Incidental Mutation 'PIT4576001:Kcnma1'
ID556389
Institutional Source Beutler Lab
Gene Symbol Kcnma1
Ensembl Gene ENSMUSG00000063142
Gene Namepotassium large conductance calcium-activated channel, subfamily M, alpha member 1
SynonymsmSlo1, MaxiK, Slo1, 5730414M22Rik, BK channel alpha subunit, BKCa, Slo
Accession Numbers
Is this an essential gene? Probably essential (E-score: 0.846) question?
Stock #PIT4576001 (G1)
Quality Score225.009
Status Not validated
Chromosome14
Chromosomal Location23289431-24014491 bp(-) (GRCm38)
Type of Mutationsplice site (5 bp from exon)
DNA Base Change (assembly) C to T at 23309035 bp
ZygosityHeterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000152959 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000065788] [ENSMUST00000074983] [ENSMUST00000100831] [ENSMUST00000112423] [ENSMUST00000145596] [ENSMUST00000163322] [ENSMUST00000172099] [ENSMUST00000177634] [ENSMUST00000179097] [ENSMUST00000179836] [ENSMUST00000188210] [ENSMUST00000188285] [ENSMUST00000188991] [ENSMUST00000190044] [ENSMUST00000190985] [ENSMUST00000223655] [ENSMUST00000223727] [ENSMUST00000223749] [ENSMUST00000224077] [ENSMUST00000224232] [ENSMUST00000224285] [ENSMUST00000224468] [ENSMUST00000224787] [ENSMUST00000224812] [ENSMUST00000225315] [ENSMUST00000225431] [ENSMUST00000225471] [ENSMUST00000225556] [ENSMUST00000225794]
Predicted Effect probably null
Transcript: ENSMUST00000065788
SMART Domains Protein: ENSMUSP00000065293
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 20 31 N/A INTRINSIC
transmembrane domain 54 73 N/A INTRINSIC
Pfam:Ion_trans 91 262 2.2e-18 PFAM
Pfam:Ion_trans_2 180 268 5.7e-16 PFAM
Pfam:TrkA_N 314 413 7.5e-7 PFAM
Pfam:BK_channel_a 411 509 6.4e-31 PFAM
low complexity region 835 843 N/A INTRINSIC
low complexity region 891 902 N/A INTRINSIC
low complexity region 1005 1031 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000074983
SMART Domains Protein: ENSMUSP00000074511
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 20 31 N/A INTRINSIC
transmembrane domain 54 73 N/A INTRINSIC
Pfam:Ion_trans 91 262 2.2e-18 PFAM
Pfam:Ion_trans_2 180 268 5.7e-16 PFAM
Pfam:TrkA_N 314 413 7.5e-7 PFAM
Pfam:BK_channel_a 411 509 6.4e-31 PFAM
low complexity region 894 902 N/A INTRINSIC
low complexity region 950 961 N/A INTRINSIC
low complexity region 1064 1090 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000100831
AA Change: V1081I

PolyPhen 2 Score 0.004 (Sensitivity: 0.98; Specificity: 0.59)
SMART Domains Protein: ENSMUSP00000098393
Gene: ENSMUSG00000063142
AA Change: V1081I

DomainStartEndE-ValueType
low complexity region 20 31 N/A INTRINSIC
transmembrane domain 54 73 N/A INTRINSIC
Pfam:Ion_trans 91 262 2.1e-18 PFAM
Pfam:Ion_trans_2 180 268 5.5e-16 PFAM
Pfam:TrkA_N 314 413 7.3e-7 PFAM
Pfam:BK_channel_a 411 509 6.2e-31 PFAM
low complexity region 865 873 N/A INTRINSIC
low complexity region 921 932 N/A INTRINSIC
low complexity region 1035 1061 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000112423
SMART Domains Protein: ENSMUSP00000108042
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
transmembrane domain 2 19 N/A INTRINSIC
Pfam:Ion_trans 37 208 2.1e-18 PFAM
Pfam:Ion_trans_2 126 214 5.3e-16 PFAM
Pfam:TrkA_N 260 359 7e-7 PFAM
Pfam:BK_channel_a 357 455 6e-31 PFAM
low complexity region 781 789 N/A INTRINSIC
low complexity region 837 848 N/A INTRINSIC
low complexity region 951 977 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000145596
Predicted Effect probably benign
Transcript: ENSMUST00000163322
AA Change: V1048I

PolyPhen 2 Score 0.012 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000128553
Gene: ENSMUSG00000063142
AA Change: V1048I

