Incidental Mutation 'R1168:Cacna1a'
ID 101332
Institutional Source Beutler Lab
Gene Symbol Cacna1a
Ensembl Gene ENSMUSG00000034656
Gene Name calcium channel, voltage-dependent, P/Q type, alpha 1A subunit
Synonyms Cacnl1a4, Ccha1a, SCA6, alpha1A, smrl, nmf352
MMRRC Submission 039241-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.936) question?
Stock # R1168 (G1)
Quality Score 225
Status Not validated
Chromosome 8
Chromosomal Location 85065268-85366875 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 85306130 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Valine at position 1293 (I1293V)
Ref Sequence ENSEMBL: ENSMUSP00000112436 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000121390] [ENSMUST00000122053]
AlphaFold P97445
Predicted Effect probably damaging
Transcript: ENSMUST00000121390
AA Change: I1293V

PolyPhen 2 Score 0.995 (Sensitivity: 0.68; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000112436
Gene: ENSMUSG00000034656
AA Change: I1293V

DomainStartEndE-ValueType
low complexity region 9 47 N/A INTRINSIC
Pfam:Ion_trans 99 373 1.5e-69 PFAM
Pfam:Ion_trans 488 727 1.2e-54 PFAM
Pfam:PKD_channel 578 721 6.6e-8 PFAM
low complexity region 920 959 N/A INTRINSIC
low complexity region 977 987 N/A INTRINSIC
low complexity region 1074 1093 N/A INTRINSIC
low complexity region 1143 1168 N/A INTRINSIC
Pfam:Ion_trans 1194 1472 4.9e-64 PFAM
Pfam:Ion_trans 1516 1773 2.8e-64 PFAM
Pfam:GPHH 1775 1844 5.6e-39 PFAM
Ca_chan_IQ 1899 1933 1.8e-12 SMART
AT_hook 2053 2065 2.02e0 SMART
low complexity region 2101 2113 N/A INTRINSIC
low complexity region 2153 2179 N/A INTRINSIC
low complexity region 2213 2236 N/A INTRINSIC
low complexity region 2253 2282 N/A INTRINSIC
low complexity region 2314 2325 N/A INTRINSIC
low complexity region 2342 2357 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000122053
AA Change: I1246V

PolyPhen 2 Score 0.061 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000114055
Gene: ENSMUSG00000034656
AA Change: I1246V

DomainStartEndE-ValueType
low complexity region 9 47 N/A INTRINSIC
Pfam:Ion_trans 91 314 4.5e-58 PFAM
PDB:4DEX|B 317 427 5e-45 PDB
Pfam:Ion_trans 476 668 6.4e-46 PFAM
Pfam:PKD_channel 530 675 7.7e-8 PFAM
low complexity region 873 912 N/A INTRINSIC
low complexity region 930 940 N/A INTRINSIC
low complexity region 1027 1046 N/A INTRINSIC
low complexity region 1096 1121 N/A INTRINSIC
Pfam:Ion_trans 1183 1414 2.8e-54 PFAM
Pfam:Ion_trans 1504 1714 3.2e-60 PFAM
Ca_chan_IQ 1852 1886 1.8e-12 SMART
AT_hook 2006 2018 2.02e0 SMART
low complexity region 2054 2066 N/A INTRINSIC
low complexity region 2106 2132 N/A INTRINSIC
low complexity region 2166 2189 N/A INTRINSIC
low complexity region 2206 2235 N/A INTRINSIC
low complexity region 2267 2278 N/A INTRINSIC
low complexity region 2295 2310 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000126302
Predicted Effect unknown
Transcript: ENSMUST00000215756
AA Change: I1245V
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.1%
  • 10x: 95.2%
