Incidental Mutation 'R1981:Scn2a'
ID 222254
Institutional Source Beutler Lab
Gene Symbol Scn2a
Ensembl Gene ENSMUSG00000075318
Gene Name sodium channel, voltage-gated, type II, alpha
Synonyms A230052E19Rik, Nav1.2, Scn2a1
MMRRC Submission 039993-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R1981 (G1)
Quality Score 225
Status Validated
Chromosome 2
Chromosomal Location 65451115-65597791 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to A at 65520514 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Asparagine to Lysine at position 503 (N503K)
Ref Sequence ENSEMBL: ENSMUSP00000143882 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000028377] [ENSMUST00000100067] [ENSMUST00000144254] [ENSMUST00000200829]
AlphaFold B1AWN6
Predicted Effect probably damaging
Transcript: ENSMUST00000028377
AA Change: N503K

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000028377
Gene: ENSMUSG00000075318
AA Change: N503K

DomainStartEndE-ValueType
Pfam:Ion_trans 128 436 2.2e-81 PFAM
low complexity region 450 471 N/A INTRINSIC
Pfam:Na_trans_cytopl 505 710 9.6e-83 PFAM
Pfam:Ion_trans 759 994 3.6e-57 PFAM
Pfam:Na_trans_assoc 998 1204 1.7e-63 PFAM
Pfam:Ion_trans 1208 1484 3.3e-66 PFAM
Pfam:Ion_trans 1531 1788 2.8e-57 PFAM
Pfam:PKD_channel 1627 1782 8.6e-7 PFAM
IQ 1905 1927 3.59e-3 SMART
low complexity region 1967 1975 N/A INTRINSIC
low complexity region 1981 2000 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000100067
AA Change: N503K

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000097645
Gene: ENSMUSG00000075318
AA Change: N503K

DomainStartEndE-ValueType
Pfam:Ion_trans 157 424 3.3e-75 PFAM
low complexity region 433 448 N/A INTRINSIC
low complexity region 450 471 N/A INTRINSIC
Pfam:DUF3451 488 711 2.6e-66 PFAM
Pfam:Ion_trans 794 983 1.1e-47 PFAM
Pfam:Na_trans_assoc 998 1219 3.5e-77 PFAM
Pfam:Ion_trans 1245 1473 4.4e-55 PFAM
PDB:1BYY|A 1475 1527 3e-31 PDB
Pfam:Ion_trans 1566 1776 2.4e-52 PFAM
Pfam:PKD_channel 1628 1783 3.6e-7 PFAM
IQ 1905 1927 3.59e-3 SMART
low complexity region 1967 1975 N/A INTRINSIC
low complexity region 1981 2000 N/A INTRINSIC
Predicted Effect unknown
Transcript: ENSMUST00000144254
AA Change: N503K
SMART Domains Protein: ENSMUSP00000117955
Gene: ENSMUSG00000075318
AA Change: N503K

DomainStartEndE-ValueType
Pfam:Ion_trans 128 436 7.2e-81 PFAM
low complexity region 450 471 N/A INTRINSIC
low complexity region 484 502 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000200829
AA Change: N503K

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000143882
Gene: ENSMUSG00000075318
AA Change: N503K

DomainStartEndE-ValueType
Pfam:Ion_trans 128 436 1.2e-79 PFAM
low complexity region 450 471 N/A INTRINSIC
Pfam:Na_trans_cytopl 505 710 7.1e-80 PFAM
Pfam:Ion_trans 759 994 2.1e-55 PFAM
Pfam:Na_trans_assoc 998 1204 8e-61 PFAM
Pfam:Ion_trans 1208 1484 1.9e-64 PFAM
Pfam:Ion_trans 1531 1788 1.6e-55 PFAM
Pfam:PKD_channel 1627 1782 1.2e-4 PFAM
