Incidental Mutation 'R0789:Cacnb4'
ID 76382
Institutional Source Beutler Lab
Gene Symbol Cacnb4
Ensembl Gene ENSMUSG00000017412
Gene Name calcium channel, voltage-dependent, beta 4 subunit
Synonyms Cchb4, 3110038O15Rik
MMRRC Submission 038969-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.227) question?
Stock # R0789 (G1)
Quality Score 225
Status Validated
Chromosome 2
Chromosomal Location 52318332-52566816 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 52341895 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Isoleucine at position 335 (V335I)
Ref Sequence ENSEMBL: ENSMUSP00000136811 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000078324] [ENSMUST00000102760] [ENSMUST00000102761] [ENSMUST00000178799]
AlphaFold Q8R0S4
Predicted Effect possibly damaging
Transcript: ENSMUST00000078324
AA Change: V335I

PolyPhen 2 Score 0.904 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000077438
Gene: ENSMUSG00000017412
AA Change: V335I

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: V302I

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000099821
Gene: ENSMUSG00000017412
AA Change: V302I

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 possibly damaging
Transcript: ENSMUST00000102761
AA Change: V289I

PolyPhen 2 Score 0.910 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000099822
Gene: ENSMUSG00000017412
AA Change: V289I

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: V335I

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000136811
Gene: ENSMUSG00000017412
AA Change: V335I

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 0.1169 question?
Coding Region Coverage
  • 1x: 99.6%
  • 3x: 98.9%
  • 10x: 96.7%
  • 20x: 91.7%
Validation Efficiency 98% (45/46)
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: 42 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Asb10 T C 5: 24,744,862 (GRCm39) T111A probably damaging Het
BC024139 T C 15: 76,005,283 (GRCm39) I526M possibly damaging Het
Ccdc33 C T 9: 58,024,497 (GRCm39) probably benign Het
Cfap58 T G 19: 47,943,748 (GRCm39) I316S probably benign Het
Chpf A T 1: 75,452,407 (GRCm39) L349Q probably damaging Het
Cntnap1 A G 11: 101,072,210 (GRCm39) probably benign Het
Col4a4 G A 1: 82,502,717 (GRCm39) P356S unknown Het
Dnah1 T C 14: 31,026,548 (GRCm39) I777V probably benign Het
Dnah11 A G 12: 117,874,967 (GRCm39) V3966A probably damaging Het
Fbxo38 G A 18: 62,648,570 (GRCm39) S656F possibly damaging Het
Fgf10 T A 13: 118,925,741 (GRCm39) N173K probably benign Het
Flt1 C T 5: 147,576,293 (GRCm39) E572K probably damaging Het
Gabra6 C A 11: 42,205,844 (GRCm39) R336S probably benign Het
Glt8d2 T C 10: 82,500,519 (GRCm39) N77S probably damaging Het
Grem1 C A 2: 113,580,056 (GRCm39) K148N probably benign Het
Hat1 G A 2: 71,252,088 (GRCm39) probably benign Het
Hydin A T 8: 111,293,603 (GRCm39) I3517F possibly damaging Het
Immt A G 6: 71,838,051 (GRCm39) K253R probably damaging Het
Klk1b8 A C 7: 43,595,151 (GRCm39) probably benign Het
Krt39 T C 11: 99,411,888 (GRCm39) Y66C probably benign Het
Mrgprb1 T C 7: 48,105,932 (GRCm39) probably benign Het
Nrp2 A G 1: 62,784,609 (GRCm39) M253V probably benign Het
Omt2b G T 9: 78,235,447 (GRCm39) probably benign Het
Or5as1 T C 2: 86,980,171 (GRCm39) Y278C probably damaging Het
Or7g32 C A 9: 19,408,458 (GRCm39) P138H possibly damaging Het
Pcdh20 T C 14: 88,706,226 (GRCm39) Y358C probably damaging Het
Pik3r4 T C 9: 105,562,366 (GRCm39) M1215T probably benign Het
Polr1has T C 17: 37,275,852 (GRCm39) Y145H probably damaging Het
Rasal2 T C 1: 156,984,891 (GRCm39) E927G probably damaging Het
Ryr3 A G 2: 112,611,318 (GRCm39) probably null Het
Scaf8 T C 17: 3,247,112 (GRCm39) C812R possibly damaging Het
Scart2 G T 7: 139,828,133 (GRCm39) G114W probably damaging Het
Smpd4 T C 16: 17,443,690 (GRCm39) V78A probably benign Het
Sp2 A T 11: 96,852,202 (GRCm39) S241T probably benign Het
Tsga10 A T 1: 37,840,868 (GRCm39) I446N possibly damaging Het
Ubr4 G A 4: 139,137,582 (GRCm39) probably null Het
Usp44 T C 10: 93,683,082 (GRCm39) probably benign Het
Usp54 A T 14: 20,612,225 (GRCm39) S864T probably benign Het
Vmn2r56 A G 7: 12,466,762 (GRCm39) Y91H probably damaging Het
Vmn2r96 T C 17: 18,802,738 (GRCm39) V216A possibly damaging Het
Wdr17 A T 8: 55,112,607 (GRCm39) probably benign Het
Zmym6 A G 4: 127,016,615 (GRCm39) T799A 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
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
R4455:Cacnb4 UTSW 2 52,355,665 (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'- ACAGCAGGCAGGAACTTCTCAAAG -3'
(R):5'- GGCCGTGTGTATAAAGCACACCAAG -3'

Sequencing Primer
(F):5'- GCAGGAACTTCTCAAAGAGATG -3'
(R):5'- ccagccagacctacataataagac -3'
Posted On 2013-10-16