Incidental Mutation 'R4949:Kcnb1'
ID 383651
Institutional Source Beutler Lab
Gene Symbol Kcnb1
Ensembl Gene ENSMUSG00000050556
Gene Name potassium voltage gated channel, Shab-related subfamily, member 1
Synonyms Shab, Kcr1-1, Kv2.1
MMRRC Submission 042546-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R4949 (G1)
Quality Score 192
Status Not validated
Chromosome 2
Chromosomal Location 166937889-167032075 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to T at 166947521 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Asparagine to Lysine at position 442 (N442K)
Ref Sequence ENSEMBL: ENSMUSP00000147093 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000059826] [ENSMUST00000207917]
AlphaFold Q03717
Predicted Effect probably damaging
Transcript: ENSMUST00000059826
AA Change: N442K

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000057981
Gene: ENSMUSG00000050556
AA Change: N442K

DomainStartEndE-ValueType
BTB 31 140 1.3e-14 SMART
low complexity region 150 162 N/A INTRINSIC
Pfam:Ion_trans 188 424 2.4e-50 PFAM
Pfam:Ion_trans_2 332 418 1.2e-13 PFAM
Pfam:Kv2channel 467 618 5.4e-48 PFAM
low complexity region 698 706 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000144351
Predicted Effect noncoding transcript
Transcript: ENSMUST00000148226
Predicted Effect probably damaging
Transcript: ENSMUST00000207917
AA Change: N442K

