Incidental Mutation 'R8112:Scn8a'
ID 630959
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 067541-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.800) question?
Stock # R8112 (G1)
Quality Score 225.009
Status Not validated
Chromosome 15
Chromosomal Location 100767739-100943819 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 100927718 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Alanine to Valine at position 1399 (A1399V)
Ref Sequence ENSEMBL: ENSMUSP00000104538 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000082209] [ENSMUST00000108908] [ENSMUST00000108909] [ENSMUST00000108910] [ENSMUST00000200963] [ENSMUST00000201549]
AlphaFold no structure available at present
Predicted Effect possibly damaging
Transcript: ENSMUST00000082209
AA Change: A1399V

PolyPhen 2 Score 0.899 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000080842
Gene: ENSMUSG00000023033
AA Change: A1399V

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: A1399V

PolyPhen 2 Score 0.273 (Sensitivity: 0.91; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000104536
Gene: ENSMUSG00000023033
AA Change: A1399V

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
SMART Domains Protein: ENSMUSP00000104537
Gene: ENSMUSG00000023033
AA Change: A1409V

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: A1399V

PolyPhen 2 Score 0.273 (Sensitivity: 0.91; Specificity: 0.88)
SMART Domains Protein: ENSMUSP00000104538
Gene: ENSMUSG00000023033
AA Change: A1399V

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 possibly damaging
Transcript: ENSMUST00000200963
AA Change: A1358V

PolyPhen 2 Score 0.828 (Sensitivity: 0.84; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000144371
Gene: ENSMUSG00000023033
AA Change: A1358V

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 possibly damaging
Transcript: ENSMUST00000201549
AA Change: A1399V

PolyPhen 2 Score 0.899 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000144013
Gene: ENSMUSG00000023033
AA Change: A1399V

