Incidental Mutation 'R9083:Cacna1a'
ID 690400
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 068902-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.924) question?
Stock # R9083 (G1)
Quality Score 225.009
Status Validated
Chromosome 8
Chromosomal Location 85065268-85366875 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 85344511 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Valine at position 1858 (I1858V)
Ref Sequence ENSEMBL: ENSMUSP00000112436 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000121390] [ENSMUST00000122053]
AlphaFold P97445
Predicted Effect probably benign
Transcript: ENSMUST00000121390
AA Change: I1858V

PolyPhen 2 Score 0.300 (Sensitivity: 0.90; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000112436
Gene: ENSMUSG00000034656
AA Change: I1858V

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: I1811V

PolyPhen 2 Score 0.024 (Sensitivity: 0.95; Specificity: 0.81)
SMART Domains Protein: ENSMUSP00000114055
Gene: ENSMUSG00000034656
AA Change: I1811V

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
Meta Mutation Damage Score 0.1718 question?
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.6%
  • 20x: 98.5%
Validation Efficiency 100% (61/61)
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: 61 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
A2ml1 A T 6: 128,534,524 (GRCm39) S844R possibly damaging Het
Adig C A 2: 158,347,709 (GRCm39) probably benign Het
Aspm A G 1: 139,421,436 (GRCm39) N3106S possibly damaging Het
Bcas1 A T 2: 170,190,081 (GRCm39) probably benign Het
Bco1 A C 8: 117,844,143 (GRCm39) I286L probably benign Het
Bnc1 C T 7: 81,624,646 (GRCm39) V194I probably benign Het
Bptf G A 11: 106,959,176 (GRCm39) R1912W probably damaging Het
Chdh T C 14: 29,753,703 (GRCm39) F204S probably damaging Het
Cic A G 7: 24,985,470 (GRCm39) T1212A probably damaging Het
Cpne7 C T 8: 123,856,951 (GRCm39) P402L probably damaging Het
Cts8 A G 13: 61,397,036 (GRCm39) Y295H probably damaging Het
Cyp1a2 T C 9: 57,587,572 (GRCm39) T333A probably benign Het
Cyp2a12 T C 7: 26,735,944 (GRCm39) F451S probably damaging Het
Dmxl2 T C 9: 54,316,548 (GRCm39) I1613V probably benign Het
Eme1 A G 11: 94,540,958 (GRCm39) L260S probably damaging Het
Ermp1 A C 19: 29,623,415 (GRCm39) S192A probably benign Het
Fam186a T C 15: 99,843,079 (GRCm39) Q1055R probably benign Het
Fat1 C T 8: 45,466,127 (GRCm39) T1462M possibly damaging Het
Fat1 A G 8: 45,491,336 (GRCm39) N3822S probably benign Het
Gm973 A G 1: 59,675,317 (GRCm39) T225A Het
Gnl2 A G 4: 124,941,357 (GRCm39) Y367C probably damaging Het
Golga5 T A 12: 102,458,476 (GRCm39) S640T probably benign Het
Inafm1 A G 7: 16,007,196 (GRCm39) V7A unknown Het
Irx2 A G 13: 72,777,392 (GRCm39) D71G possibly damaging Het
Kash5 G A 7: 44,854,058 (GRCm39) R24C unknown Het
Kif13a T C 13: 46,966,263 (GRCm39) Y448C probably damaging Het
Lcor G T 19: 41,574,839 (GRCm39) R1198L probably damaging Het
Ldlrad4 A T 18: 68,197,746 (GRCm39) N10I probably benign Het
Lix1 T C 17: 17,677,392 (GRCm39) Y196H possibly damaging Het
Lrrc37 A C 11: 103,509,830 (GRCm39) S713A unknown Het
Mon1a A G 9: 107,779,835 (GRCm39) Y468C probably damaging Het
Mroh4 A T 15: 74,498,140 (GRCm39) I177N probably damaging Het
Mterf4 A T 1: 93,229,515 (GRCm39) Y236* probably null Het
Myo1f T A 17: 33,813,036 (GRCm39) I614N probably damaging Het
Nbas T A 12: 13,385,856 (GRCm39) S707T possibly damaging Het
Ncl A T 1: 86,279,183 (GRCm39) S577T possibly damaging Het
Or10al4 T A 17: 38,037,060 (GRCm39) N48K probably damaging Het
Or52d13 T C 7: 103,109,896 (GRCm39) D173G Het
Or6c2b A T 10: 128,947,892 (GRCm39) M134K probably damaging Het
Or6c69c A T 10: 129,910,941 (GRCm39) M221L probably benign Het
Or6c69c G C 10: 129,910,969 (GRCm39) S230T probably benign Het
Or7g17 A T 9: 18,768,550 (GRCm39) I201F probably benign Het
Or8g17 A G 9: 38,930,016 (GRCm39) S274P probably damaging Het
Padi1 C A 4: 140,559,602 (GRCm39) probably null Het
Patj G A 4: 98,401,871 (GRCm39) V1004M probably benign Het
Pcdhb9 A T 18: 37,535,770 (GRCm39) D588V probably damaging Het
Pdzph1 C A 17: 59,261,395 (GRCm39) R879L possibly damaging Het
Pla2g2c G A 4: 138,463,378 (GRCm39) V91I probably benign Het
Plin4 T C 17: 56,416,345 (GRCm39) D53G possibly damaging Het
Poll T C 19: 45,546,317 (GRCm39) Q241R probably benign Het
Recql5 A T 11: 115,785,475 (GRCm39) L674M possibly damaging Het
Shroom3 G A 5: 93,098,533 (GRCm39) G1338S probably damaging Het
Slc38a8 C T 8: 120,212,780 (GRCm39) V294I probably benign Het
Slc4a1ap T C 5: 31,684,457 (GRCm39) V31A probably benign Het
Tln2 G A 9: 67,269,927 (GRCm39) P489S probably damaging Het
Trappc9 G A 15: 72,608,626 (GRCm39) R928* probably null Het
Uba7 C A 9: 107,855,166 (GRCm39) T343N probably benign Het
Vasn C T 16: 4,467,871 (GRCm39) T606I probably benign Het
Xrn2 T A 2: 146,880,199 (GRCm39) D507E probably damaging Het
Zfp592 T A 7: 80,674,644 (GRCm39) M536K possibly damaging Het
Zfp932 A T 5: 110,157,100 (GRCm39) H266L probably 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
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
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'- TTCAGAGTTCTTCCTGGGGC -3'
(R):5'- CTCTCATCCCTTTGGTTGGAGG -3'

Sequencing Primer
(F):5'- AGTTCTTCCTGGGGCTTCCTG -3'
(R):5'- GTCTGGCACACCTGATCTGTG -3'
Posted On 2021-12-30