Incidental Mutation 'R8558:Kcnj3'
ID 660826
Institutional Source Beutler Lab
Gene Symbol Kcnj3
Ensembl Gene ENSMUSG00000026824
Gene Name potassium inwardly-rectifying channel, subfamily J, member 3
Synonyms GIRK1, Kcnf3, Kir3.1
MMRRC Submission 068521-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R8558 (G1)
Quality Score 225.009
Status Not validated
Chromosome 2
Chromosomal Location 55325982-55488157 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 55336875 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Glycine at position 247 (D247G)
Ref Sequence ENSEMBL: ENSMUSP00000063329 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000067101] [ENSMUST00000112632] [ENSMUST00000112633]
AlphaFold P63250
PDB Structure Crystal Structure of the Cytoplasmic Domain of G-protein Activated Inward Rectifier Potassium Channel 1 [X-RAY DIFFRACTION]
Crystal Structure of Cytoplasmic Domains of GIRK1 channel [X-RAY DIFFRACTION]
Crystal structure of a Kir3.1-prokaryotic Kir channel chimera [X-RAY DIFFRACTION]
Crystal structure of the S225E mutant Kir3.1 cytoplasmic pore domain [X-RAY DIFFRACTION]
Predicted Effect possibly damaging
Transcript: ENSMUST00000067101
AA Change: D247G

PolyPhen 2 Score 0.908 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000063329
Gene: ENSMUSG00000026824
AA Change: D247G

DomainStartEndE-ValueType
low complexity region 18 37 N/A INTRINSIC
Pfam:IRK 47 385 3.6e-164 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000112632
SMART Domains Protein: ENSMUSP00000108251
Gene: ENSMUSG00000026824

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: D247G

PolyPhen 2 Score 0.908 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000108252
Gene: ENSMUSG00000026824
AA Change: D247G

