Mutagenetix > Incidental Mutation

Incidental Mutation 'R8305:Scn8a'

641025

Institutional Source

Beutler Lab

Gene Symbol

Scn8a

Ensembl Gene

ENSMUSG00000023033

Gene Name

sodium channel, voltage-gated, type VIII, alpha

Synonyms

mnd2, C630029C19Rik, nmf58, NMF335, mnd-2, seal, motor end-plate disease, nur14, Nav1.6, med, ataxia 3, nmf2, nmf335, NaCh6

MMRRC Submission

Accession Numbers

Genbank: NM_001077499, NM_011323; MGI: 103169

Is this an essential gene?

Probably essential (E-score: 0.775) question?

Stock #

R8305 (G1)

Quality Score

225.009

Status

Validated

Chromosome

Chromosomal Location

100869858-101045938 bp(+) (GRCm38)

Type of Mutation

missense

DNA Base Change (assembly)

A to C at 101040506 bp (GRCm38)

Zygosity

Heterozygous

Amino Acid Change

Threonine to Proline at position 1919 (T1919P)

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

probably benign
Transcript: ENSMUST00000082209
AA Change: T1919P

PolyPhen 2 Score 0.026 (Sensitivity: 0.95; Specificity: 0.81)

SMART Domains

Protein: ENSMUSP00000080842
Gene: ENSMUSG00000023033
AA Change: T1919P

Domain	Start	End	E-Value	Type
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: T1919P

PolyPhen 2 Score 0.006 (Sensitivity: 0.97; Specificity: 0.75)

SMART Domains

Protein: ENSMUSP00000104536
Gene: ENSMUSG00000023033
AA Change: T1919P

Domain	Start	End	E-Value	Type
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

unknown
Transcript: ENSMUST00000108909
AA Change: T1929P

SMART Domains

Protein: ENSMUSP00000104537
Gene: ENSMUSG00000023033
AA Change: T1929P

Domain	Start	End	E-Value	Type
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: T1919P

PolyPhen 2 Score 0.006 (Sensitivity: 0.97; Specificity: 0.75)

SMART Domains

Protein: ENSMUSP00000104538
Gene: ENSMUSG00000023033
AA Change: T1919P

Domain	Start	End	E-Value	Type
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: T1878P

PolyPhen 2 Score 0.017 (Sensitivity: 0.95; Specificity: 0.80)

SMART Domains

Protein: ENSMUSP00000144371
Gene: ENSMUSG00000023033
AA Change: T1878P

Domain	Start	End	E-Value	Type
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: T1919P

PolyPhen 2 Score 0.026 (Sensitivity: 0.95; Specificity: 0.81)

SMART Domains

Protein: ENSMUSP00000144013
Gene: ENSMUSG00000023033
AA Change: T1919P

Domain	Start	End	E-Value	Type
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: 100.0%
3x: 99.9%
10x: 99.6%
20x: 98.9%

Validation Efficiency

98% (65/66)

