Incidental Mutation 'R8072:Kcnj1'
ID 620294
Institutional Source Beutler Lab
Gene Symbol Kcnj1
Ensembl Gene ENSMUSG00000041248
Gene Name potassium inwardly-rectifying channel, subfamily J, member 1
Synonyms ROMK-2, Kir1.1, ROMK
MMRRC Submission 067507-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.069) question?
Stock # R8072 (G1)
Quality Score 225.009
Status Not validated
Chromosome 9
Chromosomal Location 32283789-32310493 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 32308593 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Glutamine at position 339 (R339Q)
Ref Sequence ENSEMBL: ENSMUSP00000131625 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000047334] [ENSMUST00000172015] [ENSMUST00000213393]
AlphaFold O88335
Predicted Effect probably damaging
Transcript: ENSMUST00000047334
AA Change: R319Q

PolyPhen 2 Score 0.998 (Sensitivity: 0.27; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000046793
Gene: ENSMUSG00000041248
AA Change: R319Q

DomainStartEndE-ValueType
Pfam:IRK 24 361 1.4e-155 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000172015
AA Change: R339Q

PolyPhen 2 Score 0.998 (Sensitivity: 0.27; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000131625
Gene: ENSMUSG00000041248
AA Change: R339Q

DomainStartEndE-ValueType
Pfam:IRK 44 373 7.6e-144 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000213393
AA Change: R319Q