DomainStartEndE-ValueType
low complexity region 20 31 N/A INTRINSIC
transmembrane domain 54 73 N/A INTRINSIC
Pfam:Ion_trans 91 262 3.2e-18 PFAM
Pfam:Ion_trans_2 180 268 1.1e-15 PFAM
Pfam:TrkA_N 314 413 7e-7 PFAM
Pfam:BK_channel_a 411 509 6e-31 PFAM
low complexity region 832 840 N/A INTRINSIC
low complexity region 888 899 N/A INTRINSIC
low complexity region 1002 1028 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000172099
SMART Domains Protein: ENSMUSP00000132204
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 20 31 N/A INTRINSIC
transmembrane domain 54 73 N/A INTRINSIC
Pfam:Ion_trans 91 262 2.2e-18 PFAM
Pfam:Ion_trans_2 180 268 5.7e-16 PFAM
Pfam:TrkA_N 314 413 7.6e-7 PFAM
Pfam:BK_channel_a 411 509 6.5e-31 PFAM
low complexity region 897 905 N/A INTRINSIC
low complexity region 953 964 N/A INTRINSIC
low complexity region 1067 1093 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000177634
SMART Domains Protein: ENSMUSP00000136447
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 20 31 N/A INTRINSIC
Pfam:Ion_trans 53 272 4.9e-19 PFAM
Pfam:Ion_trans_2 180 267 1.2e-15 PFAM
Pfam:BK_channel_a 413 508 1.2e-35 PFAM
low complexity region 862 870 N/A INTRINSIC
low complexity region 918 929 N/A INTRINSIC
low complexity region 1032 1058 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000179097
SMART Domains Protein: ENSMUSP00000136568
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 20 31 N/A INTRINSIC
transmembrane domain 54 73 N/A INTRINSIC
Pfam:Ion_trans 91 262 4.6e-18 PFAM
Pfam:Ion_trans_2 180 268 1e-15 PFAM
Pfam:TrkA_N 314 413 1.1e-7 PFAM
Pfam:BK_channel_a 411 509 3.2e-31 PFAM
low complexity region 859 867 N/A INTRINSIC
low complexity region 915 926 N/A INTRINSIC
low complexity region 1029 1055 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000179836
SMART Domains Protein: ENSMUSP00000137141
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 20 31 N/A INTRINSIC
transmembrane domain 54 73 N/A INTRINSIC
Pfam:Ion_trans 91 262 4.2e-18 PFAM
Pfam:Ion_trans_2 180 268 9.5e-16 PFAM
Pfam:BK_channel_a 389 457 2.4e-15 PFAM
low complexity region 838 846 N/A INTRINSIC
low complexity region 894 905 N/A INTRINSIC
low complexity region 1008 1034 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000188210
SMART Domains Protein: ENSMUSP00000141069
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 4 23 N/A INTRINSIC
transmembrane domain 86 108 N/A INTRINSIC
low complexity region 145 156 N/A INTRINSIC
transmembrane domain 179 198 N/A INTRINSIC
Pfam:Ion_trans 216 387 1.3e-18 PFAM
Pfam:Ion_trans_2 305 393 5.2e-16 PFAM
Pfam:TrkA_N 439 538 7.8e-7 PFAM
Pfam:BK_channel_a 536 634 5e-31 PFAM
low complexity region 988 996 N/A INTRINSIC
low complexity region 1044 1055 N/A INTRINSIC
low complexity region 1158 1184 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000188285
SMART Domains Protein: ENSMUSP00000140275
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 4 23 N/A INTRINSIC
transmembrane domain 86 108 N/A INTRINSIC
low complexity region 145 156 N/A INTRINSIC
transmembrane domain 179 198 N/A INTRINSIC
Pfam:Ion_trans 216 387 1.3e-18 PFAM
Pfam:Ion_trans_2 305 393 5.4e-16 PFAM
Pfam:TrkA_N 439 538 8e-7 PFAM
Pfam:BK_channel_a 536 634 5.2e-31 PFAM
low complexity region 1019 1027 N/A INTRINSIC
low complexity region 1075 1086 N/A INTRINSIC
low complexity region 1189 1215 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000188991
SMART Domains Protein: ENSMUSP00000140751
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 4 23 N/A INTRINSIC
transmembrane domain 86 108 N/A INTRINSIC
low complexity region 145 156 N/A INTRINSIC
transmembrane domain 179 198 N/A INTRINSIC
Pfam:Ion_trans 216 387 3.3e-18 PFAM
Pfam:Ion_trans_2 305 393 1.1e-15 PFAM
Pfam:TrkA_N 439 538 3.7e-7 PFAM
Pfam:BK_channel_a 536 634 3.4e-31 PFAM
low complexity region 1015 1023 N/A INTRINSIC
low complexity region 1071 1082 N/A INTRINSIC
low complexity region 1185 1211 N/A INTRINSIC
Predicted Effect probably null
Transcript: ENSMUST00000190044
SMART Domains Protein: ENSMUSP00000140033
Gene: ENSMUSG00000063142

