Incidental Mutation 'IGL01889:Kcnj3'
ID 179207
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Kcnj3
Ensembl Gene ENSMUSG00000026824
Gene Name potassium inwardly-rectifying channel, subfamily J, member 3
Synonyms GIRK1, Kcnf3, Kir3.1
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # IGL01889
Quality Score
Status
Chromosome 2
Chromosomal Location 55325982-55488157 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 55327216 bp (GRCm39)
Zygosity Heterozygous
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]
AlphaFold P63250
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: 92,804,981 (GRCm39) probably benign Het
Brap G A 5: 121,798,881 (GRCm39) V18I probably benign Het
Csmd1 C T 8: 16,048,857 (GRCm39) V2282M probably damaging Het
Flnb A G 14: 7,935,967 (GRCm38) E2269G possibly damaging Het
Gaa A G 11: 119,169,123 (GRCm39) I557V probably benign Het
Gapt T A 13: 110,490,501 (GRCm39) Q54L probably benign Het
Gsdmc A T 15: 63,651,852 (GRCm39) I253N possibly damaging Het
Mindy2 T C 9: 70,538,444 (GRCm39) probably benign Het
Ncor1 A G 11: 62,225,427 (GRCm39) V1048A possibly damaging Het
Nlrp4d A T 7: 10,112,261 (GRCm39) V636D unknown Het
Nphs1 G T 7: 30,159,936 (GRCm39) R82S probably damaging Het
Or10a3m T A 7: 108,313,089 (GRCm39) F164L probably benign Het
Or4x6 A G 2: 89,949,309 (GRCm39) V211A possibly damaging Het
Or6z3 G A 7: 6,463,502 (GRCm39) probably benign Het
Papln T A 12: 83,833,609 (GRCm39) L1175Q probably benign Het
Rab22a T C 2: 173,530,031 (GRCm39) probably benign Het
Rel A G 11: 23,707,035 (GRCm39) Y56H probably damaging Het
Sdc4 A G 2: 164,273,127 (GRCm39) L61P probably damaging Het
Slc1a4 A G 11: 20,264,089 (GRCm39) probably benign Het
Ubr4 T A 4: 139,189,783 (GRCm39) C3989* probably null Het
Zfyve16 A G 13: 92,659,077 (GRCm39) V278A possibly damaging Het
Other mutations in Kcnj3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00673:Kcnj3 APN 2 55,485,284 (GRCm39) missense possibly damaging 0.88
IGL01988:Kcnj3 APN 2 55,327,243 (GRCm39) missense probably benign 0.43
IGL01989:Kcnj3 APN 2 55,327,243 (GRCm39) missense probably benign 0.43
IGL02004:Kcnj3 APN 2 55,327,243 (GRCm39) missense probably benign 0.43
IGL02035:Kcnj3 APN 2 55,327,590 (GRCm39) missense probably damaging 1.00
R0268:Kcnj3 UTSW 2 55,484,971 (GRCm39) nonsense probably null
R0565:Kcnj3 UTSW 2 55,485,276 (GRCm39) missense probably benign 0.03
R0853:Kcnj3 UTSW 2 55,327,235 (GRCm39) missense possibly damaging 0.69
R1318:Kcnj3 UTSW 2 55,327,750 (GRCm39) missense possibly damaging 0.88
R1592:Kcnj3 UTSW 2 55,327,898 (GRCm39) missense probably damaging 1.00
R1756:Kcnj3 UTSW 2 55,327,232 (GRCm39) missense probably damaging 1.00
R1899:Kcnj3 UTSW 2 55,327,256 (GRCm39) missense probably damaging 1.00
R1966:Kcnj3 UTSW 2 55,327,343 (GRCm39) missense probably damaging 0.99
R2891:Kcnj3 UTSW 2 55,337,027 (GRCm39) missense probably damaging 1.00
R2892:Kcnj3 UTSW 2 55,337,027 (GRCm39) missense probably damaging 1.00
R2893:Kcnj3 UTSW 2 55,337,027 (GRCm39) missense probably damaging 1.00
R3901:Kcnj3 UTSW 2 55,327,360 (GRCm39) missense possibly damaging 0.46
R4470:Kcnj3 UTSW 2 55,327,877 (GRCm39) missense probably damaging 1.00
R4603:Kcnj3 UTSW 2 55,336,991 (GRCm39) nonsense probably null
R4694:Kcnj3 UTSW 2 55,484,918 (GRCm39) missense probably benign 0.00
R4945:Kcnj3 UTSW 2 55,327,590 (GRCm39) missense probably damaging 1.00
R5144:Kcnj3 UTSW 2 55,337,059 (GRCm39) splice site probably null
R5332:Kcnj3 UTSW 2 55,327,559 (GRCm39) missense probably damaging 1.00
R5959:Kcnj3 UTSW 2 55,327,330 (GRCm39) missense probably benign 0.10
R6352:Kcnj3 UTSW 2 55,327,561 (GRCm39) missense probably benign 0.06
R7042:Kcnj3 UTSW 2 55,484,877 (GRCm39) missense possibly damaging 0.87
R7475:Kcnj3 UTSW 2 55,327,338 (GRCm39) missense probably benign 0.09
R7626:Kcnj3 UTSW 2 55,484,833 (GRCm39) nonsense probably null
R7771:Kcnj3 UTSW 2 55,336,949 (GRCm39) missense probably damaging 1.00
R8225:Kcnj3 UTSW 2 55,327,726 (GRCm39) missense probably damaging 1.00
R8558:Kcnj3 UTSW 2 55,336,875 (GRCm39) missense possibly damaging 0.91
R8986:Kcnj3 UTSW 2 55,485,039 (GRCm39) missense probably benign
R9653:Kcnj3 UTSW 2 55,484,864 (GRCm39) missense probably damaging 1.00
Posted On 2014-05-07