Incidental Mutation 'R0370:Kcnn3'
Institutional Source Beutler Lab
Gene Symbol Kcnn3
Ensembl Gene ENSMUSG00000000794
Gene Namepotassium intermediate/small conductance calcium-activated channel, subfamily N, member 3
Synonymssmall conductance calcium-activated potassium channel 3, SK3
MMRRC Submission 038576-MU
Accession Numbers
Is this an essential gene? Possibly non essential (E-score: 0.445) question?
Stock #R0370 (G1)
Quality Score130
Status Not validated
Chromosomal Location89520164-89675132 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to T at 89667092 bp
Amino Acid Change Asparagine to Isoleucine at position 637 (N637I)
Ref Sequence ENSEMBL: ENSMUSP00000000811 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000000811]
Predicted Effect probably damaging
Transcript: ENSMUST00000000811
AA Change: N637I

PolyPhen 2 Score 0.981 (Sensitivity: 0.75; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000000811
Gene: ENSMUSG00000000794
AA Change: N637I

low complexity region 30 96 N/A INTRINSIC
low complexity region 139 154 N/A INTRINSIC
low complexity region 213 224 N/A INTRINSIC
Pfam:SK_channel 270 383 3.1e-51 PFAM
Pfam:Ion_trans_2 462 548 2.2e-14 PFAM
CaMBD 562 638 1.04e-49 SMART
low complexity region 684 690 N/A INTRINSIC
low complexity region 718 731 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000124584
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.2%
  • 10x: 96.0%
  • 20x: 91.7%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Action potentials in vertebrate neurons are followed by an afterhyperpolarization (AHP) that may persist for several seconds and may have profound consequences for the firing pattern of the neuron. Each component of the AHP is kinetically distinct and is mediated by different calcium-activated potassium channels. This gene belongs to the KCNN family of potassium channels. It encodes an integral membrane protein that forms a voltage-independent calcium-activated channel, which is thought to regulate neuronal excitability by contributing to the slow component of synaptic AHP. This gene contains two CAG repeat regions in the coding sequence. It was thought that expansion of one or both of these repeats could lead to an increased susceptibility to schizophrenia or bipolar disorder, but studies indicate that this is probably not the case. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2011]
PHENOTYPE: Mice homozygous for an insertion of a tetracycline-regulated gene switch display no overt phenotype when expression is abolished by doxycycline treatment; in contrast, untreated homozygotes show abnormal respiratory responses to hypoxia, impaired parturition, and pregnancy-related premature death. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 41 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Afg3l1 T C 8: 123,501,554 S666P probably damaging Het
B3gntl1 A T 11: 121,624,154 W263R probably damaging Het
Carmil3 A G 14: 55,495,442 N270S possibly damaging Het
Ctdp1 T C 18: 80,449,354 E642G probably damaging Het
Cyp2b9 A T 7: 26,210,106 K433M probably damaging Het
Dcc A G 18: 71,587,985 V435A possibly damaging Het
Defa26 A T 8: 21,618,859 M87L probably benign Het
Dnah11 T A 12: 117,995,227 I2974L probably benign Het
Dnah3 T C 7: 120,086,720 D131G possibly damaging Het
Dock6 A T 9: 21,814,565 S1447R probably benign Het
Dtl G T 1: 191,575,350 N17K probably benign Het
Grid2 A G 6: 64,345,734 I573V possibly damaging Het
Hoxa9 T C 6: 52,225,704 E134G possibly damaging Het
Ktn1 T C 14: 47,664,075 F97L probably benign Het
Lmbrd2 T C 15: 9,165,852 I271T probably damaging Het