  • 20x: 88.8%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Voltage-dependent calcium channels mediate the entry of calcium ions into excitable cells, and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, and gene expression. Calcium channels are multisubunit complexes composed of alpha-1, beta, alpha-2/delta, and gamma subunits. The channel activity is directed by the pore-forming alpha-1 subunit, whereas, the others act as auxiliary subunits regulating this activity. The distinctive properties of the calcium channel types are related primarily to the expression of a variety of alpha-1 isoforms, alpha-1A, B, C, D, E, and S. This gene encodes the alpha-1A subunit, which is predominantly expressed in neuronal tissue. Mutations in this gene are associated with 2 neurologic disorders, familial hemiplegic migraine and episodic ataxia 2. This gene also exhibits polymorphic variation due to (CAG)n-repeats. Multiple transcript variants encoding different isoforms have been found for this gene. In one set of transcript variants, the (CAG)n-repeats occur in the 3' UTR, and are not associated with any disease. But in another set of variants, an insertion extends the coding region to include the (CAG)n-repeats which encode a polyglutamine tract. Expansion of the (CAG)n-repeats from the normal 4-18 to 21-33 in the coding region is associated with spinocerebellar ataxia 6. [provided by RefSeq, Jul 2016]
PHENOTYPE: Homozygotes for different mutant alleles are characterized by variably severe wobbly gait beginning prior to weaning, ataxia, episodic dyskinesia, cerebellar atrophy, and absence epilepsy. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 80 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1110002E22Rik T C 3: 137,773,661 (GRCm39) V950A probably benign Het
Adgrb3 A T 1: 25,865,280 (GRCm39) S188T probably benign Het
Ahr A T 12: 35,554,531 (GRCm39) N529K possibly damaging Het
Akr1c21 A G 13: 4,633,836 (GRCm39) N302D probably benign Het
Aldh8a1 T A 10: 21,260,530 (GRCm39) probably null Het
Alpk3 A T 7: 80,753,105 (GRCm39) K1554M probably damaging Het
Arhgef5 T A 6: 43,250,330 (GRCm39) H360Q probably benign Het
Cacna2d4 C T 6: 119,284,247 (GRCm39) R745W probably damaging Het
Cd200r4 T A 16: 44,653,307 (GRCm39) W72R probably damaging Het
Ces2e A T 8: 105,653,646 (GRCm39) D28V possibly damaging Het
Cfap20dc T C 14: 8,442,939 (GRCm38) N610S probably benign Het
Cfap45 T C 1: 172,373,264 (GRCm39) Y534H probably damaging Het
Cfap54 A T 10: 92,773,782 (GRCm39) C87S probably damaging Het
Chmp7 C T 14: 69,956,899 (GRCm39) M336I probably benign Het
Chrna4 T A 2: 180,675,931 (GRCm39) M67L possibly damaging Het
Cplx3 G A 9: 57,515,595 (GRCm39) R427C probably benign Het
Cts7 T A 13: 61,501,631 (GRCm39) N290Y probably damaging Het
Enpp6 A T 8: 47,483,489 (GRCm39) M94L probably damaging Het
Fam83d C T 2: 158,610,443 (GRCm39) A137V probably benign Het
Foxd2 C T 4: 114,764,875 (GRCm39) A382T possibly damaging Het
Galnt11 T G 5: 25,455,244 (GRCm39) S193R probably damaging Het
Gapvd1 A T 2: 34,594,481 (GRCm39) D856E probably damaging Het
Gclm T A 3: 122,056,337 (GRCm39) H86Q possibly damaging Het
Gipc2 T C 3: 151,813,634 (GRCm39) T220A probably benign Het
Gm12185 G T 11: 48,806,182 (GRCm39) N336K possibly damaging Het
Gm5431 A T 11: 48,786,191 (GRCm39) S61R probably benign Het
Gorasp2 C T 2: 70,518,744 (GRCm39) P260S probably damaging Het
H2-M10.6 A G 17: 37,124,052 (GRCm39) Q172R probably benign Het
Ibsp A G 5: 104,450,018 (GRCm39) I6V probably damaging Het
Iqsec1 T C 6: 90,666,658 (GRCm39) Y593C probably damaging Het
Irag1 T C 7: 110,495,138 (GRCm39) K429R probably damaging Het
Itln1 G T 1: 171,359,119 (GRCm39) Y61* probably null Het
Kif21a G A 15: 90,877,956 (GRCm39) T284I probably damaging Het
Kif3a G A 11: 53,489,139 (GRCm39) G621R probably damaging Het
Klb A G 5: 65,536,317 (GRCm39) Y549C probably damaging Het
