Incidental Mutation 'R0041:Kcnk2'
ID 15741
Institutional Source Beutler Lab
Gene Symbol Kcnk2
Ensembl Gene ENSMUSG00000037624
Gene Name potassium channel, subfamily K, member 2
Synonyms TREK-1
MMRRC Submission 038335-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.080) question?
Stock # R0041 (G1)
Quality Score
Status Validated
Chromosome 1
Chromosomal Location 188940127-189134470 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to T at 189027888 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Asparagine to Lysine at position 122 (N122K)
Ref Sequence ENSEMBL: ENSMUSP00000142176 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000079451] [ENSMUST00000110920] [ENSMUST00000180044] [ENSMUST00000192723] [ENSMUST00000193319] [ENSMUST00000194172] [ENSMUST00000194402]
AlphaFold P97438
Predicted Effect probably benign
Transcript: ENSMUST00000079451
AA Change: N114K

PolyPhen 2 Score 0.040 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000078416
Gene: ENSMUSG00000037624
AA Change: N114K

DomainStartEndE-ValueType
Pfam:Ion_trans_2 117 197 2e-20 PFAM
low complexity region 221 230 N/A INTRINSIC
Pfam:Ion_trans_2 233 313 6.8e-22 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000110920
AA Change: N111K

PolyPhen 2 Score 0.386 (Sensitivity: 0.90; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000106545
Gene: ENSMUSG00000037624
AA Change: N111K

DomainStartEndE-ValueType
Pfam:Ion_trans_2 102 183 2.4e-21 PFAM
Pfam:Ion_trans_2 211 298 3.7e-21 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000180044
SMART Domains Protein: ENSMUSP00000136513
Gene: ENSMUSG00000037624

DomainStartEndE-ValueType
Pfam:Ion_trans_2 102 183 2.4e-21 PFAM
Pfam:Ion_trans_2 211 298 3.7e-21 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000192723
AA Change: N111K

PolyPhen 2 Score 0.386 (Sensitivity: 0.90; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000141849
Gene: ENSMUSG00000037624
AA Change: N111K

DomainStartEndE-ValueType
Pfam:Ion_trans_2 102 183 2.4e-21 PFAM
Pfam:Ion_trans_2 211 298 3.7e-21 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000193319
AA Change: N126K

PolyPhen 2 Score 0.040 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000141891
Gene: ENSMUSG00000037624
AA Change: N126K

DomainStartEndE-ValueType
Pfam:Ion_trans_2 117 198 2.5e-21 PFAM
Pfam:Ion_trans_2 226 313 3.7e-21 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000194172
AA Change: N122K

PolyPhen 2 Score 0.440 (Sensitivity: 0.89; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000142176
Gene: ENSMUSG00000037624
AA Change: N122K

DomainStartEndE-ValueType
transmembrane domain 57 76 N/A INTRINSIC
Pfam:Ion_trans_2 113 194 5e-20 PFAM
low complexity region 216 231 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000194402
AA Change: N122K

PolyPhen 2 Score 0.040 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000142026
Gene: ENSMUSG00000037624
AA Change: N122K