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.3%
  • 10x: 96.1%
  • 20x: 91.3%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Voltage-gated potassium (Kv) channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. Four sequence-related potassium channel genes - shaker, shaw, shab, and shal - have been identified in Drosophila, and each has been shown to have human homolog(s). This gene encodes a member of the potassium channel, voltage-gated, shab-related subfamily. This member is a delayed rectifier potassium channel and its activity is modulated by some other family members. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a null allele show reduced fasting glucose levels, hyperinsulinemia, improved glucose tolerance, altered glucose-induced electrical activity of pancreatic beta cells, and enhanced insulin secretion. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 35 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acox3 T C 5: 35,769,450 (GRCm39) V692A probably benign Het
Bcl2l13 G T 6: 120,864,191 (GRCm39) G382W probably damaging Het
Cdhr5 T A 7: 140,852,557 (GRCm39) N353I probably damaging Het
Chil4 A G 3: 106,113,408 (GRCm39) S170P possibly damaging Het
Clp1 A C 2: 84,554,086 (GRCm39) M361R possibly damaging Het
Cylc2 A G 4: 51,229,804 (GRCm39) K382R unknown Het
Dsg2 T A 18: 20,723,241 (GRCm39) D422E probably damaging Het
Dync1h1 C A 12: 110,624,560 (GRCm39) T3700N probably damaging Het
Gm14295 A C 2: 176,501,469 (GRCm39) T320P probably damaging Het
Ido2 T G 8: 25,023,970 (GRCm39) probably null Het
Ift140 T A 17: 25,313,639 (GRCm39) S1357T probably benign Het
Insr T G 8: 3,235,059 (GRCm39) E145A probably benign Het
Itpripl1 A G 2: 126,983,327 (GRCm39) M265T probably benign Het
Kifc5b C A 17: 27,144,488 (GRCm39) R536S probably damaging Het
Klf6 A T 13: 5,914,947 (GRCm39) S129C probably benign Het
Lpin2 C G 17: 71,538,334 (GRCm39) P327A probably damaging Het
Lsm1 T C 8: 26,292,065 (GRCm39) V114A probably benign Het
Map7d1 C T 4: 126,128,846 (GRCm39) W218* probably null Het
N4bp2 T A 5: 65,979,142 (GRCm39) probably null Het
Nt5el T A 13: 105,246,214 (GRCm39) S258R probably damaging Het
Rheb A T 5: 25,008,729 (GRCm39) I163K possibly damaging Het
Rph3a T C 5: 121,101,897 (GRCm39) D113G probably damaging Het
Scn8a A G 15: 100,927,663 (GRCm39) N1381D probably damaging Het
Sdsl T A 5: 120,597,870 (GRCm39) N208Y possibly damaging Het
Serpinb9e A G 13: 33,435,591 (GRCm39) N8S possibly damaging Het
Sox18 G A 2: 181,313,017 (GRCm39) Q100* probably null Het
Taar8b C T 10: 23,967,825 (GRCm39) C123Y probably damaging Het
Tas2r124 A G 6: 132,731,858 (GRCm39) I56V possibly damaging Het
Tes C A 6: 17,100,359 (GRCm39) H331N probably benign Het
Tmbim1 T G 1: 74,334,524 (GRCm39) D12A probably damaging Het
Tmprss4 T C 9: 45,086,841 (GRCm39) I307V possibly damaging Het
Ttll1 A T 15: 83,386,374 (GRCm39) M77K probably null Het
Ttpal G A 2: 163,455,671 (GRCm39) R220Q probably damaging Het
Vmn1r230 T A 17: 21,067,625 (GRCm39) H271Q probably benign Het
Vmn2r32 A G 7: 7,467,083 (GRCm39) I815T probably benign Het
Other mutations in Kcnb1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01593:Kcnb1 APN 2 166,948,127 (GRCm39) missense probably damaging 1.00
IGL02945:Kcnb1 APN 2 167,030,308 (GRCm39) missense probably benign 0.03
R0139:Kcnb1 UTSW 2 166,947,459 (GRCm39) missense possibly damaging 0.94
R0144:Kcnb1 UTSW 2 166,946,467 (GRCm39) missense probably damaging 1.00
R0238:Kcnb1 UTSW 2 166,946,889 (GRCm39) missense probably benign 0.04
R0238:Kcnb1 UTSW 2 166,946,889 (GRCm39) missense probably benign 0.04
R0848:Kcnb1 UTSW 2 166,948,187 (GRCm39) missense probably damaging 1.00
R2869:Kcnb1 UTSW 2 166,947,855 (GRCm39) missense probably damaging 1.00
R2869:Kcnb1 UTSW 2 166,947,855 (GRCm39) missense probably damaging 1.00
R3964:Kcnb1 UTSW 2 166,946,412 (GRCm39) missense probably damaging 1.00
R3966:Kcnb1 UTSW 2 166,946,412 (GRCm39) missense probably damaging 1.00
R4254:Kcnb1 UTSW 2 166,947,651 (GRCm39) missense probably damaging 1.00
R4418:Kcnb1 UTSW 2 166,947,595 (GRCm39) nonsense probably null
R4625:Kcnb1 UTSW 2 167,030,153 (GRCm39) missense probably damaging 1.00
R5144:Kcnb1 UTSW 2 166,947,864 (GRCm39) missense probably damaging 1.00
R5249:Kcnb1 UTSW 2 166,947,103 (GRCm39) missense possibly damaging 0.95
R5849:Kcnb1 UTSW 2 166,947,946 (GRCm39) missense probably damaging 1.00
R5869:Kcnb1 UTSW 2 167,029,991 (GRCm39) missense probably benign 0.01
R6108:Kcnb1 UTSW 2 166,947,060 (GRCm39) missense probably damaging 1.00
R6636:Kcnb1 UTSW 2 166,947,774 (GRCm39) missense probably damaging 0.99
R6637:Kcnb1 UTSW 2 166,947,774 (GRCm39) missense probably damaging 0.99
R6880:Kcnb1 UTSW 2 166,947,727 (GRCm39) missense probably damaging 1.00
R7391:Kcnb1 UTSW 2 166,947,370 (GRCm39) missense probably damaging 1.00
R7401:Kcnb1 UTSW 2 167,030,204 (GRCm39) missense probably damaging 0.99
R7651:Kcnb1 UTSW 2 167,030,281 (GRCm39) missense probably damaging 1.00
R7744:Kcnb1 UTSW 2 167,030,251 (GRCm39) missense probably damaging 1.00
R7825:Kcnb1 UTSW 2 166,947,892 (GRCm39) missense probably damaging 1.00
R7848:Kcnb1 UTSW 2 166,948,188 (GRCm39) missense probably damaging 1.00
R7934:Kcnb1 UTSW 2 166,946,536 (GRCm39) missense probably benign 0.03
R8215:Kcnb1 UTSW 2 166,946,361 (GRCm39) missense probably benign 0.43
R8241:Kcnb1 UTSW 2 166,948,117 (GRCm39) missense probably damaging 1.00
R8388:Kcnb1 UTSW 2 166,947,217 (GRCm39) missense probably benign
R8553:Kcnb1 UTSW 2 166,946,531 (GRCm39) missense possibly damaging 0.67
R9353:Kcnb1 UTSW 2 166,947,007 (GRCm39) missense probably benign
R9622:Kcnb1 UTSW 2 167,030,161 (GRCm39) missense probably damaging 1.00
Z1088:Kcnb1 UTSW 2 167,029,981 (GRCm39) missense probably benign 0.38
Z1176:Kcnb1 UTSW 2 167,030,322 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- TGGTTTCAAAGGACTTGCTCG -3'
(R):5'- ACCATGACGACCGTTGGTTAC -3'

Sequencing Primer
(F):5'- TCAAAGGACTTGCTCGAGCTG -3'
(R):5'- TGGTTACGGAGACATCTACCCTAAG -3'
Posted On 2016-04-27