Incidental Mutation 'R0077:Kcnh2'
ID19465
Institutional Source Beutler Lab
Gene Symbol Kcnh2
Ensembl Gene ENSMUSG00000038319
Gene Namepotassium voltage-gated channel, subfamily H (eag-related), member 2
Synonymsmerg1a, M-erg, Lqt2, ERG1, ether a go-go related, merg1b, LQT
MMRRC Submission 038364-MU
Accession Numbers
Is this an essential gene? Possibly essential (E-score: 0.543) question?
Stock #R0077 (G1)
Quality Score225
Status Validated
Chromosome5
Chromosomal Location24319589-24351604 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 24322702 bp
ZygosityHeterozygous
Amino Acid Change Asparagine to Isoleucine at position 884 (N884I)
Ref Sequence ENSEMBL: ENSMUSP00000047705 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000036092] [ENSMUST00000115098]
Predicted Effect probably benign
Transcript: ENSMUST00000036092
AA Change: N884I

PolyPhen 2 Score 0.112 (Sensitivity: 0.93; Specificity: 0.86)
SMART Domains Protein: ENSMUSP00000047705
Gene: ENSMUSG00000038319
AA Change: N884I

DomainStartEndE-ValueType
PAS 13 87 9.54e0 SMART
PAC 93 135 1.31e-5 SMART
low complexity region 194 199 N/A INTRINSIC
Pfam:Ion_trans 409 673 7.8e-38 PFAM
Pfam:Ion_trans_2 600 667 3.2e-13 PFAM
cNMP 744 862 1.15e-24 SMART
low complexity region 885 896 N/A INTRINSIC
low complexity region 925 956 N/A INTRINSIC
low complexity region 965 982 N/A INTRINSIC
coiled coil region 1035 1069 N/A INTRINSIC
low complexity region 1082 1108 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000115098
AA Change: N542I

PolyPhen 2 Score 0.071 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000110750
Gene: ENSMUSG00000038319
AA Change: N542I

