Incidental Mutation 'R4455:Cacnb4'
ID 329119
Institutional Source Beutler Lab
Gene Symbol Cacnb4
Ensembl Gene ENSMUSG00000017412
Gene Name calcium channel, voltage-dependent, beta 4 subunit
Synonyms Cchb4, 3110038O15Rik
MMRRC Submission 041715-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.227) question?
Stock # R4455 (G1)
Quality Score 225
Status Validated
Chromosome 2
Chromosomal Location 52318332-52566816 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 52355665 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Alanine at position 214 (V214A)
Ref Sequence ENSEMBL: ENSMUSP00000077438 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000078324] [ENSMUST00000102760] [ENSMUST00000102761] [ENSMUST00000178799]
AlphaFold Q8R0S4
PDB Structure BETA4 SUBUNIT OF CA2+ CHANNEL [X-RAY DIFFRACTION]
Predicted Effect probably damaging
Transcript: ENSMUST00000078324
AA Change: V214A

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000077438
Gene: ENSMUSG00000017412
AA Change: V214A

DomainStartEndE-ValueType
Pfam:VGCC_beta4Aa_N 49 90 5.4e-27 PFAM
SH3 94 159 4.96e-2 SMART
low complexity region 172 189 N/A INTRINSIC
low complexity region 193 206 N/A INTRINSIC
GuKc 217 398 3.46e-37 SMART
low complexity region 465 481 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000102760
AA Change: V181A

PolyPhen 2 Score 0.994 (Sensitivity: 0.69; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000099821
Gene: ENSMUSG00000017412
AA Change: V181A

DomainStartEndE-ValueType
Pfam:VGCC_beta4Aa_N 16 57 9.4e-28 PFAM
SH3 61 126 4.96e-2 SMART
low complexity region 139 156 N/A INTRINSIC
low complexity region 160 173 N/A INTRINSIC
GuKc 184 365 3.46e-37 SMART
low complexity region 432 448 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000102761
AA Change: V168A

PolyPhen 2 Score 0.997 (Sensitivity: 0.41; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000099822
Gene: ENSMUSG00000017412
AA Change: V168A

DomainStartEndE-ValueType
Pfam:VGCC_beta4Aa_N 3 44 4.8e-27 PFAM
SH3 48 113 4.96e-2 SMART
low complexity region 126 143 N/A INTRINSIC
low complexity region 147 160 N/A INTRINSIC
GuKc 171 352 3.46e-37 SMART
low complexity region 419 435 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000178799
AA Change: V214A

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000136811
Gene: ENSMUSG00000017412
AA Change: V214A

