Incidental Mutation 'R2237:Cacna1a'
ID 240461
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 040237-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.924) question?
Stock # R2237 (G1)
Quality Score 225
Status Not validated
Chromosome 8
Chromosomal Location 85065268-85366875 bp(+) (GRCm39)
Type of Mutation critical splice donor site (2 bp from exon)
DNA Base Change (assembly) T to C at 85360394 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Gene Model predicted gene model for transcript(s): [ENSMUST00000121390] [ENSMUST00000122053]
AlphaFold P97445
Predicted Effect probably null
Transcript: ENSMUST00000121390
SMART Domains Protein: ENSMUSP00000112436
Gene: ENSMUSG00000034656

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 null
Transcript: ENSMUST00000122053
SMART Domains Protein: ENSMUSP00000114055
Gene: ENSMUSG00000034656

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 probably null
Transcript: ENSMUST00000215756
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.4%
  • 20x: 95.3%
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: 70 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adam18 T C 8: 25,136,303 (GRCm39) E406G probably benign Het
Alox8 A C 11: 69,076,597 (GRCm39) S572A probably benign Het
Aoah G A 13: 20,978,481 (GRCm39) probably benign Het
Arhgap36 G T X: 48,582,282 (GRCm39) V60L possibly damaging Het
Arhgef37 T A 18: 61,637,477 (GRCm39) Y395F probably damaging Het
Bard1 G A 1: 71,114,135 (GRCm39) P282L probably damaging Het
Brd7 T A 8: 89,073,541 (GRCm39) E283V probably benign Het
Btbd9 T C 17: 30,553,302 (GRCm39) I387V probably benign Het
Cacna1c T C 6: 118,629,704 (GRCm39) Q1205R possibly damaging Het
Camsap2 A T 1: 136,273,069 (GRCm39) L36Q probably damaging Het
Ccnj T C 19: 40,834,219 (GRCm39) F261L probably benign Het
Cd200r4 T A 16: 44,641,260 (GRCm39) M1K probably null Het
Cdca7l A G 12: 117,837,761 (GRCm39) E237G probably damaging Het
Cep128 T C 12: 91,314,341 (GRCm39) T146A probably benign Het
Clhc1 T G 11: 29,519,329 (GRCm39) S379A probably benign Het
Dbf4 T A 5: 8,458,542 (GRCm39) I158L possibly damaging Het
Deup1 A C 9: 15,486,597 (GRCm39) I455S probably damaging Het
Dlec1 T C 9: 118,967,259 (GRCm39) probably null Het
Eomes A G 9: 118,311,359 (GRCm39) D394G probably damaging Het
Epn1 A G 7: 5,100,601 (GRCm39) N518S probably damaging Het
Espl1 G A 15: 102,224,004 (GRCm39) R1185H probably damaging Het
Evc2 T C 5: 37,535,527 (GRCm39) S401P probably benign Het
Fbxw15 A G 9: 109,384,303 (GRCm39) S403P probably damaging Het
Hsd17b1 G A 11: 100,970,652 (GRCm39) V236M probably damaging Het
Htatsf1 G T X: 56,111,864 (GRCm39) D642Y unknown Het
Iqca1l A T 5: 24,753,292 (GRCm39) N453K probably benign Het
Itpripl2 T C 7: 118,089,294 (GRCm39) T422A probably benign Het
Izumo4 T C 10: 80,538,664 (GRCm39) S39P probably damaging Het
Kcnh5 T A 12: 75,054,493 (GRCm39) M484L probably benign Het
Kctd8 T A 5: 69,267,752 (GRCm39) I453F probably damaging Het
Kif5c A G 2: 49,584,020 (GRCm39) T152A probably benign Het
Kntc1 T C 5: 123,941,733 (GRCm39) V1809A possibly damaging Het
L3mbtl2 A T 15: 81,568,531 (GRCm39) T512S probably benign Het
Ltbp1 C A 17: 75,617,158 (GRCm39) D1032E probably benign Het
Mindy4 T C 6: 55,278,055 (GRCm39) F633S probably damaging Het
Muc5b T G 7: 141,415,826 (GRCm39) I2924S probably benign Het
Nfe2l2 G A 2: 75,506,898 (GRCm39) P401S probably benign Het
Nid1 T C 13: 13,675,070 (GRCm39) V930A probably benign Het
Nt5c1b C A 12: 10,425,558 (GRCm39) T309K probably damaging Het
Nt5m A G 11: 59,743,696 (GRCm39) K108R probably benign Het
Or10v5 T C 19: 11,805,814 (GRCm39) D192G probably damaging Het
Or13p3 A G 4: 118,567,192 (GRCm39) D196G probably damaging Het
Osbpl9 T A 4: 109,013,854 (GRCm39) Q80L probably damaging Het
Osm A G 11: 4,188,505 (GRCm39) N44S possibly damaging Het
Pclo C T 5: 14,763,952 (GRCm39) P4142S unknown Het
Pdlim2 T G 14: 70,408,698 (GRCm39) T173P probably benign Het
Pex1 T C 5: 3,668,915 (GRCm39) probably null Het
Phka2 A G X: 159,324,408 (GRCm39) E254G probably damaging Het
Pik3cb A G 9: 98,923,081 (GRCm39) Y984H probably damaging Het
Plscr2 T C 9: 92,172,877 (GRCm39) C179R probably damaging Het
Rbpms2 C A 9: 65,558,893 (GRCm39) Y183* probably null Het
Ryr2 T A 13: 11,677,146 (GRCm39) E3235V probably benign Het
Sesn3 T C 9: 14,219,761 (GRCm39) V50A probably benign Het
Siglecf T C 7: 43,004,409 (GRCm39) V246A probably benign Het
Sp2 C T 11: 96,846,762 (GRCm39) C527Y probably damaging Het
Spata31e2 A T 1: 26,724,241 (GRCm39) M313K possibly damaging Het
Spata4 A C 8: 55,055,664 (GRCm39) K185T probably benign Het
Spin2c A G X: 152,616,672 (GRCm39) I162V probably damaging Het
Stac G A 9: 111,519,190 (GRCm39) probably benign Het
Tas1r3 A T 4: 155,946,675 (GRCm39) M310K possibly damaging Het
Tenm3 G A 8: 48,795,372 (GRCm39) P585L probably damaging Het
Tnfsf11 A T 14: 78,537,421 (GRCm39) S81T possibly damaging Het
Topaz1 C T 9: 122,600,212 (GRCm39) T984I probably benign Het
Ttll2 G A 17: 7,619,522 (GRCm39) T135I probably benign Het
Ubr4 A G 4: 139,170,101 (GRCm39) S1584G probably damaging Het
Ugcg C T 4: 59,207,798 (GRCm39) P46S probably benign Het
Vmn2r80 G A 10: 79,004,104 (GRCm39) E106K probably damaging Het
Xpc T C 6: 91,475,090 (GRCm39) H643R probably damaging Het
Zan G A 5: 137,456,099 (GRCm39) Q1354* probably null Het
Zpld2 A C 4: 133,929,516 (GRCm39) M263R unknown 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
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'- GTGGTTCAGGCAGAAAGGGTTC -3'
(R):5'- GACTACCATGTGCCTCAAGGTG -3'

Sequencing Primer
(F):5'- GTTCTCCCATACAGAGGCTCCAG -3'
(R):5'- ATGTGCCTCAAGGTGCTCCATC -3'
Posted On 2014-10-15