DomainStartEndE-ValueType
low complexity region 4 23 N/A INTRINSIC
transmembrane domain 86 108 N/A INTRINSIC
low complexity region 145 156 N/A INTRINSIC
transmembrane domain 179 198 N/A INTRINSIC
Pfam:Ion_trans 216 387 1.3e-18 PFAM
Pfam:Ion_trans_2 305 393 5.1e-16 PFAM
Pfam:TrkA_N 439 538 7.5e-7 PFAM
Pfam:BK_channel_a 536 634 4.9e-31 PFAM
low complexity region 957 965 N/A INTRINSIC
low complexity region 1013 1024 N/A INTRINSIC
low complexity region 1127 1153 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000190985
Predicted Effect probably null
Transcript: ENSMUST00000223655
Predicted Effect probably null
Transcript: ENSMUST00000223727
Predicted Effect probably benign
Transcript: ENSMUST00000223749
AA Change: V1108I

PolyPhen 2 Score 0.021 (Sensitivity: 0.95; Specificity: 0.80)
Predicted Effect probably null
Transcript: ENSMUST00000224025
Predicted Effect probably null
Transcript: ENSMUST00000224077
Predicted Effect probably benign
Transcript: ENSMUST00000224232
AA Change: V1166I

PolyPhen 2 Score 0.012 (Sensitivity: 0.96; Specificity: 0.78)
Predicted Effect probably benign
Transcript: ENSMUST00000224285
AA Change: V1108I

PolyPhen 2 Score 0.021 (Sensitivity: 0.95; Specificity: 0.80)
Predicted Effect probably null
Transcript: ENSMUST00000224468
Predicted Effect probably null
Transcript: ENSMUST00000224787
Predicted Effect probably benign
Transcript: ENSMUST00000224812
AA Change: V1141I

PolyPhen 2 Score 0.006 (Sensitivity: 0.97; Specificity: 0.75)
Predicted Effect probably null
Transcript: ENSMUST00000225315
Predicted Effect probably null
Transcript: ENSMUST00000225431
Predicted Effect probably benign
Transcript: ENSMUST00000225471
AA Change: V1137I

