn8a UTSW 15 100,872,548 (GRCm39) missense possibly damaging 0.94
R6114:Scn8a UTSW 15 100,938,477 (GRCm39) missense probably damaging 0.99
R6362:Scn8a UTSW 15 100,837,996 (GRCm39) splice site probably null
R6535:Scn8a UTSW 15 100,857,588 (GRCm39) intron probably benign
R6677:Scn8a UTSW 15 100,866,953 (GRCm39) missense probably damaging 1.00
R6687:Scn8a UTSW 15 100,872,508 (GRCm39) missense probably benign 0.12
R6701:Scn8a UTSW 15 100,937,977 (GRCm39) missense probably damaging 1.00
R6719:Scn8a UTSW 15 100,908,896 (GRCm39) critical splice acceptor site probably null
R6739:Scn8a UTSW 15 100,913,836 (GRCm39) missense possibly damaging 0.82
R6769:Scn8a UTSW 15 100,933,445 (GRCm39) missense probably benign
R6786:Scn8a UTSW 15 100,930,096 (GRCm39) missense probably benign 0.00
R6849:Scn8a UTSW 15 100,853,468 (GRCm39) splice site probably null
R7108:Scn8a UTSW 15 100,937,659 (GRCm39) missense probably benign 0.01
R7215:Scn8a UTSW 15 100,927,711 (GRCm39) missense possibly damaging 0.80
R7217:Scn8a UTSW 15 100,868,108 (GRCm39) missense probably benign 0.00
R7219:Scn8a UTSW 15 100,866,984 (GRCm39) missense probably damaging 1.00
R7356:Scn8a UTSW 15 100,855,460 (GRCm39) missense probably damaging 1.00
R7479:Scn8a UTSW 15 100,853,358 (GRCm39) missense probably damaging 0.99
R7816:Scn8a UTSW 15 100,908,917 (GRCm39) missense possibly damaging 0.63
R7985:Scn8a UTSW 15 100,914,843 (GRCm39) splice site probably null
R8112:Scn8a UTSW 15 100,927,718 (GRCm39) missense probably benign 0.27
R8263:Scn8a UTSW 15 100,881,736 (GRCm39) missense probably damaging 1.00
R8305:Scn8a UTSW 15 100,938,387 (GRCm39) missense probably benign 0.01
R8489:Scn8a UTSW 15 100,867,014 (GRCm39) missense probably damaging 1.00
R8983:Scn8a UTSW 15 100,900,030 (GRCm39) missense possibly damaging 0.81
R9034:Scn8a UTSW 15 100,927,642 (GRCm39) missense probably damaging 0.98
R9050:Scn8a UTSW 15 100,906,161 (GRCm39) missense possibly damaging 0.80
R9240:Scn8a UTSW 15 100,915,068 (GRCm39) nonsense probably null
R9249:Scn8a UTSW 15 100,914,456 (GRCm39) missense probably benign 0.00
R9462:Scn8a UTSW 15 100,930,159 (GRCm39) missense
R9599:Scn8a UTSW 15 100,911,172 (GRCm39) missense probably damaging 1.00
R9609:Scn8a UTSW 15 100,834,407 (GRCm39) missense possibly damaging 0.91
R9653:Scn8a UTSW 15 100,937,947 (GRCm39) missense probably damaging 1.00
R9794:Scn8a UTSW 15 100,933,332 (GRCm39) missense probably benign 0.00
X0066:Scn8a UTSW 15 100,937,962 (GRCm39) missense probably damaging 1.00
X0066:Scn8a UTSW 15 100,937,961 (GRCm39) missense probably damaging 1.00
Z1176:Scn8a UTSW 15 100,931,399 (GRCm39) missense probably damaging 1.00
Z1177:Scn8a UTSW 15 100,938,103 (GRCm39) missense probably benign 0.00
Predicted Primers
Posted On 2014-01-15