Incidental Mutation 'R8750:Cacna1a'
ID 663781
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 068593-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.924) question?
Stock # R8750 (G1)
Quality Score 225.009
Status Not validated
Chromosome 8
Chromosomal Location 85065268-85366875 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to A at 85285784 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Serine at position 810 (R810S)
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: R810S

PolyPhen 2 Score 0.987 (Sensitivity: 0.73; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000112436
Gene: ENSMUSG00000034656
AA Change: R810S

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 damaging
Transcript: ENSMUST00000122053
AA Change: R763S

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000114055
Gene: ENSMUSG00000034656
AA Change: R763S

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
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.6%
  • 20x: 98.6%
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: 72 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adam21 G A 12: 81,607,247 (GRCm39) Q172* probably null Het
Ankib1 A G 5: 3,752,890 (GRCm39) probably null Het
Avpr1b C T 1: 131,527,674 (GRCm39) R66C probably damaging Het
Bbs7 A T 3: 36,661,744 (GRCm39) C152S possibly damaging Het
Ccdc17 G A 4: 116,457,129 (GRCm39) A538T possibly damaging Het
Cd93 T C 2: 148,285,080 (GRCm39) M89V probably benign Het
Clec11a G T 7: 43,955,323 (GRCm39) D157E probably benign Het
Crtam A C 9: 40,895,641 (GRCm39) D228E probably benign Het
Cyp2a4 A G 7: 26,012,209 (GRCm39) I331V probably benign Het
Cysltr2 T C 14: 73,267,078 (GRCm39) I211V probably benign Het
Dcaf13 T C 15: 38,982,836 (GRCm39) S123P probably damaging Het
Dctn1 T G 6: 83,160,108 (GRCm39) V116G possibly damaging Het
Dmrt3 G A 19: 25,588,550 (GRCm39) A130T probably benign Het
Dnah1 A T 14: 31,026,924 (GRCm39) L700Q probably benign Het
Dnajc1 T C 2: 18,313,645 (GRCm39) T159A probably damaging Het
Dpyd C T 3: 118,935,585 (GRCm39) S670L probably damaging Het
Dsg2 A T 18: 20,708,069 (GRCm39) I57F possibly damaging Het
Dzip3 A C 16: 48,801,338 (GRCm39) I62S probably damaging Het
Ern1 A T 11: 106,312,776 (GRCm39) S202T probably damaging Het
Foxm1 T A 6: 128,350,206 (GRCm39) C517* probably null Het
Galnt16 G A 12: 80,644,879 (GRCm39) V501I probably benign Het
Gmip A T 8: 70,273,134 (GRCm39) R840S probably benign Het
Gna14 A C 19: 16,585,458 (GRCm39) I279L Het
Irak2 T C 6: 113,663,783 (GRCm39) M444T probably benign Het
Itfg2 T C 6: 128,389,755 (GRCm39) probably null Het
Kif5a T A 10: 127,083,909 (GRCm39) H94L probably damaging Het
Kmt2e A G 5: 23,698,215 (GRCm39) T636A probably benign Het
Krba1 T C 6: 48,382,212 (GRCm39) S152P probably damaging Het
Mad1l1 T A 5: 140,300,822 (GRCm39) M25L probably benign Het
Map7d1 T C 4: 126,132,315 (GRCm39) N286D probably benign Het
Mfrp A G 9: 44,014,802 (GRCm39) K280E probably benign Het
Mlh3 G T 12: 85,308,488 (GRCm39) L1100I probably damaging Het
Mrgprx2 T C 7: 48,131,778 (GRCm39) I347V probably benign Het
Mtnr1b A T 9: 15,785,724 (GRCm39) C11* probably null Het
Mx1 T C 16: 97,252,917 (GRCm39) E401G probably damaging Het
Mypn T C 10: 63,003,036 (GRCm39) D367G probably benign Het
Nherf2 T C 17: 24,861,233 (GRCm39) I176V probably damaging Het
Or52a33 T A 7: 103,289,059 (GRCm39) D96V probably damaging Het
Or6c5b T C 10: 129,245,649 (GRCm39) V138A probably benign Het
Or8s8 T G 15: 98,354,929 (GRCm39) I246R probably damaging Het
Or9g19 T A 2: 85,600,307 (GRCm39) L54H probably damaging Het
Plcb1 T G 2: 135,177,369 (GRCm39) M567R probably damaging Het
Plekhd1 A T 12: 80,752,861 (GRCm39) D109V probably damaging Het
Polr2e A G 10: 79,875,424 (GRCm39) I17T probably benign Het
Pot1b T C 17: 55,973,537 (GRCm39) D421G probably benign Het
Prkar1b A T 5: 139,036,451 (GRCm39) W224R probably damaging Het
Psmd1 C A 1: 86,016,585 (GRCm39) R490S probably damaging Het
Pwp2 A G 10: 78,013,659 (GRCm39) W521R probably damaging Het
Rhpn2 C A 7: 35,075,680 (GRCm39) Q286K probably benign Het
Rnf103 T A 6: 71,486,602 (GRCm39) M411K probably benign Het
Scpep1 A C 11: 88,835,298 (GRCm39) V125G probably damaging Het
Serpinb9c C T 13: 33,335,793 (GRCm39) V248M probably null Het
Snx15 T A 19: 6,170,593 (GRCm39) N282I probably benign Het
Spaca3 A T 11: 80,758,514 (GRCm39) D159V probably benign Het
Srrm4 A G 5: 116,605,567 (GRCm39) V230A unknown Het
Ssu2 T A 6: 112,359,312 (GRCm39) I103F possibly damaging Het
Strip2 T A 6: 29,931,815 (GRCm39) F453I probably damaging Het
Tac2 C T 10: 127,564,319 (GRCm39) P72L possibly damaging Het
Tiparp T G 3: 65,460,125 (GRCm39) S473R probably damaging Het
Tmem135 C T 7: 88,956,456 (GRCm39) R53Q probably damaging Het
Tmem200b T A 4: 131,649,406 (GRCm39) F109I probably damaging Het
Tmem245 A T 4: 56,886,141 (GRCm39) I825N probably damaging Het
Tmem63c G T 12: 87,103,306 (GRCm39) V27F probably damaging Het
Tshz1 T C 18: 84,033,162 (GRCm39) I415M probably damaging Het
Tut4 C G 4: 108,407,940 (GRCm39) A1403G probably damaging Het
Wfdc2 T A 2: 164,407,818 (GRCm39) N162K probably damaging Het
Zeb2 T A 2: 44,887,939 (GRCm39) I373F probably damaging Het
Zfp27 T C 7: 29,594,804 (GRCm39) N387S possibly damaging Het
Zfp760 A T 17: 21,941,356 (GRCm39) H177L possibly damaging Het
Zg16 A G 7: 126,649,518 (GRCm39) S148P possibly damaging Het
Zic2 A G 14: 122,714,129 (GRCm39) N348D probably benign Het
Zswim4 A T 8: 84,939,313 (GRCm39) D856E possibly damaging 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
R1168:Cacna1a UTSW 8 85,306,130 (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
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 PCR Primer
(F):5'- AAGAATCCACTGGAGTTGCGG -3'
(R):5'- ACTCACTTTCTGCGTCGGTG -3'

Sequencing Primer
(F):5'- GTTGTCAACACCTTCGTTATCCG -3'
(R):5'- ATACGGGCCCTCTCGTC -3'
Posted On 2021-03-08