Incidental Mutation 'IGL01889:Kcnj3'
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ID179207
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Kcnj3
Ensembl Gene ENSMUSG00000026824
Gene Namepotassium inwardly-rectifying channel, subfamily J, member 3
SynonymsGIRK1, Kcnf3, Kir3.1
Accession Numbers
Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #IGL01889
Quality Score
Status
Chromosome2
Chromosomal Location55435970-55598145 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 55437204 bp
ZygosityHeterozygous
Amino Acid Change Serine to Threonine at position 2 (S2T)
Ref Sequence ENSEMBL: ENSMUSP00000108252 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000067101] [ENSMUST00000112632] [ENSMUST00000112633]
Predicted Effect possibly damaging
Transcript: ENSMUST00000067101
AA Change: S2T

PolyPhen 2 Score 0.685 (Sensitivity: 0.86; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000063329
Gene: ENSMUSG00000026824
AA Change: S2T

DomainStartEndE-ValueType
low complexity region 18 37 N/A INTRINSIC
Pfam:IRK 47 385 3.6e-164 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000112632
AA Change: S2T

PolyPhen 2 Score 0.355 (Sensitivity: 0.90; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000108251
Gene: ENSMUSG00000026824
AA Change: S2T

DomainStartEndE-ValueType
low complexity region 18 37 N/A INTRINSIC
Pfam:IRK 47 235 4e-99 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000112633
AA Change: S2T

PolyPhen 2 Score 0.685 (Sensitivity: 0.86; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000108252
Gene: ENSMUSG00000026824
AA Change: S2T

DomainStartEndE-ValueType
low complexity region 18 37 N/A INTRINSIC
Pfam:IRK 47 369 1.1e-141 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000128307
Predicted Effect noncoding transcript
Transcript: ENSMUST00000180810
Coding Region Coverage
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Potassium channels are present in most mammalian cells, where they participate in a wide range of physiologic responses. The protein encoded by this gene is an integral membrane protein and inward-rectifier type potassium channel. The encoded protein, which has a greater tendency to allow potassium to flow into a cell rather than out of a cell, is controlled by G-proteins and plays an important role in regulating heartbeat. It associates with three other G-protein-activated potassium channels to form a heteromultimeric pore-forming complex that also couples to neurotransmitter receptors in the brain and whereby channel activation can inhibit action potential firing by hyperpolarizing the plasma membrane. These multimeric G-protein-gated inwardly-rectifying potassium (GIRK) channels may play a role in the pathophysiology of epilepsy, addiction, Down's syndrome, ataxia, and Parkinson's disease. Alternative splicing results in multiple transcript variants encoding distinct proteins. [provided by RefSeq, May 2012]
PHENOTYPE: Mice homozygous for a targeted null mutation display slightly increased resting heart rates, and blunted responses to both indirect vagal activation and direct adenosine A1 receptor activation (intended to activate the muscarinic-gated atrial potassium channel). [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 21 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
A730049H05Rik G A 6: 92,828,000 probably benign Het
Brap G A 5: 121,660,818 V18I probably benign Het
Csmd1 C T 8: 15,998,857 V2282M probably damaging Het
Flnb A G 14: 7,935,967 E2269G possibly damaging Het
Gaa A G 11: 119,278,297 I557V probably benign Het
Gapt T A 13: 110,353,967 Q54L probably benign Het
Gsdmc A T 15: 63,780,003 I253N possibly damaging Het
Mindy2 T C 9: 70,631,162 probably benign Het
Ncor1 A G 11: 62,334,601 V1048A possibly damaging Het
Nlrp4d A T 7: 10,378,334 V636D unknown Het
Nphs1 G T 7: 30,460,511 R82S probably damaging Het
Olfr1269 A G 2: 90,118,965 V211A possibly damaging Het
Olfr1336 G A 7: 6,460,503 probably benign Het
Olfr512 T A 7: 108,713,882 F164L probably benign Het
Papln T A 12: 83,786,835 L1175Q probably benign Het
Rab22a T C 2: 173,688,238 probably benign Het
Rel A G 11: 23,757,035 Y56H probably damaging Het
Sdc4 A G 2: 164,431,207 L61P probably damaging Het
Slc1a4 A G 11: 20,314,089 probably benign Het
Ubr4 T A 4: 139,462,472 C3989* probably null Het
Zfyve16 A G 13: 92,522,569 V278A possibly damaging Het
Other mutations in Kcnj3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00673:Kcnj3 APN 2 55595272 missense possibly damaging 0.88
IGL01988:Kcnj3 APN 2 55437231 missense probably benign 0.43
IGL01989:Kcnj3 APN 2 55437231 missense probably benign 0.43
IGL02004:Kcnj3 APN 2 55437231 missense probably benign 0.43
IGL02035:Kcnj3 APN 2 55437578 missense probably damaging 1.00
R0268:Kcnj3 UTSW 2 55594959 nonsense probably null
R0565:Kcnj3 UTSW 2 55595264 missense probably benign 0.03
R0853:Kcnj3 UTSW 2 55437223 missense possibly damaging 0.69
R1318:Kcnj3 UTSW 2 55437738 missense possibly damaging 0.88
R1592:Kcnj3 UTSW 2 55437886 missense probably damaging 1.00
R1756:Kcnj3 UTSW 2 55437220 missense probably damaging 1.00
R1899:Kcnj3 UTSW 2 55437244 missense probably damaging 1.00
R1966:Kcnj3 UTSW 2 55437331 missense probably damaging 0.99
R2891:Kcnj3 UTSW 2 55447015 missense probably damaging 1.00
R2892:Kcnj3 UTSW 2 55447015 missense probably damaging 1.00
R2893:Kcnj3 UTSW 2 55447015 missense probably damaging 1.00
R3901:Kcnj3 UTSW 2 55437348 missense possibly damaging 0.46
R4470:Kcnj3 UTSW 2 55437865 missense probably damaging 1.00
R4603:Kcnj3 UTSW 2 55446979 nonsense probably null
R4694:Kcnj3 UTSW 2 55594906 missense probably benign 0.00
R4945:Kcnj3 UTSW 2 55437578 missense probably damaging 1.00
R5144:Kcnj3 UTSW 2 55447047 splice site probably null
R5332:Kcnj3 UTSW 2 55437547 missense probably damaging 1.00
R5959:Kcnj3 UTSW 2 55437318 missense probably benign 0.10
R6352:Kcnj3 UTSW 2 55437549 missense probably benign 0.06
R7042:Kcnj3 UTSW 2 55594865 missense possibly damaging 0.87
R7475:Kcnj3 UTSW 2 55437326 missense probably benign 0.09
R7626:Kcnj3 UTSW 2 55594821 nonsense probably null
R7771:Kcnj3 UTSW 2 55446937 missense probably damaging 1.00
Posted On2014-05-07