IQ 1905 1927 1.8e-5 SMART
low complexity region 1967 1975 N/A INTRINSIC
low complexity region 1981 2000 N/A INTRINSIC
Meta Mutation Damage Score 0.1234 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 94.6%
Validation Efficiency 99% (80/81)
MGI Phenotype FUNCTION: Voltage-gated sodium channels are transmembrane glycoprotein complexes composed of a large alpha subunit with four repeat domains, each of which is composed of six membrane-spanning segments, and one or more regulatory beta subunits. Voltage-gated sodium channels are responsible for the generation and propagation of action potentials in neurons and muscle. This gene encodes one member of the sodium channel alpha subunit gene family. In humans, variants of this gene are associated with seizure disorders and autism spectrum disorder. Mice homozygous for a knockout mutation die with severe hypoxia and extensive neuronal cell death, while gain of function mutations result in progressive seizure disorder. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]
PHENOTYPE: Homozygotes for a targeted mutation exhibit excess neuronal apoptosis (especially in the brainstem), reduced neuronal sodium channel currents in vitro, and severe hypoxia resulting in neonatal lethality. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 80 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Anks1 T C 17: 28,204,095 (GRCm39) V181A probably damaging Het
Aqp4 T C 18: 15,526,608 (GRCm39) D291G probably damaging Het
Atad1 G T 19: 32,673,210 (GRCm39) D224E probably benign Het
Atp1a3 T G 7: 24,700,400 (GRCm39) E33A probably benign Het
Baz2b A G 2: 59,754,024 (GRCm39) F1100L possibly damaging Het
Car7 C T 8: 105,275,009 (GRCm39) probably benign Het
Casp8 C A 1: 58,868,121 (GRCm39) probably null Het
Cdh23 A T 10: 60,214,530 (GRCm39) L1495H probably damaging Het
Ceacam9 T G 7: 16,459,232 (GRCm39) L177R probably benign Het
Col16a1 C G 4: 129,959,236 (GRCm39) P346A unknown Het
Cyp2c29 A G 19: 39,296,216 (GRCm39) probably null Het
Cyp3a13 T C 5: 137,910,118 (GRCm39) S139G probably damaging Het
Dapk2 A G 9: 66,176,180 (GRCm39) H327R probably benign Het
Ddx19b T C 8: 111,735,975 (GRCm39) T357A possibly damaging Het
Dnah2 A G 11: 69,365,151 (GRCm39) Y1944H probably damaging Het
Dnai2 T A 11: 114,623,755 (GRCm39) V6E probably damaging Het
Eipr1 T C 12: 28,913,024 (GRCm39) Y242H probably damaging Het
Fam149a T G 8: 45,834,778 (GRCm39) D7A probably damaging Het
Fam217a T A 13: 35,100,737 (GRCm39) D140V probably benign Het
Fat4 G A 3: 39,045,813 (GRCm39) C3944Y probably damaging Het
Fezf2 G T 14: 12,344,405 (GRCm38) P261T probably benign Het
Gcsam A T 16: 45,440,337 (GRCm39) T127S probably damaging Het
Git2 C T 5: 114,887,620 (GRCm39) probably benign Het
Gm1527 T C 3: 28,969,984 (GRCm39) probably null Het
Gtf3c1 A G 7: 125,243,444 (GRCm39) L1720P possibly damaging Het
H2-T9 T A 17: 36,439,614 (GRCm39) D122V probably damaging Het