Lrrc37 T C 11: 103,509,776 (GRCm39) probably benign Het
Map4 T C 9: 109,864,032 (GRCm39) V419A probably benign Het
Mastl A T 2: 23,023,144 (GRCm39) D526E probably benign Het
Mtif2 A G 11: 29,486,914 (GRCm39) D308G probably benign Het
Ncald A G 15: 37,397,578 (GRCm39) F34S probably damaging Het
Ndc1 A G 4: 107,253,009 (GRCm39) T593A probably benign Het
Ndst3 C T 3: 123,400,617 (GRCm39) V15I probably benign Het
Nup214 A G 2: 31,915,313 (GRCm39) N1166D probably benign Het
Or1a1 A G 11: 74,087,247 (GRCm39) H306R probably benign Het
Or2ad1 A G 13: 21,326,787 (GRCm39) S147P probably benign Het
Or4a68 G A 2: 89,270,213 (GRCm39) Q137* probably null Het
Or5m8 A T 2: 85,823,028 (GRCm39) Y289F probably damaging Het
Pcdhb8 T C 18: 37,489,780 (GRCm39) I486T probably benign Het
Pdzrn4 A T 15: 92,668,152 (GRCm39) Y768F probably benign Het
Pgf A G 12: 85,218,541 (GRCm39) S70P probably benign Het
Plcl2 G A 17: 50,914,100 (GRCm39) A370T possibly damaging Het
Pnkp T A 7: 44,511,961 (GRCm39) W115R probably benign Het
Ppp1r16a C T 15: 76,577,869 (GRCm39) Q328* probably null Het
Prag1 A G 8: 36,613,799 (GRCm39) E1117G probably damaging Het
Prr12 T A 7: 44,678,471 (GRCm39) Q1919L unknown Het
Ret G T 6: 118,150,519 (GRCm39) H666N possibly damaging Het
Rfwd3 C T 8: 112,014,874 (GRCm39) R326Q probably damaging Het
Robo2 C T 16: 73,745,184 (GRCm39) G864S probably damaging Het
Rpa2 T G 4: 132,499,171 (GRCm39) I80S probably damaging Het
Ryk A T 9: 102,775,674 (GRCm39) D428V probably damaging Het
Slc29a1 A T 17: 45,901,204 (GRCm39) N30K probably damaging Het
Stbd1 A G 5: 92,752,795 (GRCm39) N95S probably benign Het
Tbc1d22a A G 15: 86,176,335 (GRCm39) E212G probably benign Het
Tex14 A G 11: 87,427,568 (GRCm39) T7A probably benign Het
Tmc8 T C 11: 117,683,389 (GRCm39) V648A possibly damaging Het
Tmem132b G T 5: 125,864,083 (GRCm39) V730F probably damaging Het
Tmub2 G A 11: 102,178,196 (GRCm39) G33D possibly damaging Het
Trak1 G A 9: 121,269,745 (GRCm39) D124N probably damaging Het
Ttc28 A T 5: 111,378,977 (GRCm39) Y1154F probably damaging Het
Ttn T C 2: 76,739,713 (GRCm39) T3609A probably benign Het
Tulp2 A G 7: 45,167,266 (GRCm39) T99A probably benign Het
Ugt2a2 A T 5: 87,613,427 (GRCm39) probably null Het
Ush2a G A 1: 188,410,608 (GRCm39) V2419I probably benign Het
Vill C A 9: 118,899,389 (GRCm39) P343Q probably damaging Het
Vmn2r66 T A 7: 84,656,062 (GRCm39) H318L possibly damaging Het
Wdr3 A C 3: 100,049,535 (GRCm39) N800K probably benign Het
Wdr93 A G 7: 79,398,922 (GRCm39) K19E probably damaging Het
Wrn A G 8: 33,806,436 (GRCm39) S333P probably damaging Het
Zfp418 T C 7: 7,185,500 (GRCm39) S488P possibly damaging Het
Zfp804a A G 2: 82,087,041 (GRCm39) E290G probably benign Het
Other mutations in Cacna1a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00507:Cacna1a APN 8 85,297,837 (GRCm39) nonsense probably null
IGL00513:Cacna1a APN 8 85,279,685 (GRCm39) missense probably damaging 1.00
IGL00569:Cacna1a APN 8 85,189,343 (GRCm39) missense probably damaging 1.00
IGL00981:Cacna1a APN 8 85,275,182 (GRCm39) missense probably damaging 1.00
IGL01122:Cacna1a APN 8 85,341,422 (GRCm39) critical splice donor site probably null
IGL01309:Cacna1a APN 8 85,249,657 (GRCm39) missense probably damaging 1.00
IGL01380:Cacna1a APN 8 85,285,746 (GRCm39) missense probably damaging 1.00
IGL01638:Cacna1a APN 8 85,298,456 (GRCm39) missense probably damaging 0.98
IGL01682:Cacna1a APN 8 85,263,067 (GRCm39) missense possibly damaging 0.71
