Incidental Mutation 'R7713:Kcnj2'
ID 594744
Institutional Source Beutler Lab
Gene Symbol Kcnj2
Ensembl Gene ENSMUSG00000041695
Gene Name potassium inwardly-rectifying channel, subfamily J, member 2
Synonyms Kcnf1, IRK1, Kir2.1
MMRRC Submission 045771-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R7713 (G1)
Quality Score 225.009
Status Not validated
Chromosome 11
Chromosomal Location 110956990-110967647 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 110963309 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Proline at position 234 (S234P)
Ref Sequence ENSEMBL: ENSMUSP00000037192 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000042970]
AlphaFold P35561
PDB Structure Crystal Structure of Cytoplasmic Domains of IRK1 (Kir2.1) channel [X-RAY DIFFRACTION]
Cytoplasmic Domain Structure of Kir2.1 containing Andersen's Mutation R218Q and Rescue Mutation T309K [X-RAY DIFFRACTION]
Single particle analysis of Kir2.1NC_4 in negative stain [SOLUTION SCATTERING, ELECTRON MICROSCOPY]
Predicted Effect probably benign
Transcript: ENSMUST00000042970
AA Change: S234P

PolyPhen 2 Score 0.002 (Sensitivity: 0.99; Specificity: 0.30)
SMART Domains Protein: ENSMUSP00000037192
Gene: ENSMUSG00000041695
AA Change: S234P