Hat1 A G 2: 71,220,321 (GRCm39) T28A probably benign Het
Igf2r G A 17: 12,952,790 (GRCm39) Q219* probably null Het
Impdh1 T A 6: 29,206,450 (GRCm39) D129V possibly damaging Het
Kcnh8 GAGACCAACGAGCAGCTGATGCTTCAGA GAGA 17: 53,032,934 (GRCm39) 74 probably benign Het
Ltbp3 A G 19: 5,808,107 (GRCm39) Q1250R probably benign Het
Mansc4 T A 6: 146,977,173 (GRCm39) I148F probably benign Het
Mast2 T C 4: 116,172,037 (GRCm39) Y569C probably damaging Het
Mcoln3 A T 3: 145,846,345 (GRCm39) K552* probably null Het
Mctp2 T C 7: 71,814,446 (GRCm39) Q601R probably benign Het
Mei1 A G 15: 81,987,513 (GRCm39) N859S probably benign Het
Myo19 A T 11: 84,782,996 (GRCm39) Q170L possibly damaging Het
Myo1h T C 5: 114,491,898 (GRCm39) F676S probably damaging Het
Myo9a A G 9: 59,801,429 (GRCm39) T1876A probably benign Het
Nav3 G T 10: 109,554,951 (GRCm39) probably benign Het
Ndor1 T C 2: 25,145,236 (GRCm39) Y43C probably damaging Het
Nlrp1a A G 11: 70,989,764 (GRCm39) V1102A probably damaging Het
Nmnat3 T C 9: 98,292,352 (GRCm39) I199T possibly damaging Het
Nsun7 T C 5: 66,418,557 (GRCm39) S96P probably damaging Het
Ntng1 A G 3: 109,842,326 (GRCm39) V149A possibly damaging Het
Oas3 T C 5: 120,899,900 (GRCm39) probably benign Het
Or10v9 T G 19: 11,832,371 (GRCm39) Q315H possibly damaging Het
Or4k47 T A 2: 111,451,586 (GRCm39) I278F probably benign Het
Or5bw2 A G 7: 6,573,557 (GRCm39) D189G probably benign Het
Or6z7 T C 7: 6,483,931 (GRCm39) M75V probably benign Het
Or8b3 T C 9: 38,315,031 (GRCm39) L287P probably damaging Het
Or8k53 A T 2: 86,177,486 (GRCm39) I208N possibly damaging Het
Pax2 G A 19: 44,806,904 (GRCm39) D301N probably damaging Het
Pcsk4 T A 10: 80,161,613 (GRCm39) E176V probably damaging Het
Pkhd1 G A 1: 20,187,284 (GRCm39) P3675S probably benign Het
Plekho2 A T 9: 65,465,974 (GRCm39) L138Q probably damaging Het
Ppp4r3c1 A T X: 88,975,051 (GRCm39) V382E probably damaging Het
Prkcsh A G 9: 21,924,164 (GRCm39) D458G probably damaging Het
Prr11 T A 11: 86,994,116 (GRCm39) D100V probably damaging Het
Qars1 A G 9: 108,392,227 (GRCm39) N136D probably damaging Het
Rbm15b A G 9: 106,758,822 (GRCm39) probably benign Het
Rel C T 11: 23,692,761 (GRCm39) G424D probably benign Het
Rsrc1 A G 3: 67,257,338 (GRCm39) D250G probably benign Het
Samt3 A C X: 85,090,740 (GRCm39) M211L probably benign Het
Sh2d6 G A 6: 72,494,527 (GRCm39) probably benign Het
Smg8 T C 11: 86,976,157 (GRCm39) T475A probably benign Het
Ssxb10 A G X: 8,197,258 (GRCm39) D77G probably benign Het
Tbx20 T A 9: 24,682,209 (GRCm39) K48N possibly damaging Het
Tead1 C A 7: 112,490,952 (GRCm39) D231E probably benign Het
Ticam1 C T 17: 56,578,555 (GRCm39) R180H probably damaging Het
Tjp1 A T 7: 64,962,603 (GRCm39) F1111L probably damaging Het
Tlr11 T A 14: 50,599,445 (GRCm39) I477K possibly damaging Het
Ttc13 A G 8: 125,440,926 (GRCm39) probably null Het
Ttc17 T C 2: 94,157,049 (GRCm39) N411S probably benign Het