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
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
4930578I06Rik	C	T	14: 63,971,395	E243K	possibly damaging	Het
Accsl	A	T	2: 93,866,078	H58Q	probably benign	Het
Actl7a	T	A	4: 56,743,744	F90L	probably benign	Het
Adam5	G	A	8: 24,810,703	A270V	possibly damaging	Het
Angptl3	A	G	4: 99,031,311	T103A	probably damaging	Het
Ankhd1	T	C	18: 36,647,166	L1757P	possibly damaging	Het
Apoa4	T	A	9: 46,241,155	M1K	probably null	Het
Arih1	T	A	9: 59,396,487	Q445L	probably benign	Het
Asb14	A	T	14: 26,912,097	I420L	probably benign	Het
Bbs2	A	C	8: 94,074,325	V626G	probably damaging	Het
BC089597	T	A	10: 127,876,995	D287E	probably damaging	Het
Cep290	C	A	10: 100,544,934	A1678D	probably benign	Het
Cilp	G	A	9: 65,279,004	G794S	probably damaging	Het
Clca3a1	C	T	3: 144,759,166		probably benign	Het
Clca3b	T	A	3: 144,825,937	N702I	probably damaging	Het
Col24a1	T	C	3: 145,474,182	V1143A	probably benign	Het
Cux1	T	C	5: 136,360,009	T223A	probably benign	Het
Defa30	A	T	8: 21,135,459	T80S	probably benign	Het
Dennd1a	G	A	2: 37,858,081	L375F	probably damaging	Het
Dnajc6	C	T	4: 101,623,787	T675I	probably damaging	Het
Emc9	A	G	14: 55,585,099	V4A	probably damaging	Het
Enpp3	C	G	10: 24,824,929		probably null	Het
Fam117b	A	G	1: 59,913,623	T154A	probably benign	Het
Filip1	G	T	9: 79,820,475	Y287*	probably null	Het
Flt3	T	C	5: 147,348,054	D751G	probably damaging	Het
Frem1	T	A	4: 82,999,989	Q572L	probably benign	Het
Gja10	G	A	4: 32,602,441		probably benign	Het
Gm7356	T	A	17: 14,001,437	Y110F	probably benign	Het
Igf2r	T	C	17: 12,733,860	K233R	probably benign	Het
Igkv9-129	A	T	6: 67,840,222	E103D	probably benign	Het
Igsf11	C	A	16: 39,007,224	T48N	probably damaging	Het
Itpkc	A	T	7: 27,214,519	Y506N	probably damaging	Het
Kat2a	A	C	11: 100,709,478	M357R	possibly damaging	Het
Kbtbd12	T	C	6: 88,618,150	R233G	possibly damaging	Het
Kcnd2	T	A	6: 21,726,198	C563*	probably null	Het
Kcnu1	T	C	8: 25,891,990	V456A	probably benign	Het
Kif24	A	G	4: 41,428,825	V45A	probably damaging	Het
Macf1	A	T	4: 123,395,621		probably benign	Het
Map3k19	T	A	1: 127,817,270	E1177D		Het
Mdn1	G	T	4: 32,725,107	L2575F	probably benign	Het
Mga	T	A	2: 119,946,319	M1569K	possibly damaging	Het
Mvk	T	C	5: 114,450,779	Y161H	probably damaging	Het
Olfr119	T	A	17: 37,701,498	M276K	probably benign	Het
Olfr134	C	A	17: 38,175,573	T163K	probably damaging	Het
Olfr301	G	T	7: 86,412,779	C139F	probably damaging	Het
Pcdhb14	T	A	18: 37,450,022	V727E	possibly damaging	Het
Pcsk7	T	G	9: 45,910,409	V167G	probably damaging	Het
Plin5	T	C	17: 56,115,221	D146G	probably benign	Het
Plxna4	C	T	6: 32,211,065	G879R	possibly damaging	Het
Prss58	C	T	6: 40,895,660	A171T	probably benign	Het
Pum1	A	G	4: 130,771,920	I1016V	probably benign	Het
Rbm43	A	G	2: 51,926,700	V85A	probably damaging	Het
RP23-56A14.9	A	G	7: 142,135,623	C138R	unknown	Het
Rptor	T	A	11: 119,811,986	L393Q	probably damaging	Het
Sbf2	T	G	7: 110,371,618	H857P	possibly damaging	Het
Sema6b	C	T	17: 56,127,084	G377E	probably damaging	Het
Senp7	T	A	16: 56,155,240	D436E	probably damaging	Het
Slc6a17	T	A	3: 107,473,585	I535F	probably benign	Het
Sptbn2	T	A	19: 4,729,130	S281T	possibly damaging	Het
Stt3b	T	C	9: 115,254,931	I392M	probably damaging	Het
Tfap2b	T	C	1: 19,226,436	V201A	possibly damaging	Het
Timm10b	T	C	7: 105,640,669		probably benign	Het
Ttc23	A	C	7: 67,662,387	D14A	probably damaging	Het
Usp32	A	T	11: 85,032,185	L636I	possibly damaging	Het
Vgll4	G	T	6: 114,890,652	H79Q	probably damaging	Het
Vps13d	A	G	4: 145,092,288	I3047T		Het
Zan	T	C	5: 137,450,551	E1680G	unknown	Het