Lrp6 A C 6: 134,479,766 I845S probably damaging Het
Med13l T A 5: 118,741,826 N994K probably benign Het
Mrrf A T 2: 36,177,113 probably null Het
Mtmr1 G A X: 71,388,231 V125I probably damaging Het
Nol8 C T 13: 49,662,447 A677V possibly damaging Het
Olfr1047 A T 2: 86,228,713 V86D probably damaging Het
Olfr309 T A 7: 86,306,849 N88I probably benign Het
Olfr639 T G 7: 104,012,059 L214F probably damaging Het
Paxip1 C A 5: 27,760,086 V659F probably damaging Het
Pclo T C 5: 14,521,090 V163A probably damaging Het
Pkn3 T A 2: 30,087,172 H641Q probably damaging Het
Plekhg6 G A 6: 125,370,660 R444C probably damaging Het
Rfx2 T C 17: 56,799,308 E175G probably benign Het
Samd9l A C 6: 3,377,264 probably benign Het
Sec14l5 A T 16: 5,180,706 T537S probably damaging Het
Serpinb9d A G 13: 33,195,966 E96G probably damaging Het
Setd4 T C 16: 93,591,118 E160G probably damaging Het
Sf3b2 C T 19: 5,274,824 D845N probably damaging Het
Slc16a4 A G 3: 107,301,097 I308V possibly damaging Het
Slco2b1 T A 7: 99,690,437 N100Y probably damaging Het
Sptbn1 A T 11: 30,121,545 S1475R probably benign Het
Tecta T C 9: 42,366,804 D1136G probably benign Het
Tmem94 G C 11: 115,788,717 R273S probably damaging Het
Tns3 A G 11: 8,445,730 S1225P possibly damaging Het
Ugt2b36 A G 5: 87,091,975 Y184H probably benign Het
Vmn2r59 A T 7: 42,012,726 M555K probably benign Het
Other mutations in Kcnn3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL02263:Kcnn3 APN 3 89661218 missense possibly damaging 0.73
IGL02444:Kcnn3 APN 3 89652052 missense possibly damaging 0.50
IGL02500:Kcnn3 APN 3 89661112 splice site probably benign
IGL02814:Kcnn3 APN 3 89521175 missense possibly damaging 0.94
IGL02821:Kcnn3 APN 3 89662722 missense possibly damaging 0.84
IGL02821:Kcnn3 APN 3 89520974 missense possibly damaging 0.91
IGL02852:Kcnn3 APN 3 89609616 missense probably damaging 0.96
IGL02942:Kcnn3 APN 3 89652076 missense probably benign 0.00
IGL03118:Kcnn3 APN 3 89667161 missense probably damaging 1.00
R0015:Kcnn3 UTSW 3 89662773 missense probably damaging 1.00
R0015:Kcnn3 UTSW 3 89662773 missense probably damaging 1.00
R0032:Kcnn3 UTSW 3 89520665 small deletion probably benign
R0619:Kcnn3 UTSW 3 89652030 missense probably damaging 1.00
R1167:Kcnn3 UTSW 3 89564952 nonsense probably null
R1255:Kcnn3 UTSW 3 89652109 missense possibly damaging 0.84
R1643:Kcnn3 UTSW 3 89520497 missense unknown
R1733:Kcnn3 UTSW 3 89652090 missense probably benign 0.00
R1793:Kcnn3 UTSW 3 89609405 missense probably benign 0.20
R1827:Kcnn3 UTSW 3 89520994 missense possibly damaging 0.75
R1899:Kcnn3 UTSW 3 89520455 start gained probably benign
R2055:Kcnn3 UTSW 3 89521375 missense probably damaging 1.00
R2843:Kcnn3 UTSW 3 89520665 small deletion probably benign
R2922:Kcnn3 UTSW 3 89521022 missense probably damaging 1.00
R4078:Kcnn3 UTSW 3 89661188 missense possibly damaging 0.68
R4227:Kcnn3 UTSW 3 89521175 missense possibly damaging 0.94
R4604:Kcnn3 UTSW 3 89520420 start gained probably benign
R4814:Kcnn3 UTSW 3 89662724 missense probably damaging 1.00
R4822:Kcnn3 UTSW 3 89667289 missense possibly damaging 0.93
R5175:Kcnn3 UTSW 3 89609439 missense probably damaging 1.00
R5211:Kcnn3 UTSW 3 89521231 missense probably benign 0.04
R5438:Kcnn3 UTSW 3 89521298 missense probably damaging 1.00
R5496:Kcnn3 UTSW 3 89609490 missense possibly damaging 0.95
R6244:Kcnn3 UTSW 3 89645523 nonsense probably null
R7391:Kcnn3 UTSW 3 89609471 missense probably benign 0.34
Z1088:Kcnn3 UTSW 3 89667130 missense probably damaging 1.00
Predicted Primers PCR Primer

Sequencing Primer
Posted On2013-08-08