IGL02751:Cacna1a APN 8 85,296,581 (GRCm39) missense probably damaging 1.00
IGL02904:Cacna1a APN 8 85,306,149 (GRCm39) missense probably damaging 1.00
IGL03122:Cacna1a APN 8 85,189,305 (GRCm39) splice site probably benign
totter UTSW 8 85,315,382 (GRCm39) missense probably damaging 0.99
totter2 UTSW 8 85,315,382 (GRCm39) missense probably damaging 0.99
FR4340:Cacna1a UTSW 8 85,365,352 (GRCm39) small insertion probably benign
FR4449:Cacna1a UTSW 8 85,365,352 (GRCm39) small insertion probably benign
FR4449:Cacna1a UTSW 8 85,365,349 (GRCm39) small insertion probably benign
FR4449:Cacna1a UTSW 8 85,365,343 (GRCm39) small insertion probably benign
FR4548:Cacna1a UTSW 8 85,365,346 (GRCm39) small insertion probably benign
FR4737:Cacna1a UTSW 8 85,365,355 (GRCm39) small insertion probably benign
FR4737:Cacna1a UTSW 8 85,365,349 (GRCm39) small insertion probably benign
FR4976:Cacna1a UTSW 8 85,365,355 (GRCm39) small insertion probably benign
FR4976:Cacna1a UTSW 8 85,365,346 (GRCm39) small insertion probably benign
IGL03134:Cacna1a UTSW 8 85,285,716 (GRCm39) missense probably damaging 1.00
R0055:Cacna1a UTSW 8 85,306,687 (GRCm39) splice site probably benign
R0118:Cacna1a UTSW 8 85,262,712 (GRCm39) missense probably damaging 1.00
R0284:Cacna1a UTSW 8 85,338,914 (GRCm39) missense probably damaging 1.00
R0581:Cacna1a UTSW 8 85,328,565 (GRCm39) missense possibly damaging 0.83
R0607:Cacna1a UTSW 8 85,356,460 (GRCm39) missense probably damaging 1.00
R1183:Cacna1a UTSW 8 85,306,846 (GRCm39) missense probably damaging 1.00
R1470:Cacna1a UTSW 8 85,241,579 (GRCm39) splice site probably benign
R1503:Cacna1a UTSW 8 85,328,575 (GRCm39) missense probably benign 0.23
R1522:Cacna1a UTSW 8 85,360,062 (GRCm39) missense probably benign 0.00
R1835:Cacna1a UTSW 8 85,307,986 (GRCm39) splice site probably null
R1862:Cacna1a UTSW 8 85,142,559 (GRCm39) missense possibly damaging 0.80
R2148:Cacna1a UTSW 8 85,356,304 (GRCm39) missense possibly damaging 0.71
R2237:Cacna1a UTSW 8 85,360,394 (GRCm39) critical splice donor site probably null
R2567:Cacna1a UTSW 8 85,276,354 (GRCm39) missense probably damaging 1.00
R2999:Cacna1a UTSW 8 85,294,371 (GRCm39) missense probably damaging 1.00
R3025:Cacna1a UTSW 8 85,306,854 (GRCm39) critical splice donor site probably null
R3610:Cacna1a UTSW 8 85,285,694 (GRCm39) missense probably damaging 1.00
R3702:Cacna1a UTSW 8 85,344,475 (GRCm39) missense probably damaging 0.98
R3763:Cacna1a UTSW 8 85,310,271 (GRCm39) missense possibly damaging 0.85
R4025:Cacna1a UTSW 8 85,307,962 (GRCm39) missense probably damaging 1.00
R4026:Cacna1a UTSW 8 85,307,962 (GRCm39) missense probably damaging 1.00
R4106:Cacna1a UTSW 8 85,310,324 (GRCm39) missense possibly damaging 0.85
R4296:Cacna1a UTSW 8 85,285,922 (GRCm39) missense probably damaging 1.00
R4664:Cacna1a UTSW 8 85,328,396 (GRCm39) nonsense probably null
R4713:Cacna1a UTSW 8 85,276,143 (GRCm39) missense probably damaging 1.00
R5223:Cacna1a UTSW 8 85,313,824 (GRCm39) missense possibly damaging 0.94
R5408:Cacna1a UTSW 8 85,276,336 (GRCm39) missense probably damaging 1.00
R5644:Cacna1a UTSW 8 85,189,406 (GRCm39) missense probably damaging 1.00
R5734:Cacna1a UTSW 8 85,310,360 (GRCm39) missense probably damaging 0.96
R5786:Cacna1a UTSW 8 85,142,350 (GRCm39) unclassified probably benign
R5833:Cacna1a UTSW 8 85,245,326 (GRCm39) missense probably damaging 1.00
R5886:Cacna1a UTSW 8 85,249,651 (GRCm39) missense probably damaging 0.99