DomainStartEndE-ValueType
transmembrane domain 57 76 N/A INTRINSIC
Pfam:Ion_trans_2 113 194 1.4e-19 PFAM
Pfam:Ion_trans_2 222 309 2.2e-19 PFAM
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 77.6%
  • 3x: 65.6%
  • 10x: 37.8%
  • 20x: 19.1%
Validation Efficiency 90% (47/52)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes one of the members of the two-pore-domain background potassium channel protein family. This type of potassium channel is formed by two homodimers that create a channel that leaks potassium out of the cell to control resting membrane potential. The channel can be opened, however, by certain anesthetics, membrane stretching, intracellular acidosis, and heat. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygous null mice display increased sensitivity to pharmacologically induced seizures and ischemia. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 24 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adgra3 A G 5: 50,117,901 (GRCm39) Y1216H probably benign Het
Avpi1 C A 19: 42,112,223 (GRCm39) E112* probably null Het
Braf C T 6: 39,617,413 (GRCm39) A534T probably damaging Het
Cntnap5c C A 17: 58,183,464 (GRCm39) Q57K probably benign Het
Dlk1 G C 12: 109,421,439 (GRCm39) G50A probably damaging Het
Dtna C T 18: 23,779,932 (GRCm39) probably benign Het
Fancm T A 12: 65,153,217 (GRCm39) C1224* probably null Het
Gigyf2 A C 1: 87,306,698 (GRCm39) R129S probably damaging Het
Lrrc7 G A 3: 157,869,897 (GRCm39) probably benign Het
Msto1 A G 3: 88,817,542 (GRCm39) S464P probably damaging Het
Myh1 A C 11: 67,099,904 (GRCm39) N605H possibly damaging Het
Olfml1 A T 7: 107,189,393 (GRCm39) I153L possibly damaging Het
Plekhg1 T A 10: 3,914,074 (GRCm39) N1265K probably benign Het
Prss59 A T 6: 40,903,042 (GRCm39) L110* probably null Het
Rlf T A 4: 121,007,126 (GRCm39) H618L probably damaging Het
Rock1 T C 18: 10,140,240 (GRCm39) D117G probably damaging Het
Serpinb6d A G 13: 33,851,615 (GRCm39) D124G probably damaging Het
Slco1a1 A G 6: 141,864,185 (GRCm39) probably benign Het
Swap70 A G 7: 109,878,562 (GRCm39) K511E probably benign Het
Synb T C 14: 69,747,926 (GRCm39) T193A probably damaging Het
Syt11 A G 3: 88,655,210 (GRCm39) Y364H probably damaging Het
Vcan T A 13: 89,810,104 (GRCm39) H3229L probably damaging Het
Wdr64 G A 1: 175,554,037 (GRCm39) W189* probably null Het
Zfp1001 A G 2: 150,165,745 (GRCm39) I42V possibly damaging Het
Other mutations in Kcnk2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00955:Kcnk2 APN 1 188,975,211 (GRCm39) missense probably damaging 0.96
IGL01100:Kcnk2 APN 1 189,072,133 (GRCm39) missense probably damaging 1.00
IGL01872:Kcnk2 APN 1 188,988,780 (GRCm39) missense probably damaging 1.00
IGL01929:Kcnk2 APN 1 189,072,227 (GRCm39) missense probably damaging 1.00
IGL02643:Kcnk2 APN 1 188,990,976 (GRCm39) missense possibly damaging 0.63
IGL03056:Kcnk2 APN 1 189,027,908 (GRCm39) missense possibly damaging 0.82
IGL03340:Kcnk2 APN 1 189,027,878 (GRCm39) missense possibly damaging 0.51
R0041:Kcnk2 UTSW 1 189,027,888 (GRCm39) missense probably benign 0.44
R0279:Kcnk2 UTSW 1 188,942,169 (GRCm39) missense possibly damaging 0.58
R0569:Kcnk2 UTSW 1 189,071,998 (GRCm39) missense probably damaging 1.00
R0645:Kcnk2 UTSW 1 188,988,927 (GRCm39) splice site probably null
R1070:Kcnk2 UTSW 1 188,988,960 (GRCm39) splice site probably benign
R1449:Kcnk2 UTSW 1 189,072,223 (GRCm39) missense probably benign 0.31
R2401:Kcnk2 UTSW 1 189,072,214 (GRCm39) missense possibly damaging 0.64
R4418:Kcnk2 UTSW 1 188,988,924 (GRCm39) missense probably damaging 1.00
R4923:Kcnk2 UTSW 1 189,072,133 (GRCm39) missense probably damaging 1.00
R5782:Kcnk2 UTSW 1 188,988,776 (GRCm39) missense probably damaging 1.00
R5845:Kcnk2 UTSW 1 189,009,918 (GRCm39) intron probably benign
R6140:Kcnk2 UTSW 1 188,942,104 (GRCm39) missense probably damaging 0.97
R6240:Kcnk2 UTSW 1 188,975,179 (GRCm39) missense probably damaging 1.00
R6881:Kcnk2 UTSW 1 188,942,187 (GRCm39) missense probably benign 0.00
R7990:Kcnk2 UTSW 1 188,942,102 (GRCm39) missense probably damaging 0.99
R8046:Kcnk2 UTSW 1 188,990,933 (GRCm39) critical splice donor site probably null
R8322:Kcnk2 UTSW 1 189,072,046 (GRCm39) missense probably benign 0.00
R9099:Kcnk2 UTSW 1 188,991,072 (GRCm39) missense probably damaging 1.00
R9482:Kcnk2 UTSW 1 188,988,891 (GRCm39) frame shift probably null
R9484:Kcnk2 UTSW 1 188,988,891 (GRCm39) frame shift probably null
R9576:Kcnk2 UTSW 1 188,988,891 (GRCm39) frame shift probably null
R9577:Kcnk2 UTSW 1 188,988,891 (GRCm39) frame shift probably null
R9578:Kcnk2 UTSW 1 188,988,891 (GRCm39) frame shift probably null
Posted On 2012-12-21