Usp15 T A 10: 122,960,946 (GRCm39) probably benign Het
Usp18 A G 6: 121,229,476 (GRCm39) K32E probably benign Het
Vmn1r12 A T 6: 57,136,646 (GRCm39) M248L probably benign Het
Zbtb14 C A 17: 69,695,497 (GRCm39) F398L probably damaging Het
Zfp930 T A 8: 69,680,824 (GRCm39) L172H probably damaging Het
Zfp976 G A 7: 42,263,046 (GRCm39) H264Y probably damaging Het
Other mutations in Scn2a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00088:Scn2a APN 2 65,594,784 (GRCm39) missense probably benign
IGL00159:Scn2a APN 2 65,573,434 (GRCm39) missense probably damaging 1.00
IGL00418:Scn2a APN 2 65,594,866 (GRCm39) missense probably benign 0.43
IGL00753:Scn2a APN 2 65,514,207 (GRCm39) missense possibly damaging 0.66
IGL00770:Scn2a APN 2 65,566,197 (GRCm39) missense probably damaging 1.00
IGL00774:Scn2a APN 2 65,566,197 (GRCm39) missense probably damaging 1.00
IGL00847:Scn2a APN 2 65,501,078 (GRCm39) missense probably damaging 1.00
IGL01155:Scn2a APN 2 65,548,092 (GRCm39) missense probably damaging 1.00
IGL01329:Scn2a APN 2 65,547,852 (GRCm39) missense probably benign 0.05
IGL01537:Scn2a APN 2 65,546,219 (GRCm39) missense probably benign 0.00
IGL01672:Scn2a APN 2 65,582,278 (GRCm39) missense probably damaging 1.00
IGL01958:Scn2a APN 2 65,532,173 (GRCm39) missense probably damaging 1.00
IGL02028:Scn2a APN 2 65,594,002 (GRCm39) missense probably damaging 0.96
IGL02142:Scn2a APN 2 65,546,182 (GRCm39) missense probably damaging 1.00
IGL02160:Scn2a APN 2 65,560,460 (GRCm39) missense probably damaging 1.00
IGL02183:Scn2a APN 2 65,501,947 (GRCm39) missense probably benign 0.20
IGL02341:Scn2a APN 2 65,518,721 (GRCm39) missense probably damaging 1.00
IGL02504:Scn2a APN 2 65,514,228 (GRCm39) missense probably benign 0.02
IGL02530:Scn2a APN 2 65,560,522 (GRCm39) missense probably damaging 0.99
IGL02621:Scn2a APN 2 65,579,223 (GRCm39) splice site probably benign
IGL02652:Scn2a APN 2 65,532,382 (GRCm39) missense possibly damaging 0.82
IGL02966:Scn2a APN 2 65,532,188 (GRCm39) missense possibly damaging 0.93
IGL03188:Scn2a APN 2 65,501,997 (GRCm39) missense probably damaging 0.99
IGL03329:Scn2a APN 2 65,594,973 (GRCm39) missense probably benign
IGL03336:Scn2a APN 2 65,519,088 (GRCm39) missense probably damaging 1.00
IGL03391:Scn2a APN 2 65,594,557 (GRCm39) missense probably damaging 1.00
PIT4280001:Scn2a UTSW 2 65,546,074 (GRCm39) missense probably damaging 1.00
PIT4362001:Scn2a UTSW 2 65,514,182 (GRCm39) missense probably benign 0.09
PIT4403001:Scn2a UTSW 2 65,542,252 (GRCm39) missense probably damaging 1.00
PIT4520001:Scn2a UTSW 2 65,518,763 (GRCm39) missense probably damaging 1.00
R0021:Scn2a UTSW 2 65,500,859 (GRCm39) missense possibly damaging 0.51
R0141:Scn2a UTSW 2 65,542,160 (GRCm39) missense probably benign 0.01
R0240:Scn2a UTSW 2 65,566,118 (GRCm39) missense probably benign 0.32
R0240:Scn2a UTSW 2 65,566,118 (GRCm39) missense probably benign 0.32