PolyPhen 2 Score 0.006 (Sensitivity: 0.97; Specificity: 0.75)
Predicted Effect probably null
Transcript: ENSMUST00000225556
Predicted Effect probably benign
Transcript: ENSMUST00000225794
Coding Region Coverage
  • 1x: 93.1%
  • 3x: 90.8%
  • 10x: 85.3%
  • 20x: 72.8%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] MaxiK channels are large conductance, voltage and calcium-sensitive potassium channels which are fundamental to the control of smooth muscle tone and neuronal excitability. MaxiK channels can be formed by 2 subunits: the pore-forming alpha subunit, which is the product of this gene, and the modulatory beta subunit. Intracellular calcium regulates the physical association between the alpha and beta subunits. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygous inactivation of this gene leads to cerebellar ataxia, Purkinje cell dysfunction, uneven gait patterns, bladder hyperactivity, urinary incontinence, abnormal colonic K+ secretion, and hearing impairment. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 38 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930544G11Rik T C 6: 65,952,999 S73P probably damaging Het
5730596B20Rik G T 6: 52,179,469 V172F unknown Het
Brms1 A G 19: 5,046,201 K69E probably damaging Het
Calr4 A C 4: 109,235,856 Q44H possibly damaging Het
Dnmt1 G A 9: 20,911,775 T1242I probably benign Het
Dyrk3 A G 1: 131,130,181 V85A probably damaging Het
Eif2a T C 3: 58,545,553 Y250H probably damaging Het
Esco1 T C 18: 10,572,093 E749G probably damaging Het
Fat1 A G 8: 45,024,645 I2243V probably damaging Het
Gh A T 11: 106,300,833 F128I possibly damaging Het
Gm17669 TAA TAAA 18: 67,562,749 probably null Het
Gm5415 T C 1: 32,546,472 E119G probably damaging Het
Gtpbp4 A G 13: 8,991,727 Y150H probably damaging Het
Hist1h2ak C A 13: 21,753,611 D73Y probably damaging Het
Itga8 A G 2: 12,230,092 S452P probably benign Het
Macf1 T C 4: 123,473,321 E2549G probably benign Het
Mindy1 C T 3: 95,288,069 A41V probably benign Het
Mypn T A 10: 63,120,071 K1201M probably damaging Het
Ncor1 A G 11: 62,333,717 S906P probably damaging Het
Npy1r T C 8: 66,704,222 V98A probably benign Het
Pate2 A G 9: 35,670,593 Y61C probably damaging Het
Pfdn2 A G 1: 171,345,742 S11G unknown Het
Prdm1 T C 10: 44,458,508 M1V probably null Het
Prelp A G 1: 133,915,165 S81P possibly damaging Het
Prss12 T C 3: 123,487,115 V483A probably damaging Het
Prss43 G C 9: 110,827,887 V154L probably damaging Het
Ptpru G A 4: 131,802,544 R618* probably null Het
Rpa1 A G 11: 75,313,158 S288P probably damaging Het
Siglec1 A G 2: 131,078,161 F817L probably damaging Het
Skint6 T A 4: 113,053,367 S545C possibly damaging Het
Slit1 A T 19: 41,624,549 V844D possibly damaging Het
Suclg2 G T 6: 95,587,018 D195E possibly damaging Het
Tln1 G T 4: 43,539,998 A1537D probably damaging Het
Trpv2 A G 11: 62,581,201 D73G probably damaging Het
Ucp3 T C 7: 100,480,251 S98P probably benign Het
Usp19 T A 9: 108,492,732 probably null Het
Vmn2r112 T C 17: 22,614,931 F527L probably benign Het
Vmn2r93 T C 17: 18,313,211 V459A probably benign Het
Other mutations in Kcnma1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01318:Kcnma1 APN 14 23314322 splice site probably benign
IGL01520:Kcnma1 APN 14 23501143 missense possibly damaging 0.94
IGL01977:Kcnma1 APN 14 23530299 splice site probably benign
IGL02140:Kcnma1 APN 14 23309045 missense probably damaging 1.00
IGL02165:Kcnma1 APN 14 23336967 missense possibly damaging 0.93
IGL02186:Kcnma1 APN 14 23526813 missense probably benign 0.28
IGL02268:Kcnma1 APN 14 23543076 missense probably damaging 1.00
IGL02353:Kcnma1 APN 14 23591613 missense probably damaging 1.00
IGL02360:Kcnma1 APN 14 23591613 missense probably damaging 1.00
IGL02491:Kcnma1 APN 14 23311689 missense probably damaging 1.00
IGL02552:Kcnma1 APN 14 23386259 critical splice donor site probably null
IGL02625:Kcnma1 APN 14 23363832 missense probably damaging 1.00
IGL02677:Kcnma1 APN 14 23463156 missense probably damaging 1.00
IGL02706:Kcnma1 APN 14 23309154 missense probably damaging 1.00
PIT4495001:Kcnma1 UTSW 14 23425597 missense probably benign 0.00
PIT4514001:Kcnma1 UTSW 14 23309035 splice site probably null
R0071:Kcnma1 UTSW 14 23526767 missense probably damaging 1.00
R0071:Kcnma1 UTSW 14 23526767 missense probably damaging 1.00
