Incidental Mutation 'R2148:Cacna1a'
ID 234018
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 040151-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.924) question?
Stock # R2148 (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 T at 85356304 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glutamine to Leucine at position 1887 (Q1887L)
Ref Sequence ENSEMBL: ENSMUSP00000112436 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000121390] [ENSMUST00000122053]
AlphaFold P97445
Predicted Effect possibly damaging
Transcript: ENSMUST00000121390
AA Change: Q1887L

PolyPhen 2 Score 0.713 (Sensitivity: 0.86; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000112436
Gene: ENSMUSG00000034656
AA Change: Q1887L

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 possibly damaging
Transcript: ENSMUST00000122053
AA Change: Q1840L

PolyPhen 2 Score 0.518 (Sensitivity: 0.88; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000114055
Gene: ENSMUSG00000034656
AA Change: Q1840L

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: ENSMUST00000144879
Predicted Effect unknown
Transcript: ENSMUST00000215756
AA Change: Q1839L
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.7%
  • 10x: 97.4%
  • 20x: 95.4%
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
Abca12 C A 1: 71,302,647 (GRCm39) V2191L probably benign Het
Abca13 A G 11: 9,565,764 (GRCm39) Y4796C probably damaging Het
Actn2 A T 13: 12,315,835 (GRCm39) M228K probably damaging Het
Agbl1 T G 7: 76,064,465 (GRCm39) probably null Het
Ahi1 T G 10: 20,846,875 (GRCm39) V435G possibly damaging Het
Anxa2 TCCC TCC 9: 69,397,036 (GRCm39) probably null Het
Arfgef1 C T 1: 10,270,103 (GRCm39) A349T probably benign Het
Arhgap6 A G X: 167,579,496 (GRCm39) T94A probably benign Het
Atg4c C A 4: 99,109,463 (GRCm39) N143K possibly damaging Het
Bcor G A X: 11,923,862 (GRCm39) A578V possibly damaging Het
Bop1 A G 15: 76,339,487 (GRCm39) V286A probably damaging Het
C1qtnf12 A G 4: 156,050,922 (GRCm39) N297S probably benign Het
Cadps2 G T 6: 23,838,998 (GRCm39) probably benign Het
Chl1 T C 6: 103,692,362 (GRCm39) probably null Het
Cnot2 A G 10: 116,342,185 (GRCm39) I173T probably benign Het
Cntnap5b T A 1: 100,311,199 (GRCm39) I564N probably benign Het
Csmd3 CCTTTGCGCTT CCTT 15: 47,604,632 (GRCm39) probably null Het
Cyp2j11 G A 4: 96,204,595 (GRCm39) T317I probably damaging Het
Dcaf8l T C X: 88,449,883 (GRCm39) D82G possibly damaging Het
Dennd3 A T 15: 73,426,909 (GRCm39) H762L probably benign Het
Dgkd T G 1: 87,809,643 (GRCm39) N110K probably damaging Het
Dhx8 A T 11: 101,629,203 (GRCm39) R198* probably null Het
Dnah8 A T 17: 30,956,232 (GRCm39) I2071F probably damaging Het
Dsc3 C T 18: 20,098,695 (GRCm39) R828Q probably damaging Het
Fbxl4 T C 4: 22,427,333 (GRCm39) F525L possibly damaging Het
Glb1 T C 9: 114,279,716 (GRCm39) Y375H probably damaging Het
Gpatch1 A G 7: 34,998,701 (GRCm39) V343A probably benign Het
Gpr139 A G 7: 118,744,192 (GRCm39) V131A probably benign Het
Hamp T C 7: 30,642,137 (GRCm39) T34A possibly damaging Het
Homer2 T G 7: 81,274,043 (GRCm39) D51A possibly damaging Het
Hspa1l C T 17: 35,196,366 (GRCm39) A135V probably damaging Het
Igsf10 A G 3: 59,243,998 (GRCm39) M112T possibly damaging Het