Other mutations in Scn8a

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL00230:Scn8a	APN	15	100955532	unclassified	probably benign
IGL00979:Scn8a	APN	15	100955406	unclassified	probably benign
IGL01339:Scn8a	APN	15	101032201	missense	probably benign
IGL01992:Scn8a	APN	15	100969057	missense	probably damaging	1.00
IGL02215:Scn8a	APN	15	101029572	splice site	probably null
IGL02311:Scn8a	APN	15	101013283	missense	probably damaging	0.97
IGL02404:Scn8a	APN	15	101039730	missense	probably damaging	1.00
IGL02652:Scn8a	APN	15	101013476	missense	probably damaging	0.98
IGL02690:Scn8a	APN	15	100970254	missense	probably damaging	1.00
IGL02704:Scn8a	APN	15	101008062	missense	possibly damaging	0.94
IGL03084:Scn8a	APN	15	101017172	missense	probably damaging	1.00
IGL03108:Scn8a	APN	15	100974615	missense	probably benign
IGL03224:Scn8a	APN	15	101035639	missense	probably damaging	1.00
dan	UTSW	15	101035624	nonsense	probably null
nymph	UTSW	15	101035646	missense	probably damaging	1.00
Tremord	UTSW	15	101013504	missense	probably damaging	1.00
3-1:Scn8a	UTSW	15	101039939	missense	probably benign	0.04
PIT4280001:Scn8a	UTSW	15	100957489	missense	probably damaging	1.00
PIT4508001:Scn8a	UTSW	15	101029692	missense	probably damaging	0.98
R0010:Scn8a	UTSW	15	101013573	missense	probably damaging	1.00
R0010:Scn8a	UTSW	15	101013573	missense	probably damaging	1.00
R0254:Scn8a	UTSW	15	101018364	missense	probably damaging	1.00
R0412:Scn8a	UTSW	15	101008306	splice site	probably benign
R0538:Scn8a	UTSW	15	101035624	nonsense	probably null
R0539:Scn8a	UTSW	15	101016568	missense	probably damaging	1.00
R0631:Scn8a	UTSW	15	101035537	missense	probably damaging	1.00
R0726:Scn8a	UTSW	15	100972830	missense	probably damaging	1.00
R0945:Scn8a	UTSW	15	101015787	missense	possibly damaging	0.54
R0967:Scn8a	UTSW	15	101035646	missense	probably damaging	1.00
R1164:Scn8a	UTSW	15	101040162	missense	probably benign	0.06
R1283:Scn8a	UTSW	15	100969171	missense	possibly damaging	0.82
R1368:Scn8a	UTSW	15	101035541	missense	probably damaging	1.00
R1633:Scn8a	UTSW	15	101029815	missense	probably benign	0.01
R1669:Scn8a	UTSW	15	101011120	missense	probably damaging	1.00
R1694:Scn8a	UTSW	15	100955528	nonsense	probably null
R1735:Scn8a	UTSW	15	101015861	missense	possibly damaging	0.94
R1773:Scn8a	UTSW	15	101039615	missense	probably damaging	0.97
R1940:Scn8a	UTSW	15	100970204	missense	probably benign	0.22
R1996:Scn8a	UTSW	15	101024379	missense	probably damaging	1.00
R2107:Scn8a	UTSW	15	101018363	missense	probably damaging	0.99
R2251:Scn8a	UTSW	15	101017106	missense	probably benign	0.02
R2516:Scn8a	UTSW	15	100969162	missense	probably benign	0.05
R2917:Scn8a	UTSW	15	101039732	missense	probably damaging	1.00
R3417:Scn8a	UTSW	15	100971668	splice site	probably benign
R3896:Scn8a	UTSW	15	101035498	missense	probably benign
R4024:Scn8a	UTSW	15	101039793	missense	probably damaging	1.00
R4050:Scn8a	UTSW	15	101013413	nonsense	probably null
R4193:Scn8a	UTSW	15	100971603	missense	probably damaging	1.00
R4212:Scn8a	UTSW	15	100957073	missense	possibly damaging	0.88
R4358:Scn8a	UTSW	15	100940133	missense	probably benign	0.00
R4396:Scn8a	UTSW	15	100972830	missense	probably damaging	1.00