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: 99.8%
  • 3x: 99.6%
  • 10x: 98.5%
  • 20x: 95.0%
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: 65 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca13 T C 11: 9,264,624 (GRCm39) V3002A probably benign Het
Aifm3 T C 16: 17,320,804 (GRCm39) V422A probably damaging Het
Alx3 G T 3: 107,512,300 (GRCm39) E313* probably null Het
Arfgef3 A G 10: 18,528,379 (GRCm39) V336A possibly damaging Het
Art5 A T 7: 101,747,218 (GRCm39) V187E probably benign Het
Atxn1 A G 13: 45,721,433 (GRCm39) V154A probably benign Het
B3galt1 A G 2: 67,948,702 (GRCm39) D139G probably damaging Het
Cbx5 A G 15: 103,108,171 (GRCm39) V158A probably benign Het
Cdca7l T C 12: 117,840,779 (GRCm39) probably null Het
Cecr2 T C 6: 120,739,175 (GRCm39) S1301P probably benign Het
Chmp3 T A 6: 71,538,012 (GRCm39) S80T probably benign Het
Cyp2g1 T A 7: 26,518,886 (GRCm39) D427E probably benign Het
Depdc5 G A 5: 33,126,050 (GRCm39) V1199I possibly damaging Het
Efcab3 T C 11: 104,841,026 (GRCm39) V3643A unknown Het
Ehmt1 G T 2: 24,753,396 (GRCm39) L335M probably damaging Het
Elfn2 A G 15: 78,557,635 (GRCm39) V304A probably damaging Het
Emc1 C T 4: 139,094,498 (GRCm39) R684W probably benign Het
Eme2 A T 17: 25,113,809 (GRCm39) V72E probably damaging Het
Gen1 T A 12: 11,304,374 (GRCm39) K230* probably null Het
Gfap T A 11: 102,787,928 (GRCm39) I6F probably benign Het
Grid2 T C 6: 63,885,891 (GRCm39) S96P probably damaging Het
H2-M2 A G 17: 37,794,383 (GRCm39) L13P unknown Het
Hps4 T G 5: 112,517,977 (GRCm39) C323W probably benign Het
Ing3 A G 6: 21,952,181 (GRCm39) K52E probably damaging Het
Ippk C T 13: 49,599,818 (GRCm39) P226S Het
Klhl3 C T 13: 58,161,677 (GRCm39) V473M possibly damaging Het
Krt4 T A 15: 101,828,724 (GRCm39) N380I probably damaging Het
Lrp1 A T 10: 127,441,715 (GRCm39) C174S probably damaging Het
Lrrc8e T C 8: 4,285,575 (GRCm39) I600T probably benign Het
Malt1 T C 18: 65,582,680 (GRCm39) probably null Het
Mindy1 T C 3: 95,202,122 (GRCm39) L333P probably damaging Het
Mrgprb1 A G 7: 48,097,682 (GRCm39) S77P probably damaging Het
Mtus2 G T 5: 148,013,713 (GRCm39) E169* probably null Het
Muc5b A G 7: 141,415,765 (GRCm39) T2904A possibly damaging Het
Noxa1 C T 2: 24,982,553 (GRCm39) probably null Het
Ogfod3 G A 11: 121,095,376 (GRCm39) R5W probably damaging Het
Or4f59 T A 2: 111,872,982 (GRCm39) I132F probably damaging Het
Or7g35 T A 9: 19,496,020 (GRCm39) F62L probably benign Het
Or9i16 A G 19: 13,864,753 (GRCm39) S274P probably damaging Het
Pgm3 C A 9: 86,446,828 (GRCm39) R230L probably benign Het
Plpbp A G 8: 27,536,069 (GRCm39) I121V unknown Het
Prl8a9 T C 13: 27,743,355 (GRCm39) D150G probably benign Het
Psapl1 A G 5: 36,362,919 (GRCm39) N504D probably benign Het
Ptchd4 A C 17: 42,814,066 (GRCm39) N656H probably benign Het
Ptprs A T 17: 56,741,532 (GRCm39) Y577* probably null Het
Rasgef1c A G 11: 49,858,228 (GRCm39) Y263C probably damaging Het
Rinl A G 7: 28,490,014 (GRCm39) probably null Het
Scd4 T C 19: 44,325,945 (GRCm39) F100L probably benign Het
Scgb2b20 T G 7: 33,063,969 (GRCm39) R100S probably benign Het
Slc22a7 A G 17: 46,747,756 (GRCm39) V267A probably benign Het
Slc7a11 T C 3: 50,372,440 (GRCm39) E263G possibly damaging Het
Slmap A G 14: 26,143,703 (GRCm39) L728P probably damaging Het
Smarcb1 A T 10: 75,745,986 (GRCm39) probably null Het
Sspn T C 6: 145,901,361 (GRCm39) V80A possibly damaging Het
Tasor2 A T 13: 3,619,516 (GRCm39) D2238E probably damaging Het
Terb1 T C 8: 105,195,399 (GRCm39) T581A probably benign Het
Themis A G 10: 28,673,502 (GRCm39) *596W probably null Het
Thoc2l T C 5: 104,669,501 (GRCm39) F1341S probably benign Het
Trac T C 14: 54,460,557 (GRCm39) probably benign Het
Trim37 T C 11: 87,109,093 (GRCm39) F940S possibly damaging Het
Trpa1 T C 1: 14,974,490 (GRCm39) T231A probably benign Het
Ttn T C 2: 76,580,529 (GRCm39) I23455V probably benign Het
Wap G T 11: 6,586,724 (GRCm39) T125K probably benign Het
Wdfy4 G A 14: 32,826,072 (GRCm39) P1193L Het
Zfp85 T C 13: 67,896,893 (GRCm39) D393G possibly 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
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
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'- TCATGAACGTGCTGCTGGTG -3'
(R):5'- CTCACCAAGATGCTGCCAAG -3'

Sequencing Primer
(F):5'- TTCAGCATCATGGGCGTTAAC -3'
(R):5'- CCAAGAGGCACCAGGAAAGC -3'
Posted On 2020-06-30