DomainStartEndE-ValueType
Pfam:VGCC_beta4Aa_N 49 90 1.3e-24 PFAM
SH3 94 159 4.96e-2 SMART
low complexity region 172 189 N/A INTRINSIC
GuKc 217 398 3.46e-37 SMART
low complexity region 465 481 N/A INTRINSIC
Meta Mutation Damage Score 0.6603 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 97.1%
  • 20x: 95.0%
Validation Efficiency 100% (61/61)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a member of the beta subunit family of voltage-dependent calcium channel complex proteins. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization and consist of a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. Various versions of each of these subunits exist, either expressed from similar genes or the result of alternative splicing. The protein encoded by this locus plays an important role in calcium channel function by modulating G protein inhibition, increasing peak calcium current, controlling the alpha-1 subunit membrane targeting and shifting the voltage dependence of activation and inactivation. Certain mutations in this gene have been associated with idiopathic generalized epilepsy (IGE), juvenile myoclonic epilepsy (JME), and episodic ataxia, type 5. [provided by RefSeq, Aug 2016]
PHENOTYPE: Homozygous mutants have lethargic behavior, unstable gait and seizures, with peripheral motor nerves showing reduced conduction velocity and prolonged distal latency. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 47 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700102P08Rik A G 9: 108,274,395 (GRCm39) H166R possibly damaging Het
Aktip T C 8: 91,851,479 (GRCm39) E248G probably benign Het
Ankk1 A G 9: 49,329,366 (GRCm39) V336A probably benign Het
Aoc1 T A 6: 48,882,401 (GRCm39) D92E probably damaging Het
Aoc1l3 A T 6: 48,964,394 (GRCm39) N134I possibly damaging Het
Arfgef2 T C 2: 166,736,635 (GRCm39) I1769T probably benign Het
Arfgef3 A T 10: 18,483,423 (GRCm39) S1434T probably benign Het
Baz1a C A 12: 54,958,153 (GRCm39) V1033L probably benign Het
Bbs12 T C 3: 37,374,461 (GRCm39) V418A probably damaging Het
Calhm6 A T 10: 34,002,531 (GRCm39) I184N probably damaging Het
Camk2d T C 3: 126,574,052 (GRCm39) V153A probably damaging Het
Ccdc18 C T 5: 108,309,395 (GRCm39) S330L possibly damaging Het
Cdh11 T C 8: 103,374,455 (GRCm39) D500G probably benign Het
Cdkn2d C G 9: 21,202,185 (GRCm39) V21L probably benign Het
Clca4a G A 3: 144,663,020 (GRCm39) P610S probably damaging Het
Dctn1 T C 6: 83,172,031 (GRCm39) L807P probably damaging Het
Dop1b T C 16: 93,563,103 (GRCm39) L869P probably damaging Het
Egr2 GAA GA 10: 67,375,733 (GRCm39) probably null Het
Eya1 C T 1: 14,253,420 (GRCm39) V519M probably damaging Het
Fam227b T A 2: 125,988,188 (GRCm39) probably benign Het
Fsip2 G T 2: 82,821,120 (GRCm39) A5618S possibly damaging Het
Grb10 T G 11: 11,917,665 (GRCm39) Q72P possibly damaging Het
H3f3a G T 1: 180,630,668 (GRCm39) R129S probably benign Het
Hfm1 T C 5: 107,034,374 (GRCm39) probably null Het
Kansl1 T C 11: 104,315,184 (GRCm39) T285A possibly damaging Het
Krtap16-1 A T 11: 99,876,559 (GRCm39) C282S probably benign Het
Magi1 A G 6: 93,762,438 (GRCm39) V89A probably damaging Het
Mllt1 A G 17: 57,226,965 (GRCm39) Y71H probably damaging Het
Ms4a14 T A 19: 11,280,990 (GRCm39) T523S possibly damaging Het
Mslnl G A 17: 25,961,908 (GRCm39) V128M probably damaging Het
Muc5b T C 7: 141,412,555 (GRCm39) S1834P unknown Het
