Incidental Mutation 'R0565:Kcnj3'
ID46105
Institutional Source Beutler Lab
Gene Symbol Kcnj3
Ensembl Gene ENSMUSG00000026824
Gene Namepotassium inwardly-rectifying channel, subfamily J, member 3
SynonymsGIRK1, Kcnf3, Kir3.1
MMRRC Submission 038756-MU
Accession Numbers
Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R0565 (G1)
Quality Score221
Status Validated
Chromosome2
Chromosomal Location55435970-55598145 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 55595264 bp
ZygosityHeterozygous
Amino Acid Change Methionine to Lysine at position 458 (M458K)
Ref Sequence ENSEMBL: ENSMUSP00000108252 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000067101] [ENSMUST00000112632] [ENSMUST00000112633]
Predicted Effect probably benign
Transcript: ENSMUST00000067101
AA Change: M458K

PolyPhen 2 Score 0.031 (Sensitivity: 0.95; Specificity: 0.82)
SMART Domains Protein: ENSMUSP00000063329
Gene: ENSMUSG00000026824
AA Change: M458K

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 probably benign
Transcript: ENSMUST00000112633
AA Change: M458K

PolyPhen 2 Score 0.031 (Sensitivity: 0.95; Specificity: 0.82)
SMART Domains Protein: ENSMUSP00000108252
Gene: ENSMUSG00000026824
AA Change: M458K

DomainStartEndE-ValueType
low complexity region 18 37 N/A INTRINSIC
Pfam:IRK 47 369 1.1e-141 PFAM
Meta Mutation Damage Score 0.0714 question?
Coding Region Coverage
  • 1x: 99.6%
  • 3x: 98.8%
  • 10x: 96.8%
  • 20x: 93.6%
Validation Efficiency 100% (73/73)
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: 71 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930562C15Rik A T 16: 4,864,336 H1010L probably benign Het
A2ml1 C A 6: 128,568,743 E474* probably null Het
Agtr1b T C 3: 20,315,674 H256R probably damaging Het
Amacr C T 15: 10,981,946 A46V possibly damaging Het
Cabp5 A T 7: 13,401,335 M67L probably damaging Het
Caskin2 T C 11: 115,801,016 E981G probably damaging Het
Ccdc88a A G 11: 29,461,042 probably benign Het
Cd180 A G 13: 102,702,874 probably benign Het
Cemip G A 7: 83,964,110 H627Y probably damaging Het
Cep131 G T 11: 120,073,762 H289Q probably damaging Het
Cep350 G A 1: 155,961,195 probably benign Het
Cfap52 A T 11: 67,949,599 C169S probably benign Het
Cps1 A T 1: 67,166,449 T544S possibly damaging Het
Cul7 T C 17: 46,652,003 S187P probably damaging Het
Dhx40 C A 11: 86,771,167 R688L probably damaging Het
E330034G19Rik C A 14: 24,306,917 Q174K probably benign Het
Efna5 T C 17: 62,881,036 Y32C probably damaging Het
Ethe1 A G 7: 24,607,889 H176R probably benign Het
Exoc3 A G 13: 74,182,275 probably null Het
Fam135b T A 15: 71,490,837 N232Y possibly damaging Het
Fam214b A T 4: 43,034,647 probably benign Het
Fndc9 C T 11: 46,238,157 L168F probably damaging Het
Fpr-rs3 G A 17: 20,624,021 A286V probably damaging Het
Gm609 T A 16: 45,444,173 probably benign Het
Immt T A 6: 71,846,483 probably benign Het
Ipo7 T C 7: 110,049,593 probably benign Het
Ipo8 A T 6: 148,786,723 L747H probably damaging Het
Ireb2 A T 9: 54,899,983 N610Y probably damaging Het
Irs2 A G 8: 11,004,592 V1280A probably damaging Het
Kl A G 5: 150,980,944 K387R possibly damaging Het
L3mbtl2 C A 15: 81,684,286 probably benign Het
Lamb1 A C 12: 31,298,915 I649L probably benign Het
Lipm A C 19: 34,116,506 L274F probably benign Het
Lrfn3 A G 7: 30,360,791 V3A probably benign Het
Lrrc8c A C 5: 105,607,028 D223A probably damaging Het
Ltn1 C A 16: 87,416,010 K554N probably benign Het
Mertk T C 2: 128,771,483 I473T probably benign Het
Mfsd12 C A 10: 81,361,409 N245K probably benign Het
Mmp16 A G 4: 17,987,705 D89G probably damaging Het
Myo5a T A 9: 75,180,112 N1083K probably benign Het
Ncapd3 C T 9: 27,087,998 A1290V probably benign Het
Nefm A G 14: 68,124,621 S65P probably damaging Het
Nt5c2 C T 19: 46,897,625 R220H probably damaging Het
Olfr1189 T A 2: 88,592,009 D68E probably benign Het
Osbpl1a A T 18: 12,759,444 S438R probably damaging Het
Pcdhb5 T C 18: 37,320,767 S67P possibly damaging Het
Per3 A T 4: 151,033,952 I228N probably damaging Het
Pnpla7 T G 2: 24,980,117 probably benign Het
Ppp1r15b G T 1: 133,136,653 probably benign Het
Psmd2 G T 16: 20,660,426 L678F probably null Het
Ptch2 A G 4: 117,106,143 probably benign Het
Ranbp2 T A 10: 58,476,336 D959E probably benign Het
Rph3al C T 11: 75,833,401 probably null Het
Sec31b T A 19: 44,524,553 E499V probably damaging Het
Sel1l T C 12: 91,811,889 I667M probably benign Het
Sel1l C A 12: 91,813,945 V641L possibly damaging Het
Slc7a1 T A 5: 148,352,069 I123F probably damaging Het
Smarca2 G A 19: 26,681,875 R855Q possibly damaging Het
Sphk1 G T 11: 116,536,358 probably benign Het
Spink12 C A 18: 44,104,688 S11* probably null Het
Sstr2 A T 11: 113,625,619 I342F probably benign Het
Stxbp1 T C 2: 32,819,848 T78A probably benign Het
Trim11 T A 11: 58,990,584 S434R probably damaging Het
Ubr2 T C 17: 46,955,886 E1113G probably damaging Het
Upb1 T A 10: 75,428,354 probably benign Het
Vit T A 17: 78,624,837 C458S probably damaging Het
Vmn1r58 T C 7: 5,411,166 I22V probably benign Het
Vps25 T C 11: 101,258,905 probably benign Het
Wbp2 G T 11: 116,082,385 D65E possibly damaging Het
Wdr72 A G 9: 74,217,306 D980G probably benign Het
Xkr8 A C 4: 132,730,917 probably null Het
Other mutations in Kcnj3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00673:Kcnj3 APN 2 55595272 missense possibly damaging 0.88
IGL01889:Kcnj3 APN 2 55437204 missense possibly damaging 0.69
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
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
Predicted Primers PCR Primer
(F):5'- CGATTACTCCCAGTTCCATGCAACC -3'
(R):5'- TTTGCCAGGCTAGGATAGACCTCTC -3'

Sequencing Primer
(F):5'- CAGGAGGAAATGCTTCTCATGTC -3'
(R):5'- GGCTAGGATAGACCTCTCAGATTTC -3'
Posted On2013-06-11