Incidental Mutation 'R6240:Kcnk2'
ID 505153
Institutional Source Beutler Lab
Gene Symbol Kcnk2
Ensembl Gene ENSMUSG00000037624
Gene Name potassium channel, subfamily K, member 2
Synonyms TREK-1
MMRRC Submission 044364-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.102) question?
Stock # R6240 (G1)
Quality Score 225.009
Status Validated
Chromosome 1
Chromosomal Location 188940127-189134470 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 188975179 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tryptophan to Arginine at position 286 (W286R)
Ref Sequence ENSEMBL: ENSMUSP00000142026 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000079451] [ENSMUST00000110920] [ENSMUST00000180044] [ENSMUST00000192723] [ENSMUST00000193319] [ENSMUST00000194172] [ENSMUST00000194402]
AlphaFold P97438
Predicted Effect probably damaging
Transcript: ENSMUST00000079451
AA Change: W278R

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000078416
Gene: ENSMUSG00000037624
AA Change: W278R

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 damaging
Transcript: ENSMUST00000110920
AA Change: W275R

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000106545
Gene: ENSMUSG00000037624
AA Change: W275R

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 noncoding transcript
Transcript: ENSMUST00000192529
Predicted Effect probably damaging
Transcript: ENSMUST00000192723
AA Change: W275R

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000141849
Gene: ENSMUSG00000037624
AA Change: W275R

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 damaging
Transcript: ENSMUST00000193319
AA Change: W290R

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000141891
Gene: ENSMUSG00000037624
AA Change: W290R

DomainStartEndE-ValueType
Pfam:Ion_trans_2 117 198 2.5e-21 PFAM
Pfam:Ion_trans_2 226 313 3.7e-21 PFAM
Predicted Effect silent
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 damaging
Transcript: ENSMUST00000194402
AA Change: W286R

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000142026
Gene: ENSMUSG00000037624
AA Change: W286R

