Incidental Mutation 'R4396:Scn8a'
ID 325506
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 041129-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.800) question?
Stock # R4396 (G1)
Quality Score 225
Status Validated
Chromosome 15
Chromosomal Location 100767739-100943819 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 100870711 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Asparagine to Serine at position 254 (N254S)
Ref Sequence ENSEMBL: ENSMUSP00000143876 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000082209] [ENSMUST00000108908] [ENSMUST00000108909] [ENSMUST00000108910] [ENSMUST00000200963] [ENSMUST00000201518] [ENSMUST00000201549] [ENSMUST00000202702]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000082209
AA Change: N404S

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000080842
Gene: ENSMUSG00000023033
AA Change: N404S

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 possibly damaging
Transcript: ENSMUST00000108908
AA Change: N404S

PolyPhen 2 Score 0.772 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000104536
Gene: ENSMUSG00000023033
AA Change: N404S

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 damaging
Transcript: ENSMUST00000108909
AA Change: N404S

PolyPhen 2 Score 0.992 (Sensitivity: 0.70; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000104537
Gene: ENSMUSG00000023033
AA Change: N404S

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 possibly damaging
Transcript: ENSMUST00000108910
AA Change: N404S

PolyPhen 2 Score 0.772 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000104538
Gene: ENSMUSG00000023033
AA Change: N404S

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 damaging
Transcript: ENSMUST00000200963
AA Change: N404S

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000144371
Gene: ENSMUSG00000023033
AA Change: N404S

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 damaging
Transcript: ENSMUST00000201518
AA Change: N404S

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000143879
Gene: ENSMUSG00000023033
AA Change: N404S

DomainStartEndE-ValueType
Pfam:Ion_trans 131 422 8.8e-81 PFAM
low complexity region 423 452 N/A INTRINSIC
Pfam:Na_trans_cytopl 499 700 6.7e-70 PFAM
low complexity region 701 712 N/A INTRINSIC
Pfam:Ion_trans 750 804 5.3e-9 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000201549
AA Change: N404S

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000144013
Gene: ENSMUSG00000023033
AA Change: N404S

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 noncoding transcript
Transcript: ENSMUST00000202971
Predicted Effect probably damaging
Transcript: ENSMUST00000202702
AA Change: N254S

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000143876
Gene: ENSMUSG00000023033
AA Change: N254S

DomainStartEndE-ValueType
Pfam:Ion_trans 1 272 7.9e-75 PFAM
low complexity region 273 302 N/A INTRINSIC
Pfam:Na_trans_cytopl 349 539 9.4e-67 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000202452
Meta Mutation Damage Score 0.9026 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.1%
  • 20x: 94.8%
Validation Efficiency 98% (52/53)
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: 45 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acsm2 T C 7: 119,195,143 (GRCm39) F552L probably damaging Het
Actn2 A G 13: 12,325,765 (GRCm39) L70P probably damaging Het
Btbd7 A G 12: 102,751,552 (GRCm39) S1071P probably benign Het
Cd200r1 T A 16: 44,586,417 (GRCm39) W16R probably benign Het
Cdhr2 A G 13: 54,863,478 (GRCm39) N120D probably damaging Het
Col19a1 T C 1: 24,549,947 (GRCm39) T317A unknown Het
Dab1 C T 4: 104,588,948 (GRCm39) A524V probably benign Het
Dmbt1 T C 7: 130,718,361 (GRCm39) L1683P probably damaging Het
Dynll1 A T 5: 115,438,700 (GRCm39) C2S probably benign Het
Elp2 T A 18: 24,742,707 (GRCm39) S80T probably damaging Het
Fat1 T A 8: 45,405,383 (GRCm39) N711K probably damaging Het
Fzd3 A G 14: 65,473,054 (GRCm39) I238T probably damaging Het
Galnt7 A T 8: 57,991,215 (GRCm39) F432I probably damaging Het
Gemin5 T A 11: 58,030,375 (GRCm39) T817S probably benign Het
Gm5414 T G 15: 101,534,101 (GRCm39) E294A probably damaging Het
H2-T5 C A 17: 36,472,861 (GRCm39) probably benign Het
Homer3 G A 8: 70,742,793 (GRCm39) probably null Het
Kcnj4 C A 15: 79,368,874 (GRCm39) A369S probably benign Het
Llgl1 T C 11: 60,596,834 (GRCm39) V145A probably benign Het
Mdga1 T C 17: 30,069,491 (GRCm39) D185G probably damaging Het
Mettl2 A G 11: 105,017,604 (GRCm39) D38G probably damaging Het
Mfsd13a C T 19: 46,360,431 (GRCm39) R328C probably damaging Het
Mpp4 T C 1: 59,183,961 (GRCm39) I260V possibly damaging Het
Mtcl1 T C 17: 66,651,220 (GRCm39) E1112G probably damaging Het
Mtus2 T A 5: 148,140,748 (GRCm39) N871K possibly damaging Het
Mylk C T 16: 34,732,645 (GRCm39) Q642* probably null Het
Naip6 C T 13: 100,437,108 (GRCm39) A472T probably benign Het
Or4f57 A G 2: 111,790,560 (GRCm39) I286T probably damaging Het
Pdzd2 A T 15: 12,387,732 (GRCm39) D875E probably benign Het
Piezo1 G T 8: 123,225,413 (GRCm39) T557K probably damaging Het
Plxna2 C T 1: 194,431,625 (GRCm39) S538F probably damaging Het
Plxnb1 T C 9: 108,929,291 (GRCm39) V49A possibly damaging Het
Pramel6 A T 2: 87,338,874 (GRCm39) I25F probably damaging Het
Rreb1 C T 13: 38,114,419 (GRCm39) Q593* probably null Het
Scnn1g T G 7: 121,339,650 (GRCm39) S150A probably benign Het
Sec24a A G 11: 51,605,991 (GRCm39) F686L possibly damaging Het
Sirt1 T C 10: 63,157,777 (GRCm39) T546A probably benign Het
Tns2 C T 15: 102,017,369 (GRCm39) R281C probably damaging Het
Traf5 A T 1: 191,729,806 (GRCm39) V415E probably benign Het
Traip C G 9: 107,836,686 (GRCm39) T110S probably benign Het
Treml2 T C 17: 48,615,142 (GRCm39) V209A probably benign Het
Trpv5 T C 6: 41,634,830 (GRCm39) S500G probably benign Het
Usp32 G A 11: 84,944,801 (GRCm39) L296F probably benign Het
Vmn2r79 A G 7: 86,651,099 (GRCm39) H166R possibly damaging Het
Zswim1 A G 2: 164,667,369 (GRCm39) D207G 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
R1164:Scn8a UTSW 15 100,938,043 (GRCm39) missense probably benign 0.06
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
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 PCR Primer
(F):5'- TACCATGCAAGGAAACTCTGAG -3'
(R):5'- TAAAAGAGCGTGTGCACTGG -3'

Sequencing Primer
(F):5'- AGGAAACTCTGAGCCCCC -3'
(R):5'- AATCAGTGGGAGCCTTAGCCTC -3'
Posted On 2015-07-06