DomainStartEndE-ValueType
Pfam:IRK_N 1 47 2.9e-29 PFAM
Pfam:IRK 48 373 7.3e-158 PFAM
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 100.0%
  • 10x: 99.7%
  • 20x: 99.2%
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, probably participates in establishing action potential waveform and excitability of neuronal and muscle tissues. Mutations in this gene have been associated with Andersen syndrome, which is characterized by periodic paralysis, cardiac arrhythmias, and dysmorphic features. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a targeted null mutation die within 8-12 hours after birth, displaying cyanosis and respiratory distress, as well as complete cleft of the secondary palate, and loss of K+-mediated vasodilatation in cerebral arteries. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 41 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700113H08Rik T C 10: 87,066,173 (GRCm39) S119P possibly damaging Het
Agtpbp1 T A 13: 59,661,966 (GRCm39) I282F probably damaging Het
Armh1 A T 4: 117,071,425 (GRCm39) M355K possibly damaging Het
Cep128 A T 12: 90,986,096 (GRCm39) D1013E probably benign Het
Clock A T 5: 76,393,267 (GRCm39) probably null Het
Cspg4b T G 13: 113,483,075 (GRCm39) V1559G Het
D630003M21Rik G A 2: 158,058,698 (GRCm39) Q401* probably null Het
Dnah17 C A 11: 117,915,997 (GRCm39) V4302L probably benign Het
Drc3 A G 11: 60,261,386 (GRCm39) Y179C probably benign Het
Erbb3 T C 10: 128,410,318 (GRCm39) T647A probably benign Het
Esrp2 T C 8: 106,860,908 (GRCm39) T205A probably benign Het
Fbxw7 T C 3: 84,874,872 (GRCm39) probably null Het
Fmn1 C T 2: 113,356,159 (GRCm39) P965S unknown Het
Fndc7 C T 3: 108,777,979 (GRCm39) V412M possibly damaging Het
G2e3 C A 12: 51,415,839 (GRCm39) A525E probably damaging Het
Gcfc2 C T 6: 81,918,371 (GRCm39) R354C probably damaging Het
Ggt1 T A 10: 75,421,508 (GRCm39) N510K probably damaging Het
Gnas C T 2: 174,140,820 (GRCm39) T389I unknown Het
Hapln3 C T 7: 78,767,121 (GRCm39) R306H probably benign Het
Hydin T C 8: 111,320,444 (GRCm39) L4496P possibly damaging Het
Iqgap2 T A 13: 95,867,952 (GRCm39) I219L probably benign Het
Lipf T A 19: 33,950,465 (GRCm39) S286T probably damaging Het
Lrrc32 G T 7: 98,148,545 (GRCm39) G442W probably damaging Het
Megf10 GGCAGCAACAGCACCAGCAGCAACAGCACCAGCAGCA GGCAGCAACAGCACCAGCAGCA 18: 57,427,071 (GRCm39) probably benign Het
Mtmr4 T C 11: 87,488,550 (GRCm39) V68A probably damaging Het
Mug2 T C 6: 122,055,754 (GRCm39) S1146P possibly damaging Het
Naa35 T C 13: 59,745,919 (GRCm39) I75T probably benign Het
Nepn T A 10: 52,277,274 (GRCm39) F337I probably benign Het
Nf1 A G 11: 79,316,432 (GRCm39) M496V probably benign Het
Nthl1 A T 17: 24,857,631 (GRCm39) I277F possibly damaging Het
Or10a3 A C 7: 108,479,889 (GRCm39) I308S probably damaging Het
Or4p8 T C 2: 88,728,122 (GRCm39) probably benign Het
Osr1 A T 12: 9,629,253 (GRCm39) Y42F probably damaging Het
Rad54l2 G A 9: 106,594,422 (GRCm39) R369W probably damaging Het
Ryr3 T A 2: 112,465,691 (GRCm39) T4828S probably benign Het
Slc25a54 T A 3: 109,010,133 (GRCm39) C211S probably damaging Het
Ube4b C T 4: 149,483,238 (GRCm39) R10Q possibly damaging Het
Usp9y G A Y: 1,304,411 (GRCm39) Q2440* probably null Het
Yars1 G T 4: 129,104,291 (GRCm39) V312L probably benign Het
Zfp26 G A 9: 20,352,630 (GRCm39) T145I probably benign Het
Zic5 T C 14: 122,701,525 (GRCm39) N402S unknown Het
Other mutations in Kcnj2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00566:Kcnj2 APN 11 110,962,653 (GRCm39) missense probably damaging 1.00
IGL02448:Kcnj2 APN 11 110,963,108 (GRCm39) missense probably benign 0.00
R0090:Kcnj2 UTSW 11 110,963,853 (GRCm39) missense probably benign 0.02
R1162:Kcnj2 UTSW 11 110,963,793 (GRCm39) missense probably benign
R1990:Kcnj2 UTSW 11 110,963,709 (GRCm39) missense probably benign 0.00
R3948:Kcnj2 UTSW 11 110,963,481 (GRCm39) missense possibly damaging 0.73
R4417:Kcnj2 UTSW 11 110,963,015 (GRCm39) missense probably damaging 1.00
R4605:Kcnj2 UTSW 11 110,963,676 (GRCm39) missense probably damaging 1.00
R5191:Kcnj2 UTSW 11 110,963,297 (GRCm39) nonsense probably null
R5439:Kcnj2 UTSW 11 110,963,057 (GRCm39) missense probably damaging 1.00
R5530:Kcnj2 UTSW 11 110,962,917 (GRCm39) missense probably damaging 1.00
R6167:Kcnj2 UTSW 11 110,963,315 (GRCm39) missense probably benign
R7126:Kcnj2 UTSW 11 110,963,648 (GRCm39) missense probably damaging 1.00
R8007:Kcnj2 UTSW 11 110,963,884 (GRCm39) missense probably benign 0.24
R9019:Kcnj2 UTSW 11 110,963,415 (GRCm39) missense probably damaging 1.00
R9072:Kcnj2 UTSW 11 110,962,664 (GRCm39) missense possibly damaging 0.49
R9073:Kcnj2 UTSW 11 110,962,664 (GRCm39) missense possibly damaging 0.49
R9252:Kcnj2 UTSW 11 110,963,355 (GRCm39) missense probably damaging 1.00
R9327:Kcnj2 UTSW 11 110,963,719 (GRCm39) missense probably benign 0.07
R9418:Kcnj2 UTSW 11 110,963,357 (GRCm39) missense probably damaging 1.00
X0052:Kcnj2 UTSW 11 110,962,682 (GRCm39) missense probably benign 0.13
Z1176:Kcnj2 UTSW 11 110,962,961 (GRCm39) missense probably benign
Predicted Primers PCR Primer
(F):5'- TCATTGGTGCAGTCATGGCG -3'
(R):5'- TGAGTTGTCATGGCAGTCGC -3'

Sequencing Primer
(F):5'- CAGTCATGGCGAAGATGGC -3'
(R):5'- GCCTTCCAGTATGACAACAATTTC -3'
Posted On 2019-11-12