PolyPhen 2 Score 0.998 (Sensitivity: 0.27; Specificity: 0.99)
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.3%
  • 20x: 97.5%
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. It is activated by internal ATP and probably plays an important role in potassium homeostasis. The encoded protein has a greater tendency to allow potassium to flow into a cell rather than out of a cell. Mutations in this gene have been associated with antenatal Bartter syndrome, which is characterized by salt wasting, hypokalemic alkalosis, hypercalciuria, and low blood pressure. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
PHENOTYPE: Most homozygotes for a null mutation die before weaning with impaired electrolyte, acid-base, and fluid-volume homeostasis, reduced NaCl absorption in the thick ascending limb, and abnormal tubuloglomerular feedback. A colony of mutants with extended suvival serves as a model for Bartter's syndrome. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 47 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca13 T C 11: 9,244,574 (GRCm39) S2146P probably benign Het
Acad9 G A 3: 36,129,404 (GRCm39) V160I probably benign Het
Ace T C 11: 105,863,785 (GRCm39) V411A probably damaging Het
Ankrd66 T C 17: 43,854,526 (GRCm39) E2G possibly damaging Het
Apol6 A T 15: 76,935,303 (GRCm39) T191S probably benign Het
Arhgef17 T A 7: 100,531,004 (GRCm39) T352S probably benign Het
Atad2 C T 15: 57,963,374 (GRCm39) R1081Q possibly damaging Het
Atg3 G T 16: 45,008,048 (GRCm39) V297F probably damaging Het
Atp9b A C 18: 80,808,276 (GRCm39) S663A Het
Col10a1 G T 10: 34,266,663 (GRCm39) V16F unknown Het
Col3a1 G A 1: 45,360,734 (GRCm39) V55I unknown Het
Ctns T C 11: 73,082,572 (GRCm39) T53A probably benign Het
Cyp2b23 A T 7: 26,365,431 (GRCm39) I468N probably damaging Het
Dcbld2 G A 16: 58,283,460 (GRCm39) W565* probably null Het
Esco2 A T 14: 66,070,130 (GRCm39) N16K probably benign Het
Fggy A G 4: 95,732,394 (GRCm39) N462D possibly damaging Het
Fhod3 TGAGGAGGAGGAGGAGGA TGAGGAGGAGGAGGA 18: 25,153,722 (GRCm39) probably benign Het
Gm4846 T C 1: 166,322,241 (GRCm39) T109A probably benign Het
H2-M11 G T 17: 36,859,026 (GRCm39) V189L probably benign Het
Hmcn1 T A 1: 150,532,256 (GRCm39) T3175S possibly damaging Het
Hook2 G A 8: 85,721,120 (GRCm39) V184M probably benign Het
Hspa4l A T 3: 40,741,178 (GRCm39) D730V probably damaging Het
Igkv4-68 C T 6: 69,282,113 (GRCm39) M19I probably benign Het
Igsf9b C A 9: 27,228,660 (GRCm39) T140N possibly damaging Het
Lcn8 T G 2: 25,545,184 (GRCm39) L118W probably damaging Het
Lin28a A G 4: 133,745,453 (GRCm39) F47L possibly damaging Het
Loxl4 T C 19: 42,596,021 (GRCm39) E144G probably damaging Het
Mmp1a TG TGG 9: 7,465,083 (GRCm38) probably null Het
Mrgprb1 C A 7: 48,097,895 (GRCm39) E6* probably null Het
Mthfsd A C 8: 121,825,555 (GRCm39) Y339D probably damaging Het
Mup11 A T 4: 60,615,777 (GRCm39) F153L probably damaging Het
Pcdhac2 G A 18: 37,278,717 (GRCm39) V566M probably benign Het
Plpp7 G T 2: 31,986,121 (GRCm39) A100S probably benign Het
Prg4 T C 1: 150,331,774 (GRCm39) T300A possibly damaging Het
Ptprd A G 4: 76,004,273 (GRCm39) F161L probably benign Het
Pwp2 G A 10: 78,007,930 (GRCm39) A875V possibly damaging Het
Rhd A G 4: 134,611,460 (GRCm39) T207A possibly damaging Het
Sh2d3c C T 2: 32,643,150 (GRCm39) R778C probably damaging Het
Slc34a3 A C 2: 25,119,289 (GRCm39) V527G probably benign Het
Smad2 T C 18: 76,420,022 (GRCm39) probably null Het
Sp110 GTACT GTACTACT 1: 85,515,207 (GRCm39) probably benign Het
Spata21 C T 4: 140,839,317 (GRCm39) Q611* probably null Het
Taf4b A G 18: 14,954,585 (GRCm39) T554A probably benign Het
Tial1 T C 7: 128,044,194 (GRCm39) T107A unknown Het
Ubxn6 C A 17: 56,380,195 (GRCm39) R42L probably benign Het
Vmn2r90 A T 17: 17,947,142 (GRCm39) N473I probably damaging Het
Ythdc1 T A 5: 86,969,133 (GRCm39) Y351* probably null Het
Other mutations in Kcnj1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00941:Kcnj1 APN 9 32,307,794 (GRCm39) missense probably benign 0.01
IGL02958:Kcnj1 APN 9 32,307,851 (GRCm39) missense probably damaging 1.00
IGL03285:Kcnj1 APN 9 32,308,157 (GRCm39) missense possibly damaging 0.67
R1179:Kcnj1 UTSW 9 32,308,062 (GRCm39) missense probably damaging 0.96
R1503:Kcnj1 UTSW 9 32,307,788 (GRCm39) missense probably damaging 0.98
R1918:Kcnj1 UTSW 9 32,308,034 (GRCm39) missense probably benign 0.00
R4439:Kcnj1 UTSW 9 32,305,414 (GRCm39) intron probably benign
R4659:Kcnj1 UTSW 9 32,305,444 (GRCm39) missense probably benign
R4661:Kcnj1 UTSW 9 32,307,918 (GRCm39) missense probably benign 0.14
R4917:Kcnj1 UTSW 9 32,308,056 (GRCm39) missense probably damaging 0.99
R4918:Kcnj1 UTSW 9 32,308,056 (GRCm39) missense probably damaging 0.99
R5385:Kcnj1 UTSW 9 32,308,019 (GRCm39) missense probably damaging 1.00
R6017:Kcnj1 UTSW 9 32,305,400 (GRCm39) intron probably benign
R6036:Kcnj1 UTSW 9 32,308,421 (GRCm39) missense probably benign 0.15
R6036:Kcnj1 UTSW 9 32,308,421 (GRCm39) missense probably benign 0.15
R6117:Kcnj1 UTSW 9 32,308,478 (GRCm39) missense probably damaging 1.00
R6245:Kcnj1 UTSW 9 32,308,163 (GRCm39) missense probably damaging 1.00
R6316:Kcnj1 UTSW 9 32,308,632 (GRCm39) missense probably damaging 0.96
R6585:Kcnj1 UTSW 9 32,308,557 (GRCm39) missense probably benign
R6988:Kcnj1 UTSW 9 32,307,881 (GRCm39) missense probably benign 0.17
R7116:Kcnj1 UTSW 9 32,308,277 (GRCm39) missense possibly damaging 0.91
R7393:Kcnj1 UTSW 9 32,308,314 (GRCm39) missense probably damaging 1.00
R7870:Kcnj1 UTSW 9 32,307,881 (GRCm39) missense probably benign 0.17
R8391:Kcnj1 UTSW 9 32,308,028 (GRCm39) missense probably damaging 1.00
R9264:Kcnj1 UTSW 9 32,307,654 (GRCm39) missense probably benign 0.03
R9418:Kcnj1 UTSW 9 32,308,203 (GRCm39) missense probably damaging 1.00
Z1177:Kcnj1 UTSW 9 32,308,655 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- ATGGCGGCAGAAACTCTTTCC -3'
(R):5'- ATGCTTCTGAACACAGCCAG -3'

Sequencing Primer
(F):5'- TCCCAACAGGACTTCGAGTTG -3'
(R):5'- AGCACTTAGGTCCTTGAGAGACTC -3'
Posted On 2020-01-23