Incidental Mutation 'R0041:Kcnk2'
ID 64695
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: 0.102) question?
Stock # R0041 (G1)
Quality Score 148
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: 99.4%
  • 3x: 98.9%
  • 10x: 97.8%
  • 20x: 96.3%
Validation Efficiency 97% (58/60)
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: 49 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adamts13 A G 2: 26,873,986 (GRCm39) R412G probably damaging Het
Adamts3 T A 5: 89,832,326 (GRCm39) N927Y probably benign Het
Adgra3 A G 5: 50,117,901 (GRCm39) Y1216H probably benign Het
Agpat3 C A 10: 78,123,881 (GRCm39) probably benign Het
AI182371 T A 2: 34,975,733 (GRCm39) Q277L possibly damaging Het
Arhgef15 A T 11: 68,845,342 (GRCm39) L170Q possibly damaging 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
Bspry G C 4: 62,404,791 (GRCm39) A196P probably damaging Het
Cacna1c T A 6: 118,570,988 (GRCm39) L2095F probably damaging Het
Cdhr2 A T 13: 54,874,651 (GRCm39) S908C probably damaging Het
Cntnap5c C A 17: 58,183,464 (GRCm39) Q57K probably benign Het
Dtna C T 18: 23,779,932 (GRCm39) probably benign Het
Dynap A G 18: 70,375,105 (GRCm39) S37P possibly damaging Het
Efna5 A T 17: 62,914,467 (GRCm39) probably benign Het
Fancm T A 12: 65,153,217 (GRCm39) C1224* probably null Het
Fbxw16 T A 9: 109,277,232 (GRCm39) S37C probably damaging Het
Galnt4 A G 10: 98,944,374 (GRCm39) Y33C probably benign Het
Krt71 C A 15: 101,647,753 (GRCm39) E222D probably damaging Het
Ltf T A 9: 110,858,636 (GRCm39) D461E possibly damaging Het
Mapk4 A T 18: 74,068,109 (GRCm39) L274Q probably damaging Het
Mbd6 A G 10: 127,122,741 (GRCm39) C103R probably damaging Het
Nbeal1 A G 1: 60,321,030 (GRCm39) N2047S probably benign Het
Nefh C T 11: 4,895,184 (GRCm39) S335N possibly damaging Het
Obscn G T 11: 58,934,803 (GRCm39) H4715N probably damaging Het
Olfml1 A T 7: 107,189,393 (GRCm39) I153L possibly damaging Het
Or6d13 G A 6: 116,518,295 (GRCm39) V294I possibly damaging Het
Or8g34 T A 9: 39,372,772 (GRCm39) F12Y probably benign Het
Pck1 A G 2: 172,997,003 (GRCm39) E215G probably benign Het
Peg12 T A 7: 62,113,308 (GRCm39) E263V unknown Het
Phkg1 T A 5: 129,903,103 (GRCm39) T15S probably benign Het
Plekhg1 T A 10: 3,914,076 (GRCm39) L1120* probably null 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
Rnf112 T A 11: 61,343,181 (GRCm39) R165W probably damaging Het
Rnf213 A G 11: 119,293,401 (GRCm39) T51A probably benign Het
Rnf220 A G 4: 117,130,481 (GRCm39) L293P probably damaging Het
Rock1 T C 18: 10,140,240 (GRCm39) D117G probably damaging Het
Rp1 A G 1: 4,414,851 (GRCm39) V2087A probably benign Het
Rpl7a A G 2: 26,801,563 (GRCm39) probably null Het
Serpinb6d A G 13: 33,851,615 (GRCm39) D124G probably damaging Het
Skor1 T G 9: 63,053,133 (GRCm39) T279P probably damaging Het
Son A T 16: 91,456,221 (GRCm39) E1656V probably damaging Het
Swap70 A G 7: 109,878,562 (GRCm39) K511E probably benign Het
Treh T C 9: 44,594,910 (GRCm39) V262A probably benign Het
Trpm4 A G 7: 44,954,370 (GRCm39) probably null Het
Ugt8a T C 3: 125,708,739 (GRCm39) I124V probably benign Het
Wdr53 T C 16: 32,075,473 (GRCm39) V226A probably damaging Het
Wdr64 G A 1: 175,554,037 (GRCm39) W189* probably null 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
Predicted Primers PCR Primer
(F):5'- ACAGATGAGTGTCAGGTCGCAAAC -3'
(R):5'- ATTAGCAGCTCAGCGCCAATCC -3'

Sequencing Primer
(F):5'- GTGTCAGGTCGCAAACCATAC -3'
(R):5'- CACTCCCTTGCCATGAAATG -3'
Posted On 2013-08-06