R0335:Scn2a UTSW 2 65,512,435 (GRCm39) missense probably damaging 1.00
R0508:Scn2a UTSW 2 65,548,186 (GRCm39) missense probably damaging 0.99
R0558:Scn2a UTSW 2 65,542,269 (GRCm39) missense probably benign 0.26
R0600:Scn2a UTSW 2 65,532,177 (GRCm39) missense possibly damaging 0.90
R0667:Scn2a UTSW 2 65,582,340 (GRCm39) missense possibly damaging 0.91
R1178:Scn2a UTSW 2 65,517,123 (GRCm39) splice site probably benign
R1244:Scn2a UTSW 2 65,593,999 (GRCm39) missense probably damaging 0.98
R1386:Scn2a UTSW 2 65,519,085 (GRCm39) missense probably damaging 1.00
R1434:Scn2a UTSW 2 65,532,335 (GRCm39) missense possibly damaging 0.79
R1440:Scn2a UTSW 2 65,594,938 (GRCm39) missense probably benign
R1448:Scn2a UTSW 2 65,514,189 (GRCm39) missense probably benign 0.17
R1460:Scn2a UTSW 2 65,532,187 (GRCm39) missense probably damaging 0.96
R1553:Scn2a UTSW 2 65,544,180 (GRCm39) nonsense probably null
R1642:Scn2a UTSW 2 65,514,041 (GRCm39) missense probably damaging 1.00
R1803:Scn2a UTSW 2 65,501,111 (GRCm39) splice site probably null
R2002:Scn2a UTSW 2 65,512,427 (GRCm39) missense probably null 1.00
R2068:Scn2a UTSW 2 65,582,417 (GRCm39) missense probably benign 0.14
R2125:Scn2a UTSW 2 65,582,423 (GRCm39) nonsense probably null
R2126:Scn2a UTSW 2 65,582,423 (GRCm39) nonsense probably null
R2876:Scn2a UTSW 2 65,546,241 (GRCm39) missense possibly damaging 0.64
R2878:Scn2a UTSW 2 65,518,715 (GRCm39) missense probably damaging 1.00
R3113:Scn2a UTSW 2 65,579,129 (GRCm39) missense possibly damaging 0.86
R3749:Scn2a UTSW 2 65,544,115 (GRCm39) missense probably damaging 1.00
R3750:Scn2a UTSW 2 65,544,115 (GRCm39) missense probably damaging 1.00
R3765:Scn2a UTSW 2 65,513,054 (GRCm39) missense possibly damaging 0.51
R3850:Scn2a UTSW 2 65,512,375 (GRCm39) missense probably benign 0.14
R4585:Scn2a UTSW 2 65,573,395 (GRCm39) splice site probably null
R4586:Scn2a UTSW 2 65,573,395 (GRCm39) splice site probably null
R4588:Scn2a UTSW 2 65,544,111 (GRCm39) missense possibly damaging 0.76
R4622:Scn2a UTSW 2 65,582,371 (GRCm39) missense probably benign 0.04
R5108:Scn2a UTSW 2 65,518,974 (GRCm39) missense probably damaging 1.00
R5161:Scn2a UTSW 2 65,594,935 (GRCm39) missense probably benign 0.00
R5235:Scn2a UTSW 2 65,582,355 (GRCm39) missense probably damaging 1.00
R5464:Scn2a UTSW 2 65,532,100 (GRCm39) missense probably damaging 1.00
R5586:Scn2a UTSW 2 65,537,639 (GRCm39) nonsense probably null
R5630:Scn2a UTSW 2 65,556,709 (GRCm39) missense probably damaging 1.00
R5715:Scn2a UTSW 2 65,547,928 (GRCm39) missense probably benign 0.27
R5730:Scn2a UTSW 2 65,512,882 (GRCm39) nonsense probably null
R5734:Scn2a UTSW 2 65,548,066 (GRCm39) missense possibly damaging 0.49
R5779:Scn2a UTSW 2 65,594,827 (GRCm39) missense probably benign 0.00
R6133:Scn2a UTSW 2 65,573,448 (GRCm39) missense probably benign 0.35
R6547:Scn2a UTSW 2 65,546,241 (GRCm39) missense probably benign 0.29