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 0.4677 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.7%
  • 10x: 98.4%
  • 20x: 95.5%
Validation Efficiency 98% (62/63)
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: 62 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930578I06Rik C A 14: 64,223,701 (GRCm39) R25L probably damaging Het
Adamts1 G A 16: 85,599,045 (GRCm39) S185L probably benign Het
Adamts12 A T 15: 11,286,044 (GRCm39) D751V probably benign Het
Adgrg3 A G 8: 95,766,544 (GRCm39) D405G probably benign Het
Ahi1 A G 10: 20,852,980 (GRCm39) D516G probably damaging Het
Ahnak A T 19: 8,990,947 (GRCm39) D4077V probably damaging Het
Arhgef18 G A 8: 3,489,658 (GRCm39) R330Q probably damaging Het
Arid1a A G 4: 133,407,997 (GRCm39) V2170A unknown Het
Asxl3 C T 18: 22,598,565 (GRCm39) L227F probably damaging Het
B3glct A G 5: 149,650,253 (GRCm39) I119V probably benign Het
Brd10 A T 19: 29,694,640 (GRCm39) S1618T probably benign Het
Cad T A 5: 31,230,322 (GRCm39) M1512K probably benign Het
Cdc25a A G 9: 109,713,226 (GRCm39) T172A probably damaging Het
Cdh18 A G 15: 23,227,022 (GRCm39) D161G possibly damaging Het
Clmp A G 9: 40,693,707 (GRCm39) N308S probably damaging Het
Dlg5 A T 14: 24,199,596 (GRCm39) probably null Het
Dscam G A 16: 96,420,702 (GRCm39) T1728M probably damaging Het
E4f1 A G 17: 24,663,556 (GRCm39) S524P possibly damaging Het
Epha5 G C 5: 84,265,438 (GRCm39) A452G probably benign Het
Fzd3 T C 14: 65,447,304 (GRCm39) T542A probably damaging Het
Glyctk A T 9: 106,033,461 (GRCm39) probably null Het
Gm10382 G A 5: 125,466,660 (GRCm39) probably benign Het
Hnmt T A 2: 23,904,281 (GRCm39) M127L probably benign Het
Hoxc10 T A 15: 102,879,265 (GRCm39) W262R probably damaging Het
Icam5 T A 9: 20,944,454 (GRCm39) W52R possibly damaging Het
Jazf1 A T 6: 52,754,537 (GRCm39) C180S probably damaging Het
Kcnmb2 C T 3: 32,236,045 (GRCm39) S98F probably damaging Het
Mob3a C G 10: 80,525,698 (GRCm39) E204D possibly damaging Het
Morc3 C G 16: 93,659,572 (GRCm39) H459D probably damaging Het
Mroh2b A T 15: 4,964,126 (GRCm39) N876I probably benign Het
Myo16 A T 8: 10,420,930 (GRCm39) T257S probably damaging Het
Nat1 A T 8: 67,944,354 (GRCm39) R243S possibly damaging Het
Nudt9 T C 5: 104,194,955 (GRCm39) V17A probably benign Het
Or13p8 A G 4: 118,583,668 (GRCm39) S75G probably benign Het
Or4c111 A G 2: 88,843,970 (GRCm39) I146T probably benign Het
Or4c11c A G 2: 88,661,707 (GRCm39) D82G probably benign Het
Or4m1 A G 14: 50,558,043 (GRCm39) V83A probably benign Het
Or6c70 C A 10: 129,710,546 (GRCm39) V27L probably benign Het
Pcdh7 T C 5: 57,878,704 (GRCm39) L753P probably damaging Het
Pcf11 T A 7: 92,295,710 (GRCm39) E1446D probably damaging Het
Pepd A G 7: 34,721,176 (GRCm39) I267V probably benign Het
Plk2 T A 13: 110,536,008 (GRCm39) Y571N probably damaging Het
Plk2 T A 13: 110,536,568 (GRCm39) V620E probably damaging Het
Prag1 T C 8: 36,570,506 (GRCm39) L363P probably benign Het
Psmd3 A G 11: 98,584,479 (GRCm39) T387A probably damaging Het
Ptgs1 G A 2: 36,127,297 (GRCm39) C61Y probably damaging Het
Rab18 T C 18: 6,784,635 (GRCm39) Y109H probably benign Het
Robo2 G A 16: 73,779,027 (GRCm39) P358L probably damaging Het
Smarcc2 C T 10: 128,323,893 (GRCm39) probably benign Het
Spata31e4 G A 13: 50,855,453 (GRCm39) D364N probably damaging Het
Srgap1 A G 10: 121,883,061 (GRCm39) I13T probably benign Het
Tcf12 T A 9: 71,851,298 (GRCm39) K110* probably null Het
Tdrd1 T C 19: 56,829,767 (GRCm39) S214P probably benign Het
Tdrd3 T A 14: 87,743,322 (GRCm39) N417K probably damaging Het
Tmem255b A G 8: 13,504,216 (GRCm39) Y136C probably damaging Het
Tmem63c A T 12: 87,123,179 (GRCm39) I448F possibly damaging Het
Tnpo1 T C 13: 99,000,337 (GRCm39) I335M probably damaging Het
Vmn1r1 T C 1: 181,985,186 (GRCm39) T160A probably damaging Het
Vmn1r203 A G 13: 22,708,899 (GRCm39) N227D possibly damaging Het
Vmn2r6 T A 3: 64,464,226 (GRCm39) S203C probably damaging Het
Zfp628 A G 7: 4,922,848 (GRCm39) T357A possibly damaging Het
Zfp872 A G 9: 22,111,180 (GRCm39) K220E probably 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
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'- AACAGACCTCACTTTGTGCC -3'
(R):5'- TTCGGTGTGAAGGAAGAGCC -3'

Sequencing Primer
(F):5'- AGACCTCACTTTGTGCCATTCAAC -3'
(R):5'- AAGAGCCTGGGTCTGTGGAG -3'
Posted On 2018-02-28