Incidental Mutation 'R4371:Kcnmb2'
ID 371134
Institutional Source Beutler Lab
Gene Symbol Kcnmb2
Ensembl Gene ENSMUSG00000037610
Gene Name potassium large conductance calcium-activated channel, subfamily M, beta member 2
Synonyms 3110031N04Rik, 2700049B16Rik
MMRRC Submission 041117-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.064) question?
Stock # R4371 (G1)
Quality Score 225
Status Validated
Chromosome 3
Chromosomal Location 31956656-32254329 bp(+) (GRCm39)
Type of Mutation splice site
DNA Base Change (assembly) A to G at 32210251 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000141858 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000119310] [ENSMUST00000119970] [ENSMUST00000178668] [ENSMUST00000191869] [ENSMUST00000192429] [ENSMUST00000194796] [ENSMUST00000194796] [ENSMUST00000194796]
AlphaFold Q9CZM9
Predicted Effect probably benign
Transcript: ENSMUST00000119310
SMART Domains Protein: ENSMUSP00000112531
Gene: ENSMUSG00000037610

DomainStartEndE-ValueType
Pfam:KcnmB2_inactiv 1 32 4.5e-22 PFAM
Pfam:CaKB 38 229 3e-87 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000119970
SMART Domains Protein: ENSMUSP00000113234
Gene: ENSMUSG00000037610

DomainStartEndE-ValueType
Pfam:KcnmB2_inactiv 1 32 3.7e-26 PFAM
Pfam:CaKB 33 230 9.6e-96 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000178668
SMART Domains Protein: ENSMUSP00000136596
Gene: ENSMUSG00000037610

DomainStartEndE-ValueType
Pfam:KcnmB2_inactiv 1 32 3.7e-26 PFAM
Pfam:CaKB 33 230 9.6e-96 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000191869
SMART Domains Protein: ENSMUSP00000141955
Gene: ENSMUSG00000037610

DomainStartEndE-ValueType
Pfam:KcnmB2_inactiv 1 32 1.9e-22 PFAM
Pfam:CaKB 33 162 9.3e-60 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000192429
SMART Domains Protein: ENSMUSP00000141656
Gene: ENSMUSG00000037610