R0115:Kcnma1 UTSW 14 23314175 missense probably damaging 1.00
R0172:Kcnma1 UTSW 14 23803166 missense probably damaging 1.00
R0178:Kcnma1 UTSW 14 23526767 missense probably damaging 1.00
R0183:Kcnma1 UTSW 14 23508052 missense probably damaging 1.00
R0240:Kcnma1 UTSW 14 23494579 missense probably damaging 1.00
R0240:Kcnma1 UTSW 14 23494579 missense probably damaging 1.00
R0328:Kcnma1 UTSW 14 23373197 missense probably damaging 1.00
R0501:Kcnma1 UTSW 14 23311716 missense possibly damaging 0.80
R0631:Kcnma1 UTSW 14 23509784 splice site probably benign
R0668:Kcnma1 UTSW 14 23367495 missense probably damaging 1.00
R0811:Kcnma1 UTSW 14 23300018 missense probably damaging 0.96
R0812:Kcnma1 UTSW 14 23300018 missense probably damaging 0.96
R1080:Kcnma1 UTSW 14 23494607 missense probably damaging 1.00
R1419:Kcnma1 UTSW 14 23367642 missense probably damaging 0.99
R1446:Kcnma1 UTSW 14 23311724 missense probably damaging 1.00
R1454:Kcnma1 UTSW 14 23463200 missense probably damaging 1.00
R1651:Kcnma1 UTSW 14 23314194 missense probably damaging 1.00
R1826:Kcnma1 UTSW 14 23330929 missense probably damaging 1.00
R1827:Kcnma1 UTSW 14 23330929 missense probably damaging 1.00
R1828:Kcnma1 UTSW 14 23330929 missense probably damaging 1.00
R1864:Kcnma1 UTSW 14 23803162 missense probably damaging 1.00
R2002:Kcnma1 UTSW 14 23337029 missense probably damaging 0.99
R2140:Kcnma1 UTSW 14 23314220 missense probably damaging 1.00
R2278:Kcnma1 UTSW 14 23543083 nonsense probably null
R2866:Kcnma1 UTSW 14 23373207 missense probably benign 0.16
R2867:Kcnma1 UTSW 14 23373207 missense probably benign 0.16
R2867:Kcnma1 UTSW 14 23373207 missense probably benign 0.16
R2900:Kcnma1 UTSW 14 23803160 missense probably damaging 1.00
R3820:Kcnma1 UTSW 14 23299938 missense possibly damaging 0.66
R3821:Kcnma1 UTSW 14 23367611 missense probably damaging 1.00
R3901:Kcnma1 UTSW 14 23505255 missense probably damaging 0.98
R3975:Kcnma1 UTSW 14 24003747 critical splice donor site probably null
R3976:Kcnma1 UTSW 14 24003747 critical splice donor site probably null
R4352:Kcnma1 UTSW 14 23311652 missense probably damaging 1.00
R4517:Kcnma1 UTSW 14 23337029 missense probably damaging 1.00
R4598:Kcnma1 UTSW 14 23803160 missense probably damaging 1.00
R4604:Kcnma1 UTSW 14 23309038 critical splice donor site probably null
R4743:Kcnma1 UTSW 14 23803202 missense probably damaging 1.00
R4754:Kcnma1 UTSW 14 23363836 missense probably damaging 0.96
R4908:Kcnma1 UTSW 14 23309152 missense probably damaging 0.99
R4960:Kcnma1 UTSW 14 24004118 intron probably benign
R5175:Kcnma1 UTSW 14 23336038 critical splice donor site probably null
R5218:Kcnma1 UTSW 14 23463185 missense probably damaging 0.96
R5435:Kcnma1 UTSW 14 23528404 nonsense probably null
R5705:Kcnma1 UTSW 14 24003771 missense possibly damaging 0.73
R5746:Kcnma1 UTSW 14 23494567 missense probably damaging 1.00
R5780:Kcnma1 UTSW 14 23386351 nonsense probably null
R5793:Kcnma1 UTSW 14 23309035 splice site probably null
R6039:Kcnma1 UTSW 14 23309037 missense probably benign 0.42
R6039:Kcnma1 UTSW 14 23309037 missense probably benign 0.42
R6133:Kcnma1 UTSW 14 24003868 missense probably damaging 0.98
R6271:Kcnma1 UTSW 14 23509889 missense probably damaging 1.00
R6490:Kcnma1 UTSW 14 23336097 missense possibly damaging 0.46
R6704:Kcnma1 UTSW 14 24002814 nonsense probably null
R6822:Kcnma1 UTSW 14 24003744 splice site probably null
R6855:Kcnma1 UTSW 14 23367611 missense probably damaging 1.00
R6920:Kcnma1 UTSW 14 23526534 critical splice donor site probably null
R7017:Kcnma1 UTSW 14 23494643 missense possibly damaging 0.79
R7081:Kcnma1 UTSW 14 23300018 missense probably damaging 0.96
R7113:Kcnma1 UTSW 14 23463156 missense probably damaging 1.00
R7131:Kcnma1 UTSW 14 23367494 missense probably damaging 1.00
R7172:Kcnma1 UTSW 14 23526623 missense probably damaging 1.00
R7207:Kcnma1 UTSW 14 23309015 makesense probably null
R7308:Kcnma1 UTSW 14 23330935 missense probably damaging 0.99
R7371:Kcnma1 UTSW 14 23494570 missense possibly damaging 0.94
R7404:Kcnma1 UTSW 14 24002834 missense unknown
Predicted Primers PCR Primer
(F):5'- ATTTGCTGTTGCGCTCAAGG -3'
(R):5'- CTGATGCAGTTTGACCACAACG -3'

Sequencing Primer
(F):5'- GCACACTATCATACATATGCAAAATG -3'
(R):5'- AGTTTGACCACAACGCTGGC -3'
Posted On2019-06-07