Incidental Mutation 'R6881:Kcnk2'
ID 536647
Institutional Source Beutler Lab
Gene Symbol Kcnk2
Ensembl Gene ENSMUSG00000037624
Gene Name potassium channel, subfamily K, member 2
Synonyms TREK-1
MMRRC Submission 045030-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.102) question?
Stock # R6881 (G1)
Quality Score 225.009
Status Validated
Chromosome 1
Chromosomal Location 188940127-189134470 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 188942187 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Methionine at position 346 (V346M)
Ref Sequence ENSEMBL: ENSMUSP00000141849 (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: V349M

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000078416
Gene: ENSMUSG00000037624
AA Change: V349M

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: V346M

PolyPhen 2 Score 0.004 (Sensitivity: 0.98; Specificity: 0.59)
SMART Domains Protein: ENSMUSP00000106545
Gene: ENSMUSG00000037624
AA Change: V346M

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: V346M

PolyPhen 2 Score 0.004 (Sensitivity: 0.98; Specificity: 0.59)
SMART Domains Protein: ENSMUSP00000141849
Gene: ENSMUSG00000037624
AA Change: V346M

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: V361M

PolyPhen 2 Score 0.002 (Sensitivity: 0.99; Specificity: 0.30)
SMART Domains Protein: ENSMUSP00000141891
Gene: ENSMUSG00000037624
AA Change: V361M

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
SMART Domains Protein: ENSMUSP00000142176
Gene: ENSMUSG00000037624

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: V357M

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000142026
Gene: ENSMUSG00000037624
AA Change: V357M

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: 100.0%
  • 3x: 99.9%
  • 10x: 99.4%
  • 20x: 98.2%
Validation Efficiency 98% (53/54)
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: 51 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4931406C07Rik A C 9: 15,202,061 (GRCm39) C187G possibly damaging Het
Abhd16a C T 17: 35,315,577 (GRCm39) T208I probably benign Het
Ahcyl1 A T 3: 107,575,425 (GRCm39) H425Q probably damaging Het
Ankrd22 T A 19: 34,126,782 (GRCm39) N16I probably damaging Het
Cc2d2b A G 19: 40,813,483 (GRCm39) E1321G probably damaging Het
Ccdc7b A G 8: 129,799,028 (GRCm39) E35G probably damaging Het
Chsy3 A G 18: 59,312,480 (GRCm39) I318V probably damaging Het
Clrn2 G A 5: 45,611,164 (GRCm39) W4* probably null Het
Cmip T C 8: 118,163,334 (GRCm39) I355T possibly damaging Het
Cmya5 C T 13: 93,226,800 (GRCm39) V2763M probably damaging Het
Cnnm2 T C 19: 46,865,658 (GRCm39) S749P probably damaging Het
Cyp1a1 G T 9: 57,608,002 (GRCm39) R210L possibly damaging Het
Dmxl1 G A 18: 50,068,372 (GRCm39) S2715N probably benign Het
Dync1h1 T C 12: 110,590,995 (GRCm39) L1021P probably damaging Het
Ecm2 C T 13: 49,683,818 (GRCm39) Q599* probably null Het
Galnt11 G T 5: 25,455,097 (GRCm39) K144N possibly damaging Het
Gm45861 A G 8: 28,025,279 (GRCm39) probably null Het
Kcnk18 T A 19: 59,208,390 (GRCm39) D75E probably benign Het
Klhl33 T A 14: 51,128,929 (GRCm39) M767L probably benign Het
Knl1 T C 2: 118,925,665 (GRCm39) I1898T possibly damaging Het
Lama5 G A 2: 179,833,455 (GRCm39) P1519L probably damaging Het
Lamp3 T C 16: 19,518,368 (GRCm39) T290A probably benign Het
Larp1 T A 11: 57,940,849 (GRCm39) D658E probably damaging Het
Macf1 T A 4: 123,326,246 (GRCm39) I3521F probably damaging Het
Med12l T C 3: 59,174,586 (GRCm39) S1835P probably benign Het
Mef2c C A 13: 83,741,061 (GRCm39) N73K probably damaging Het
Mtmr3 T C 11: 4,439,725 (GRCm39) S572G probably benign Het
Neto2 A T 8: 86,367,185 (GRCm39) S520T probably damaging Het
Or10ak16 A G 4: 118,750,304 (GRCm39) N8S probably damaging Het
Or1o4 A G 17: 37,591,200 (GRCm39) L37S probably benign Het
Or4c110 A T 2: 88,832,281 (GRCm39) M117K probably damaging Het
P3h2 G A 16: 25,811,495 (GRCm39) R243C probably damaging Het
Pld1 T C 3: 28,132,563 (GRCm39) S584P possibly damaging Het
Prkcz T C 4: 155,353,513 (GRCm39) N278S possibly damaging Het
Radil A G 5: 142,472,672 (GRCm39) S913P probably benign Het
Retreg2 A C 1: 75,123,083 (GRCm39) Q337P probably damaging Het
Sh3gl3 A G 7: 81,956,178 (GRCm39) E305G possibly damaging Het
Shank1 G T 7: 44,001,217 (GRCm39) D979Y unknown Het
Slc35a5 A T 16: 44,964,443 (GRCm39) N263K possibly damaging Het
Slc4a7 A T 14: 14,737,452 (GRCm38) M127L probably benign Het
Slc8a2 G A 7: 15,891,282 (GRCm39) G774E probably damaging Het
Smim45 C A 15: 82,143,786 (GRCm39) H3N possibly damaging Het
Snap91 A G 9: 86,655,646 (GRCm39) S847P possibly damaging Het
Stoml1 T C 9: 58,168,177 (GRCm39) L296P probably damaging Het
Tap1 G T 17: 34,407,008 (GRCm39) G52V probably damaging Het
Tent4b T C 8: 88,977,416 (GRCm39) V363A possibly damaging Het
Tnfrsf11b T C 15: 54,117,539 (GRCm39) R239G probably benign Het
Ttn T C 2: 76,536,846 (GRCm39) Y34993C probably damaging Het
Uchl1 T C 5: 66,841,065 (GRCm39) F165L probably damaging Het
Xrcc1 C T 7: 24,246,776 (GRCm39) Q15* probably null Het
Zkscan7 C G 9: 122,717,766 (GRCm39) Q54E 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
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
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'- TATGGCTCCACCTCAGACTC -3'
(R):5'- AGATGTAGCTCCCATGTTGATAG -3'

Sequencing Primer
(F):5'- CTTCCAAGAGAGGGCTACTTCATG -3'
(R):5'- GTAGCTCCCATGTTGATAGCTTCTC -3'
Posted On 2018-10-18