R4428:Scn8a	UTSW	15	100983903	missense	probably damaging	1.00
R4452:Scn8a	UTSW	15	100957091	missense	possibly damaging	0.95
R4631:Scn8a	UTSW	15	101016503	nonsense	probably null
R4693:Scn8a	UTSW	15	101015691	missense	probably damaging	1.00
R4765:Scn8a	UTSW	15	101040471	missense	probably benign	0.07
R4777:Scn8a	UTSW	15	101015951	missense	probably damaging	1.00
R4949:Scn8a	UTSW	15	101029782	missense	probably damaging	1.00
R4997:Scn8a	UTSW	15	100957054	missense	probably damaging	1.00
R5246:Scn8a	UTSW	15	101011057	missense	probably damaging	1.00
R5566:Scn8a	UTSW	15	100974534	missense	probably damaging	1.00
R5875:Scn8a	UTSW	15	100972822	nonsense	probably null
R6031:Scn8a	UTSW	15	100983984	missense	probably damaging	1.00
R6031:Scn8a	UTSW	15	100983984	missense	probably damaging	1.00
R6057:Scn8a	UTSW	15	100974667	missense	possibly damaging	0.94
R6114:Scn8a	UTSW	15	101040596	missense	probably damaging	0.99
R6362:Scn8a	UTSW	15	100940115	splice site	probably null
R6535:Scn8a	UTSW	15	100959707	intron	probably benign
R6677:Scn8a	UTSW	15	100969072	missense	probably damaging	1.00
R6687:Scn8a	UTSW	15	100974627	missense	probably benign	0.12
R6701:Scn8a	UTSW	15	101040096	missense	probably damaging	1.00
R6719:Scn8a	UTSW	15	101011015	critical splice acceptor site	probably null
R6739:Scn8a	UTSW	15	101015955	missense	possibly damaging	0.82
R6769:Scn8a	UTSW	15	101035564	missense	probably benign
R6786:Scn8a	UTSW	15	101032215	missense	probably benign	0.00
R6849:Scn8a	UTSW	15	100955587	splice site	probably null
R7108:Scn8a	UTSW	15	101039778	missense	probably benign	0.01
R7215:Scn8a	UTSW	15	101029830	missense	possibly damaging	0.80
R7217:Scn8a	UTSW	15	100970227	missense	probably benign	0.00
R7219:Scn8a	UTSW	15	100969103	missense	probably damaging	1.00
R7356:Scn8a	UTSW	15	100957579	missense	probably damaging	1.00
R7479:Scn8a	UTSW	15	100955477	missense	probably damaging	0.99
R7816:Scn8a	UTSW	15	101011036	missense	possibly damaging	0.63
R7985:Scn8a	UTSW	15	101016962	splice site	probably null
R8112:Scn8a	UTSW	15	101029837	missense	probably benign	0.27
R8263:Scn8a	UTSW	15	100983855	missense	probably damaging	1.00
R8489:Scn8a	UTSW	15	100969133	missense	probably damaging	1.00
R8983:Scn8a	UTSW	15	101002149	missense	possibly damaging	0.81
R9034:Scn8a	UTSW	15	101029761	missense	probably damaging	0.98
R9050:Scn8a	UTSW	15	101008280	missense	possibly damaging	0.80
R9240:Scn8a	UTSW	15	101017187	nonsense	probably null
R9249:Scn8a	UTSW	15	101016575	missense	probably benign	0.00
R9462:Scn8a	UTSW	15	101032278	missense
R9599:Scn8a	UTSW	15	101013291	missense	probably damaging	1.00
R9609:Scn8a	UTSW	15	100936526	missense	possibly damaging	0.91
R9653:Scn8a	UTSW	15	101040066	missense	probably damaging	1.00
R9794:Scn8a	UTSW	15	101035451	missense	probably benign	0.00
X0066:Scn8a	UTSW	15	101040080	missense	probably damaging	1.00
X0066:Scn8a	UTSW	15	101040081	missense	probably damaging	1.00
Z1176:Scn8a	UTSW	15	101033518	missense	probably damaging	1.00
Z1177:Scn8a	UTSW	15	101040222	missense	probably benign	0.00

Predicted Primers

PCR Primer
(F):5'- TTTCGCCTTCACCAAGCGAG -3'
(R):5'- TCTAGCACTTGGACTCCCTG -3'

Sequencing Primer
(F):5'- TTCACCAAGCGAGTCCTGG -3'
(R):5'- AGCACTTGGACTCCCTGACTTC -3'

Posted On

2020-07-28