R6049:Cacna1a UTSW 8 85,365,475 (GRCm39) missense probably damaging 0.96
R6054:Cacna1a UTSW 8 85,283,414 (GRCm39) missense probably damaging 0.99
R6117:Cacna1a UTSW 8 85,341,350 (GRCm39) missense probably damaging 1.00
R6149:Cacna1a UTSW 8 85,296,581 (GRCm39) missense probably damaging 1.00
R6195:Cacna1a UTSW 8 85,315,382 (GRCm39) missense probably damaging 0.99
R6233:Cacna1a UTSW 8 85,315,382 (GRCm39) missense probably damaging 0.99
R6607:Cacna1a UTSW 8 85,306,121 (GRCm39) missense probably damaging 1.00
R6753:Cacna1a UTSW 8 85,306,834 (GRCm39) missense probably damaging 1.00
R6798:Cacna1a UTSW 8 85,338,231 (GRCm39) missense probably damaging 1.00
R6831:Cacna1a UTSW 8 85,297,860 (GRCm39) missense probably damaging 1.00
R6980:Cacna1a UTSW 8 85,338,914 (GRCm39) missense possibly damaging 0.85
R7051:Cacna1a UTSW 8 85,356,544 (GRCm39) missense possibly damaging 0.85
R7270:Cacna1a UTSW 8 85,297,866 (GRCm39) missense probably damaging 1.00
R7409:Cacna1a UTSW 8 85,260,031 (GRCm39) missense probably damaging 1.00
R7491:Cacna1a UTSW 8 85,285,922 (GRCm39) missense possibly damaging 0.92
R7511:Cacna1a UTSW 8 85,294,311 (GRCm39) missense possibly damaging 0.75
R7745:Cacna1a UTSW 8 85,286,023 (GRCm39) missense probably benign 0.01
R7872:Cacna1a UTSW 8 85,310,283 (GRCm39) missense probably damaging 1.00
R7899:Cacna1a UTSW 8 85,320,802 (GRCm39) missense possibly damaging 0.72
R7986:Cacna1a UTSW 8 85,365,408 (GRCm39) missense probably benign 0.02
R8126:Cacna1a UTSW 8 85,359,881 (GRCm39) missense probably benign 0.02
R8266:Cacna1a UTSW 8 85,285,848 (GRCm39) missense probably damaging 1.00
R8458:Cacna1a UTSW 8 85,276,087 (GRCm39) missense probably damaging 1.00
R8504:Cacna1a UTSW 8 85,365,370 (GRCm39) missense probably benign
R8530:Cacna1a UTSW 8 85,339,043 (GRCm39) critical splice donor site probably null
R8750:Cacna1a UTSW 8 85,285,784 (GRCm39) missense probably damaging 0.99
R8817:Cacna1a UTSW 8 85,365,426 (GRCm39) missense probably benign 0.44
R8856:Cacna1a UTSW 8 85,286,070 (GRCm39) missense probably benign 0.30
R8893:Cacna1a UTSW 8 85,313,764 (GRCm39) missense probably benign 0.00
R9083:Cacna1a UTSW 8 85,344,511 (GRCm39) missense probably benign 0.30
R9087:Cacna1a UTSW 8 85,365,432 (GRCm39) missense probably benign 0.44
R9118:Cacna1a UTSW 8 85,262,715 (GRCm39) missense probably damaging 1.00
R9133:Cacna1a UTSW 8 85,276,152 (GRCm39) missense probably damaging 1.00
R9175:Cacna1a UTSW 8 85,296,644 (GRCm39) missense probably damaging 0.99
R9233:Cacna1a UTSW 8 85,271,283 (GRCm39) missense probably damaging 1.00
R9310:Cacna1a UTSW 8 85,263,046 (GRCm39) missense probably damaging 1.00
R9331:Cacna1a UTSW 8 85,142,446 (GRCm39) missense probably damaging 1.00
R9334:Cacna1a UTSW 8 85,296,594 (GRCm39) missense probably damaging 1.00
R9531:Cacna1a UTSW 8 85,320,801 (GRCm39) missense probably benign 0.02
R9532:Cacna1a UTSW 8 85,338,246 (GRCm39) missense probably damaging 1.00
R9590:Cacna1a UTSW 8 85,328,610 (GRCm39) nonsense probably null
R9710:Cacna1a UTSW 8 85,320,808 (GRCm39) missense possibly damaging 0.74
RF029:Cacna1a UTSW 8 85,365,353 (GRCm39) small insertion probably benign
X0022:Cacna1a UTSW 8 85,360,328 (GRCm39) missense possibly damaging 0.53
Z1176:Cacna1a UTSW 8 85,142,305 (GRCm39) missense unknown
Z1177:Cacna1a UTSW 8 85,306,120 (GRCm39) missense probably damaging 1.00
Z1188:Cacna1a UTSW 8 85,241,683 (GRCm39) missense probably damaging 1.00
Predicted Primers
Posted On 2014-01-15