Incidental Mutation 'R7990:Kcnk2'
ID 651664
Institutional Source Beutler Lab
Gene Symbol Kcnk2
Ensembl Gene ENSMUSG00000037624
Gene Name potassium channel, subfamily K, member 2
Synonyms TREK-1
MMRRC Submission 046031-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.080) question?
Stock # R7990 (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 C at 188942102 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Arginine at position 389 (L389R)
Ref Sequence ENSEMBL: ENSMUSP00000141891 (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: L377R

PolyPhen 2 Score 0.986 (Sensitivity: 0.74; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000078416
Gene: ENSMUSG00000037624
AA Change: L377R

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: L374R

PolyPhen 2 Score 0.975 (Sensitivity: 0.76; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000106545
Gene: ENSMUSG00000037624
AA Change: L374R

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 damaging
Transcript: ENSMUST00000192723
AA Change: L374R

PolyPhen 2 Score 0.975 (Sensitivity: 0.76; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000141849
Gene: ENSMUSG00000037624
AA Change: L374R

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: L389R

PolyPhen 2 Score 0.986 (Sensitivity: 0.74; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000141891
Gene: ENSMUSG00000037624
AA Change: L389R

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 damaging
Transcript: ENSMUST00000194402
AA Change: L385R

PolyPhen 2 Score 0.986 (Sensitivity: 0.74; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000142026
Gene: ENSMUSG00000037624
AA Change: L385R

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
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.6%
  • 20x: 98.7%
Validation Efficiency 100% (50/50)
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: 52 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4933434E20Rik G A 3: 89,970,549 (GRCm39) V28I probably damaging Het
Abcd4 G T 12: 84,651,162 (GRCm39) probably null Het
Alg2 T C 4: 47,472,308 (GRCm39) T167A probably damaging Het
Asap1 T C 15: 64,044,586 (GRCm39) probably null Het
Atad5 T A 11: 80,024,079 (GRCm39) C1730* probably null Het
Atp8b1 T C 18: 64,671,748 (GRCm39) T1092A possibly damaging Het
C130050O18Rik A G 5: 139,400,672 (GRCm39) T242A probably benign Het
Ccdc88c A G 12: 100,934,244 (GRCm39) V211A probably damaging Het
Ccnl1 A G 3: 65,854,314 (GRCm39) S436P possibly damaging Het
Cgnl1 T C 9: 71,632,547 (GRCm39) E268G probably damaging Het
Clca4b T G 3: 144,634,103 (GRCm39) D104A probably damaging Het
Col6a3 T G 1: 90,709,577 (GRCm39) K2480T unknown Het
Cryba1 T C 11: 77,614,411 (GRCm39) T21A possibly damaging Het
Csn1s1 C T 5: 87,827,912 (GRCm39) A259V possibly damaging Het
Dap3 A C 3: 88,835,814 (GRCm39) Y206* probably null Het
Etnppl T C 3: 130,424,308 (GRCm39) I360T possibly damaging Het
Gal3st3 A T 19: 5,352,617 (GRCm39) M15L probably benign Het
Gdf5 A G 2: 155,783,749 (GRCm39) V401A probably damaging Het
Gm1110 A G 9: 26,792,137 (GRCm39) S628P possibly damaging Het
Gm9493 A T 19: 23,597,397 (GRCm39) I98F possibly damaging Het
Grin2a T C 16: 9,397,040 (GRCm39) K1016E possibly damaging Het
Hdac9 T C 12: 34,265,452 (GRCm39) N850D probably benign Het
Itsn2 C A 12: 4,685,629 (GRCm39) L466I unknown Het
Jkampl T C 6: 73,446,528 (GRCm39) Y7C probably damaging Het
Kcnj16 C A 11: 110,915,886 (GRCm39) R183S probably damaging Het
Kdm4c A C 4: 74,309,685 (GRCm39) K949N probably damaging Het
Kif3b G A 2: 153,159,383 (GRCm39) E395K probably benign Het
Ldlrad1 G A 4: 107,066,688 (GRCm39) A8T probably benign Het
Map3k1 A T 13: 111,892,696 (GRCm39) M853K probably benign Het
Metap1 T G 3: 138,186,526 (GRCm39) T68P probably benign Het
Mfsd11 T C 11: 116,750,323 (GRCm39) V114A possibly damaging Het
Mroh1 G A 15: 76,336,475 (GRCm39) R1566H probably damaging Het
Msh4 A T 3: 153,602,529 (GRCm39) M233K probably damaging Het
Ncor1 T G 11: 62,240,321 (GRCm39) probably null Het
Npl A T 1: 153,413,230 (GRCm39) V29D possibly damaging Het
Or1e29 C T 11: 73,667,497 (GRCm39) V219I probably benign Het
Osmr T C 15: 6,881,948 (GRCm39) I65M possibly damaging Het
Rabepk C T 2: 34,670,720 (GRCm39) V247I probably benign Het
Rere C T 4: 150,699,327 (GRCm39) P804S unknown Het
Rpgrip1 A T 14: 52,366,975 (GRCm39) Y265F possibly damaging Het
Slc10a1 T C 12: 81,000,554 (GRCm39) D315G probably benign Het
Smc5 A T 19: 23,213,246 (GRCm39) N555K probably benign Het
Spata17 T A 1: 186,872,592 (GRCm39) H26L unknown Het
Sphkap C T 1: 83,245,066 (GRCm39) D1518N probably damaging Het
Sult2a6 A T 7: 13,959,795 (GRCm39) M246K possibly damaging Het
Tmx2 A G 2: 84,506,480 (GRCm39) F71L probably damaging Het
Ush2a T A 1: 188,274,996 (GRCm39) L1823Q probably benign Het
Virma T A 4: 11,513,983 (GRCm39) D612E probably benign Het
Wdfy4 A T 14: 32,819,752 (GRCm39) L1484Q Het
Zan A G 5: 137,391,352 (GRCm39) S4711P unknown Het
Zdhhc1 A G 8: 106,203,001 (GRCm39) probably null Het
Zfp971 C T 2: 177,675,361 (GRCm39) T320I 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
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
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'- AGAGCCTAGAGAAGCCCTTC -3'
(R):5'- AGCTCCCATGTTGATAGCTTC -3'

Sequencing Primer
(F):5'- TAGAGAAGCCCTTCCCTATGG -3'
(R):5'- AGAGTTCAGAGCGCATGCC -3'
Posted On 2020-09-15