Necap1 C T 6: 122,864,328 (GRCm39) S270F possibly damaging Het
Piwil2 T C 14: 70,628,014 (GRCm39) M752V probably benign Het
Prune1 G A 3: 95,189,207 (GRCm39) probably null Het
Ptpro A G 6: 137,370,657 (GRCm39) E586G probably damaging Het
Rela T A 19: 5,697,290 (GRCm39) I499K probably damaging Het
Rpl31-ps17 C T 12: 54,748,397 (GRCm39) noncoding transcript Het
Scara5 T A 14: 66,000,196 (GRCm39) D455E probably benign Het
Slc2a4 G A 11: 69,834,148 (GRCm39) probably benign Het
Sntb2 G A 8: 107,718,239 (GRCm39) probably null Het
Sspo C T 6: 48,442,450 (GRCm39) R1982C probably damaging Het
Tsen34 G A 7: 3,698,097 (GRCm39) probably null Het
Ttc28 AC A 5: 111,371,924 (GRCm39) probably null Het
Ttn T C 2: 76,777,257 (GRCm39) M1382V probably benign Het
Utp18 G A 11: 93,776,273 (GRCm39) R71C probably benign Het
Xrn1 T A 9: 95,855,698 (GRCm39) probably benign Het
Yeats2 A G 16: 19,980,743 (GRCm39) K187R possibly damaging Het
Other mutations in Cacnb4
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00961:Cacnb4 APN 2 52,367,724 (GRCm39) missense possibly damaging 0.46
IGL01328:Cacnb4 APN 2 52,354,637 (GRCm39) missense probably damaging 1.00
IGL01801:Cacnb4 APN 2 52,324,723 (GRCm39) missense probably benign 0.15
IGL01992:Cacnb4 APN 2 52,355,682 (GRCm39) missense probably damaging 1.00
IGL03030:Cacnb4 APN 2 52,364,894 (GRCm39) missense probably damaging 1.00
R0789:Cacnb4 UTSW 2 52,341,895 (GRCm39) missense probably damaging 1.00
R1069:Cacnb4 UTSW 2 52,345,623 (GRCm39) missense probably damaging 1.00
R1646:Cacnb4 UTSW 2 52,364,912 (GRCm39) missense possibly damaging 0.87
R2050:Cacnb4 UTSW 2 52,359,598 (GRCm39) missense probably damaging 0.99
R3939:Cacnb4 UTSW 2 52,359,501 (GRCm39) missense probably damaging 1.00
R3941:Cacnb4 UTSW 2 52,359,501 (GRCm39) missense probably damaging 1.00
R4497:Cacnb4 UTSW 2 52,367,783 (GRCm39) missense probably damaging 1.00
R4707:Cacnb4 UTSW 2 52,364,927 (GRCm39) missense probably benign 0.45
R4824:Cacnb4 UTSW 2 52,565,822 (GRCm39) missense probably benign 0.00
R4957:Cacnb4 UTSW 2 52,448,303 (GRCm39) missense probably damaging 0.99
R5913:Cacnb4 UTSW 2 52,324,796 (GRCm39) intron probably benign
R6372:Cacnb4 UTSW 2 52,324,679 (GRCm39) missense probably benign 0.00
R6945:Cacnb4 UTSW 2 52,364,966 (GRCm39) missense probably damaging 1.00
R7557:Cacnb4 UTSW 2 52,359,579 (GRCm39) missense probably damaging 1.00
R7821:Cacnb4 UTSW 2 52,324,520 (GRCm39) missense possibly damaging 0.91
R8015:Cacnb4 UTSW 2 52,354,655 (GRCm39) missense probably damaging 1.00
R8043:Cacnb4 UTSW 2 52,355,663 (GRCm39) missense probably damaging 1.00
R8181:Cacnb4 UTSW 2 52,364,997 (GRCm39) missense probably benign 0.00
R8376:Cacnb4 UTSW 2 52,354,665 (GRCm39) nonsense probably null
R8466:Cacnb4 UTSW 2 52,354,679 (GRCm39) missense probably damaging 1.00
R8765:Cacnb4 UTSW 2 52,327,001 (GRCm39) missense probably damaging 0.99
R9018:Cacnb4 UTSW 2 52,324,706 (GRCm39) missense probably benign 0.26
R9574:Cacnb4 UTSW 2 52,327,016 (GRCm39) missense probably damaging 1.00
R9624:Cacnb4 UTSW 2 52,364,942 (GRCm39) missense probably benign 0.09
R9778:Cacnb4 UTSW 2 52,359,615 (GRCm39) missense probably damaging 0.96
Z1176:Cacnb4 UTSW 2 52,565,824 (GRCm39) critical splice acceptor site probably null
Predicted Primers PCR Primer
(F):5'- TGGCAATGTTCAGTTAATCTCCAG -3'
(R):5'- CGTTTCCGTGACCCACATAG -3'

Sequencing Primer
(F):5'- CCAGAATTTAATCCTGTTTTTACCGG -3'
(R):5'- TCCGTGACCCACATAGCTATAATGTG -3'
Posted On 2015-07-21