DomainStartEndE-ValueType
Pfam:KcnmB2_inactiv 1 32 3.7e-26 PFAM
Pfam:CaKB 33 230 9.6e-96 PFAM
Predicted Effect probably null
Transcript: ENSMUST00000194796
Predicted Effect probably null
Transcript: ENSMUST00000194796
Predicted Effect probably null
Transcript: ENSMUST00000194796
Meta Mutation Damage Score 0.9755 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.1%
  • 20x: 94.8%
Validation Efficiency 100% (41/41)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] MaxiK channels are large conductance, voltage and calcium-sensitive potassium channels which are fundamental to the control of smooth muscle tone and neuronal excitability. MaxiK channels can be formed by 2 subunits: the pore-forming alpha subunit and the modulatory beta subunit. The protein encoded by this gene is an auxiliary beta subunit which decreases the activation time of MaxiK alpha subunit currents. Alternative splicing results in multiple transcript variants of this gene. Additional variants are discussed in the literature, but their full length nature has not been described. [provided by RefSeq, Jul 2013]
PHENOTYPE: Homozygous inactivation of this gene abolishes inactivation of BK currents in mouse adrenal chromaffin cells and results in slow-wave burst activity. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 35 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Alg11 C A 8: 22,558,095 (GRCm39) A469E probably benign Het
Alox12b G A 11: 69,060,442 (GRCm39) R666H possibly damaging Het
Atp9a T C 2: 168,491,535 (GRCm39) T677A probably damaging Het
B4galt3 C A 1: 171,101,613 (GRCm39) H196N probably damaging Het
Bckdk C T 7: 127,505,591 (GRCm39) A238V probably benign Het
Brpf3 C T 17: 29,055,594 (GRCm39) A1181V probably damaging Het
C9 A G 15: 6,520,965 (GRCm39) D470G probably damaging Het
Camsap2 A G 1: 136,215,701 (GRCm39) F337L probably damaging Het
Cep152 G A 2: 125,454,967 (GRCm39) R278W probably damaging Het
Cfb T C 17: 35,079,290 (GRCm39) K287R probably damaging Het
Chfr G A 5: 110,284,034 (GRCm39) R36H probably damaging Het
Cyp4f14 T C 17: 33,128,232 (GRCm39) N261S probably benign Het
Drp2 A T X: 133,335,884 (GRCm39) probably benign Het
Dzip3 A G 16: 48,763,818 (GRCm39) probably null Het
Emb A T 13: 117,405,466 (GRCm39) D296V probably damaging Het
Epha1 T C 6: 42,342,391 (GRCm39) Y319C probably damaging Het
Flcn C T 11: 59,694,610 (GRCm39) V121I possibly damaging Het
Glrp1 GTGCTGCTGCTGCTGCTGCTGCTGCTG GTGCTGCTGCTGCTGCTGCTGCTGCTGCTG 1: 88,430,997 (GRCm39) probably benign Het
Gm6177 A T 1: 160,720,741 (GRCm39) noncoding transcript Het
Hepacam2 A T 6: 3,486,988 (GRCm39) V123E probably damaging Het
Iqsec1 A G 6: 90,671,588 (GRCm39) S194P probably damaging Het
Kat6a T C 8: 23,401,945 (GRCm39) I438T possibly damaging Het
Nbeal1 A T 1: 60,329,105 (GRCm39) K2174N possibly damaging Het
Ncapg G A 5: 45,835,797 (GRCm39) M409I probably benign Het
Ocstamp A G 2: 165,239,233 (GRCm39) S318P possibly damaging Het
Or5p79 C T 7: 108,221,096 (GRCm39) L26F probably benign Het
Phactr2 A G 10: 13,129,564 (GRCm39) S235P probably damaging Het
Pom121l2 T C 13: 22,166,409 (GRCm39) S227P probably benign Het
Sdf2 C T 11: 78,141,863 (GRCm39) T66I probably damaging Het
Sptbn5 A G 2: 119,896,475 (GRCm39) C729R probably damaging Het
Sys1 T C 2: 164,303,315 (GRCm39) W10R probably damaging Het
Tfap4 A G 16: 4,369,863 (GRCm39) I4T probably damaging Het
Thrb C A 14: 18,030,275 (GRCm38) Q340K probably damaging Het
Tnc T C 4: 63,888,588 (GRCm39) Y1735C probably damaging Het
Ubr1 A T 2: 120,725,547 (GRCm39) probably null Het
Other mutations in Kcnmb2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01909:Kcnmb2 APN 3 32,252,512 (GRCm39) unclassified probably benign
IGL02153:Kcnmb2 APN 3 32,232,993 (GRCm39) missense probably damaging 1.00
IGL02211:Kcnmb2 APN 3 32,252,483 (GRCm39) missense probably damaging 1.00
IGL03019:Kcnmb2 APN 3 32,252,299 (GRCm39) missense probably damaging 1.00
IGL03095:Kcnmb2 APN 3 32,252,276 (GRCm39) makesense probably null
R0334:Kcnmb2 UTSW 3 32,252,508 (GRCm39) splice site probably null
R1781:Kcnmb2 UTSW 3 32,233,152 (GRCm39) critical splice donor site probably null
R2064:Kcnmb2 UTSW 3 32,252,437 (GRCm39) missense probably damaging 0.99
R3858:Kcnmb2 UTSW 3 32,252,450 (GRCm39) missense probably damaging 1.00
R4766:Kcnmb2 UTSW 3 32,236,016 (GRCm39) missense probably damaging 1.00
R5493:Kcnmb2 UTSW 3 32,252,291 (GRCm39) missense probably damaging 0.97
R6063:Kcnmb2 UTSW 3 32,233,141 (GRCm39) missense probably damaging 1.00
R6240:Kcnmb2 UTSW 3 32,236,045 (GRCm39) missense probably damaging 1.00
R6928:Kcnmb2 UTSW 3 32,253,190 (GRCm39) missense probably benign 0.05
R6939:Kcnmb2 UTSW 3 32,252,465 (GRCm39) missense probably damaging 1.00
R7683:Kcnmb2 UTSW 3 32,252,465 (GRCm39) missense probably damaging 1.00
R8808:Kcnmb2 UTSW 3 32,252,266 (GRCm39) missense probably benign
R9194:Kcnmb2 UTSW 3 32,236,174 (GRCm39) missense probably benign 0.12
R9457:Kcnmb2 UTSW 3 32,236,018 (GRCm39) missense probably benign 0.07
Predicted Primers PCR Primer
(F):5'- ATTTCTGCAGGAGAGGCCAG -3'
(R):5'- GCATGTGGTAAAGGCATTTTCAG -3'

Sequencing Primer
(F):5'- CAGGAGAGGCCAGGCTTTG -3'
(R):5'- CCCAAATGACTCAGGCTTGTG -3'
Posted On 2016-02-25