DomainStartEndE-ValueType
low complexity region 18 37 N/A INTRINSIC
Pfam:IRK 47 369 1.1e-141 PFAM
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.5%
  • 20x: 98.5%
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: 76 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700017N19Rik A T 10: 100,430,497 (GRCm39) R51S probably benign Het
1700067P10Rik G T 17: 48,400,849 (GRCm39) E45* probably null Het
Abcb5 T C 12: 118,841,566 (GRCm39) T960A probably benign Het
Abcc3 A G 11: 94,242,623 (GRCm39) probably null Het
Adamtsl3 A T 7: 82,077,600 (GRCm39) D95V possibly damaging Het
Ash1l T A 3: 88,891,713 (GRCm39) S1197R probably damaging Het
BC034090 T A 1: 155,097,085 (GRCm39) H671L possibly damaging Het
Bltp1 T A 3: 37,102,750 (GRCm39) M1443K Het
Btnl9 T C 11: 49,071,619 (GRCm39) E68G probably benign Het
C1qtnf1 A T 11: 118,339,149 (GRCm39) Y273F probably damaging Het
C4b A T 17: 34,955,541 (GRCm39) C714S probably damaging Het
Carmil1 G A 13: 24,209,863 (GRCm39) T1204I probably benign Het
Cdk12 T C 11: 98,101,915 (GRCm39) L591P unknown Het
Ces2f T A 8: 105,679,758 (GRCm39) L417* probably null Het
Chl1 T A 6: 103,685,390 (GRCm39) S810R probably benign Het
Ckap2 A G 8: 22,658,811 (GRCm39) V644A possibly damaging Het
Ctdsp2 T A 10: 126,829,746 (GRCm39) V126E probably damaging Het
Dok6 G T 18: 89,492,066 (GRCm39) H170Q probably damaging Het
Dynlrb1 T C 2: 155,084,728 (GRCm39) probably null Het
Eif5b T C 1: 38,083,795 (GRCm39) L757S probably damaging Het
Epas1 A C 17: 87,116,896 (GRCm39) T189P possibly damaging Het
Epha10 C A 4: 124,788,777 (GRCm39) N283K Het
Epha5 C A 5: 84,206,975 (GRCm39) G853C probably damaging Het
Gapvd1 A T 2: 34,594,493 (GRCm39) H831Q probably damaging Het
Gcnt3 T A 9: 69,941,996 (GRCm39) K191* probably null Het
Gm14226 T A 2: 154,866,909 (GRCm39) S289T probably benign Het
Gm4846 T A 1: 166,314,674 (GRCm39) D323V probably damaging Het
Golga3 G T 5: 110,356,421 (GRCm39) R1036L possibly damaging Het
Gopc T C 10: 52,229,580 (GRCm39) Q213R probably damaging Het
Hrh1 G A 6: 114,457,564 (GRCm39) V282M probably benign Het
Ighv5-4 T C 12: 113,561,078 (GRCm39) Y114C probably damaging Het
Igkv10-94 A T 6: 68,681,636 (GRCm39) I68N probably damaging Het
Lcn6 C A 2: 25,570,718 (GRCm39) S102Y probably damaging Het
Matk C A 10: 81,096,765 (GRCm39) H232N probably benign Het
Mcm9 C T 10: 53,492,068 (GRCm39) V366I probably benign Het
Nadk A G 4: 155,669,844 (GRCm39) I176V probably benign Het
Nlrp12 A G 7: 3,298,111 (GRCm39) L20P probably damaging Het
Oga T C 19: 45,746,511 (GRCm39) S763G probably benign Het
Or10ag56 A T 2: 87,139,583 (GRCm39) Q170L probably benign Het
Or1e21 G A 11: 73,344,309 (GRCm39) S243F probably damaging Het
Or4a72 A G 2: 89,405,329 (GRCm39) L247P probably damaging Het
Pcdhgb6 T A 18: 37,877,237 (GRCm39) D648E probably damaging Het
Pkd1l3 A T 8: 110,362,012 (GRCm39) N1018I probably damaging Het
Plch2 T C 4: 155,083,391 (GRCm39) K516E probably damaging Het
Pmpca G C 2: 26,285,046 (GRCm39) E424Q possibly damaging Het
Pnma2 C T 14: 67,153,972 (GRCm39) A132V probably benign Het
Prkn T C 17: 11,456,472 (GRCm39) S99P probably benign Het
Prune2 A G 19: 17,099,602 (GRCm39) E1702G probably damaging Het
Qars1 T A 9: 108,392,422 (GRCm39) H756Q probably benign Het
Rab5a A G 17: 53,790,877 (GRCm39) probably benign Het
Rars2 A G 4: 34,657,199 (GRCm39) D515G probably damaging Het
Rpe65 T A 3: 159,320,429 (GRCm39) C329S probably damaging Het
Rps6ka2 G A 17: 7,523,316 (GRCm39) V231M possibly damaging Het
Rsf1 GCG GCGACGGCGCCG 7: 97,229,114 (GRCm39) probably benign Het
Scrt1 G T 15: 76,403,843 (GRCm39) S49* probably null Het
Sec23b C G 2: 144,428,308 (GRCm39) D640E possibly damaging Het
Setdb1 C T 3: 95,261,979 (GRCm39) V96M possibly damaging Het
Sik3 C A 9: 46,066,746 (GRCm39) A175E probably damaging Het
Smarcad1 A G 6: 65,060,908 (GRCm39) K463E probably benign Het
Sobp A C 10: 43,003,888 (GRCm39) C154G probably damaging Het
Sox6 A G 7: 115,141,033 (GRCm39) S482P probably benign Het
Spen C T 4: 141,197,681 (GRCm39) A3396T probably benign Het
Spink11 T A 18: 44,324,748 (GRCm39) R75* probably null Het
Sptb T C 12: 76,659,561 (GRCm39) H1113R probably benign Het
Sypl2 A T 3: 108,125,004 (GRCm39) V119E probably damaging Het
Tbc1d24 T C 17: 24,427,903 (GRCm39) S20G unknown Het
Tektl1 T C 10: 78,583,035 (GRCm39) K450E probably damaging Het
Top2a A T 11: 98,912,549 (GRCm39) V106D probably damaging Het
Tspyl4 G C 10: 34,174,261 (GRCm39) R251P probably damaging Het
Ttc21a T A 9: 119,787,835 (GRCm39) L801Q probably damaging Het
Vgll3 A G 16: 65,624,844 (GRCm39) E64G probably damaging Het
Vmn2r30 A G 7: 7,315,655 (GRCm39) I726T possibly damaging Het
Vmn2r81 T C 10: 79,106,467 (GRCm39) S482P possibly damaging Het
Wasf1 T G 10: 40,806,648 (GRCm39) M97R possibly damaging Het
Wdr33 T A 18: 31,962,947 (GRCm39) M98K probably benign Het
Wdr73 G A 7: 80,548,254 (GRCm39) T95I probably damaging Het
Other mutations in Kcnj3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00673:Kcnj3 APN 2 55,485,284 (GRCm39) missense possibly damaging 0.88
IGL01889:Kcnj3 APN 2 55,327,216 (GRCm39) missense possibly damaging 0.69
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
R8986:Kcnj3 UTSW 2 55,485,039 (GRCm39) missense probably benign
R9653:Kcnj3 UTSW 2 55,484,864 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- CTGTGTGAGCTACATGAGATTTC -3'
(R):5'- GGTTTCCACAATGCCTTCCAG -3'

Sequencing Primer
(F):5'- GCCCATTCGGTAGAATATAGCTGC -3'
(R):5'- AATGCCTTCCAGGATGACG -3'
Posted On 2021-03-08