Ikbkb A T 8: 23,172,761 (GRCm39) L153Q probably damaging Het
Kif19a A T 11: 114,671,594 (GRCm39) I158F probably damaging Het
L1cam A T X: 72,904,747 (GRCm39) F536Y probably damaging Het
Lamb3 T C 1: 193,010,212 (GRCm39) V275A probably benign Het
Lhx1 A T 11: 84,410,647 (GRCm39) S226T probably benign Het
Llcfc1 G A 6: 41,662,155 (GRCm39) G53D possibly damaging Het
Loxl4 A G 19: 42,592,631 (GRCm39) probably null Het
Magee1 A T X: 104,166,564 (GRCm39) D783V probably damaging Het
Mak T C 13: 41,195,513 (GRCm39) K400R probably benign Het
Mgat4c T C 10: 102,224,790 (GRCm39) F335L probably benign Het
Mgat4f T A 1: 134,318,251 (GRCm39) M341K probably damaging Het
Mospd2 A G X: 163,739,473 (GRCm39) probably null Het
Mtor T C 4: 148,540,469 (GRCm39) F245L possibly damaging Het
Mycbp2 G A 14: 103,393,358 (GRCm39) H3068Y probably damaging Het
Myo5a T A 9: 75,087,429 (GRCm39) L1095H probably damaging Het
Nlrp1a T A 11: 71,013,733 (GRCm39) K506* probably null Het
Or5d18 C A 2: 87,864,943 (GRCm39) C180F probably damaging Het
Parvb A G 15: 84,116,369 (GRCm39) K33E possibly damaging Het
Phkb A G 8: 86,744,115 (GRCm39) D588G probably damaging Het
Pkd1l2 A T 8: 117,783,064 (GRCm39) I752N probably damaging Het
Pkhd1 C A 1: 20,484,444 (GRCm39) probably null Het
Plod3 C T 5: 137,016,627 (GRCm39) R30* probably null Het
Ppfia4 T C 1: 134,240,372 (GRCm39) I591V probably benign Het
Prickle2 A G 6: 92,402,652 (GRCm39) L112P probably damaging Het
Ptgs2 G T 1: 149,981,465 (GRCm39) A583S probably benign Het
Pycr2 T C 1: 180,734,413 (GRCm39) V231A probably damaging Het
Ralgapa2 T C 2: 146,273,807 (GRCm39) D540G probably benign Het
Rasal1 T A 5: 120,800,096 (GRCm39) I150N probably damaging Het
Rimkla T A 4: 119,331,779 (GRCm39) M140L possibly damaging Het
Sacs T C 14: 61,410,827 (GRCm39) L34P probably damaging Het
Sema3d A G 5: 12,534,926 (GRCm39) Y106C probably damaging Het
Serpinb8 T A 1: 107,533,657 (GRCm39) D237E probably benign Het
Slc19a2 T C 1: 164,089,657 (GRCm39) W158R probably damaging Het
Sorbs1 A T 19: 40,365,268 (GRCm39) F172I possibly damaging Het
Spaca7 A T 8: 12,636,447 (GRCm39) D91V probably damaging Het
Tead3 A G 17: 28,552,638 (GRCm39) F187L probably damaging Het
Tectb C G 19: 55,169,431 (GRCm39) probably benign Het
Tmem131 C A 1: 36,851,690 (GRCm39) V938L probably benign Het
Tmem132c T A 5: 127,540,026 (GRCm39) W351R probably damaging Het
Tmem178b A T 6: 40,184,435 (GRCm39) Q111L probably damaging Het
Trap1 T C 16: 3,878,624 (GRCm39) D236G probably damaging Het
Trim45 T A 3: 100,839,360 (GRCm39) L754* probably null Het
Tubgcp5 A G 7: 55,449,259 (GRCm39) E152G probably damaging Het
Uaca A T 9: 60,776,961 (GRCm39) L447F probably damaging Het
Vps51 A G 19: 6,118,164 (GRCm39) V777A probably benign Het
Wdr11 A G 7: 129,230,807 (GRCm39) probably null Het
Zfp462 T A 4: 55,013,670 (GRCm39) S1879T probably benign Het
Zfr2 T G 10: 81,077,950 (GRCm39) V259G 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
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
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 PCR Primer
(F):5'- TGCAGTTGGAAATGGATCCTGG -3'
(R):5'- TGATCATCATGGCTGCGTAG -3'

Sequencing Primer
(F):5'- AAATGGATCCTGGCCCTTG -3'
(R):5'- TAGCTTTGCCTCCTCCCCGAGG -3'
Posted On 2014-10-01