R6549:Scn2a UTSW 2 65,595,018 (GRCm39) missense probably benign 0.05
R6818:Scn2a UTSW 2 65,519,013 (GRCm39) nonsense probably null
R6999:Scn2a UTSW 2 65,512,453 (GRCm39) missense probably benign
R7069:Scn2a UTSW 2 65,594,950 (GRCm39) missense probably benign 0.00
R7073:Scn2a UTSW 2 65,558,787 (GRCm39) missense probably benign 0.00
R7125:Scn2a UTSW 2 65,594,277 (GRCm39) missense probably damaging 1.00
R7178:Scn2a UTSW 2 65,579,197 (GRCm39) nonsense probably null
R7179:Scn2a UTSW 2 65,532,323 (GRCm39) missense probably damaging 1.00
R7203:Scn2a UTSW 2 65,578,663 (GRCm39) missense probably benign 0.01
R7227:Scn2a UTSW 2 65,582,367 (GRCm39) missense probably damaging 0.98
R7269:Scn2a UTSW 2 65,594,113 (GRCm39) missense probably damaging 1.00
R7358:Scn2a UTSW 2 65,512,850 (GRCm39) nonsense probably null
R7388:Scn2a UTSW 2 65,518,998 (GRCm39) missense probably damaging 1.00
R7491:Scn2a UTSW 2 65,532,352 (GRCm39) missense probably damaging 0.99
R7619:Scn2a UTSW 2 65,546,247 (GRCm39) missense probably damaging 1.00
R7695:Scn2a UTSW 2 65,542,251 (GRCm39) missense probably damaging 0.99
R7735:Scn2a UTSW 2 65,594,013 (GRCm39) missense probably benign 0.40
R7911:Scn2a UTSW 2 65,512,427 (GRCm39) missense probably null 1.00
R8096:Scn2a UTSW 2 65,594,366 (GRCm39) missense probably damaging 0.98
R8172:Scn2a UTSW 2 65,520,672 (GRCm39) missense probably benign 0.01
R8220:Scn2a UTSW 2 65,520,620 (GRCm39) missense probably benign 0.01
R8333:Scn2a UTSW 2 65,514,191 (GRCm39) missense probably benign 0.01
R8416:Scn2a UTSW 2 65,511,345 (GRCm39) missense probably benign 0.00
R8850:Scn2a UTSW 2 65,518,730 (GRCm39) missense probably damaging 1.00
R8897:Scn2a UTSW 2 65,546,002 (GRCm39) critical splice acceptor site probably null
R8977:Scn2a UTSW 2 65,594,014 (GRCm39) missense probably damaging 0.99
R8992:Scn2a UTSW 2 65,594,242 (GRCm39) missense probably damaging 1.00
R9190:Scn2a UTSW 2 65,511,346 (GRCm39) missense probably benign 0.00
R9206:Scn2a UTSW 2 65,548,131 (GRCm39) missense probably damaging 1.00
R9355:Scn2a UTSW 2 65,594,433 (GRCm39) missense probably damaging 1.00
R9452:Scn2a UTSW 2 65,595,163 (GRCm39) missense probably benign
R9529:Scn2a UTSW 2 65,594,932 (GRCm39) missense probably damaging 0.99
R9567:Scn2a UTSW 2 65,518,974 (GRCm39) missense probably damaging 1.00
R9569:Scn2a UTSW 2 65,560,622 (GRCm39) missense probably damaging 1.00
R9657:Scn2a UTSW 2 65,566,032 (GRCm39) missense probably damaging 1.00
R9715:Scn2a UTSW 2 65,579,149 (GRCm39) missense possibly damaging 0.93
R9761:Scn2a UTSW 2 65,566,030 (GRCm39) missense probably damaging 1.00
Z1176:Scn2a UTSW 2 65,582,212 (GRCm39) missense possibly damaging 0.84
Z1177:Scn2a UTSW 2 65,548,079 (GRCm39) missense probably benign 0.07
Predicted Primers PCR Primer
(F):5'- GTGGCGTTGAAACTGTATACAACC -3'
(R):5'- TTTAGCCCCTCCAAATACTGGC -3'

Sequencing Primer
(F):5'- GCGTTGAAACTGTATACAACCTATGC -3'
(R):5'- TGGCACAGTTTTAAAAGAAACCC -3'
Posted On 2014-08-25