DomainStartEndE-ValueType
Pfam:Ion_trans 114 319 1.4e-22 PFAM
Pfam:Ion_trans_2 257 325 2.9e-14 PFAM
cNMP 402 520 1.15e-24 SMART
low complexity region 543 554 N/A INTRINSIC
low complexity region 583 614 N/A INTRINSIC
low complexity region 623 640 N/A INTRINSIC
coiled coil region 693 727 N/A INTRINSIC
low complexity region 740 766 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000126791
Predicted Effect noncoding transcript
Transcript: ENSMUST00000129246
Predicted Effect noncoding transcript
Transcript: ENSMUST00000142197
Meta Mutation Damage Score 0.1488 question?
Coding Region Coverage
  • 1x: 98.9%
  • 3x: 97.9%
  • 10x: 95.4%
  • 20x: 90.5%
Validation Efficiency 83% (159/192)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a voltage-activated potassium channel belonging to the eag family. It shares sequence similarity with the Drosophila ether-a-go-go (eag) gene. Mutations in this gene can cause long QT syndrome type 2 (LQT2). Transcript variants encoding distinct isoforms have been identified. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mutant mice which maintain expression of the A isoform and lack expression of the B isoform are predisposed to episodic sinus bradycardia. Mice with mutations causing defects in both isoforms are embryonic lethal with defects in cardiac development and function. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 73 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adgrl3 T C 5: 81,771,685 probably benign Het
Adgrl4 A G 3: 151,517,781 I624V probably damaging Het
AI661453 A G 17: 47,469,362 probably benign Het
Alg12 C T 15: 88,815,978 E60K probably damaging Het
Angel2 A T 1: 190,933,087 N72Y possibly damaging Het
Ank1 C A 8: 23,140,167 P81Q probably damaging Het
Atp6v1c2 A T 12: 17,321,612 D61E probably damaging Het
Bpi T A 2: 158,261,334 M83K probably damaging Het
Capn7 A G 14: 31,368,115 I642V probably benign Het
Ccdc134 T C 15: 82,131,737 probably benign Het
Ccr3 C T 9: 124,029,024 T132I probably damaging Het
Cfap65 C A 1: 74,931,918 W80C probably damaging Het
Chaf1a T A 17: 56,047,384 I218K unknown Het
Ddx23 A G 15: 98,656,600 probably null Het
Dmkn A G 7: 30,765,294 S231G probably benign Het
Ep300 T C 15: 81,641,313 I1446T unknown Het
Fmnl1 T C 11: 103,189,969 F318S probably damaging Het
Grik5 A T 7: 25,023,380 V497E probably damaging Het
Gtf2ird2 T C 5: 134,214,083 Y380H probably damaging Het
Hecw2 C T 1: 53,868,831 probably benign Het
Hspb7 A G 4: 141,424,047 I167V probably damaging Het
Krba1 T C 6: 48,405,225 probably benign Het
Krt18 G T 15: 102,030,974 R294L probably benign Het
Lctl T A 9: 64,122,107 M1K probably null Het
Lingo2 G A 4: 35,708,375 S535F possibly damaging Het
Lrba A C 3: 86,542,688 N2105H probably damaging Het
Lrrc10 A G 10: 117,045,514 D31G probably damaging Het
Lrrtm1 T A 6: 77,243,872 V104E probably damaging Het
Mgat3 C T 15: 80,212,577 T535I probably benign Het
Nav3 T C 10: 109,716,642 I1780V possibly damaging Het
Nlrc4 A G 17: 74,446,831 W186R probably damaging Het
Nr2c1 T A 10: 94,188,255 F441I probably benign Het
Obscn A G 11: 59,051,521 probably benign Het
Olfr221 T C 14: 52,035,985 N42S possibly damaging Het
Olfr444 T C 6: 42,955,773 S92P probably benign Het
Olfr59 T C 11: 74,288,675 F10L probably benign Het
Olfr688 T C 7: 105,288,519 V142A probably damaging Het
Osr1 A T 12: 9,579,691 Y188F probably damaging Het
Pak2 A T 16: 32,033,843 N293K possibly damaging Het
Pappa A T 4: 65,307,812 T1301S probably damaging Het
Pde4dip G A 3: 97,753,126 Q679* probably null Het
Pik3r5 T A 11: 68,486,622 probably null Het
Plbd2 C T 5: 120,486,039 probably null Het
Ppp1r3a G T 6: 14,754,517 P244T possibly damaging Het
Pum1 C A 4: 130,772,674 R960S probably benign Het
Ralgapb T C 2: 158,473,249 Y845H probably damaging Het
Rbms1 A T 2: 60,758,835 M287K possibly damaging Het
Rdh1 A T 10: 127,760,037 I34F probably damaging Het
Rgl3 T A 9: 21,974,102 Q644L probably benign Het
Rpap2 T C 5: 107,620,474 S393P probably damaging Het
Rsad2 T C 12: 26,456,377 S15G probably damaging Het
Rspo1 G A 4: 124,991,397 R22Q probably benign Het
S100a11 A C 3: 93,524,202 probably null Het
Sept4 T C 11: 87,581,196 S11P probably benign Het
Serpina1c T C 12: 103,896,091 S322G probably benign Het
Setdb1 A T 3: 95,341,451 C385S probably damaging Het
Shank2 A T 7: 144,192,467 I193F possibly damaging Het
Slc4a11 G T 2: 130,686,301 probably benign Het
Snrnp40 C G 4: 130,378,043 probably null Het
Tbcd C A 11: 121,594,274 Q761K probably benign Het
Tmed6 C T 8: 107,065,566 V16M probably damaging Het
Tmem229a T C 6: 24,955,702 T18A probably benign Het
Tsc1 T A 2: 28,678,943 probably benign Het
Ube2m T C 7: 13,035,730 N49D probably damaging Het
Ubqlnl T C 7: 104,150,047 D81G probably damaging Het
Vmn2r56 A G 7: 12,715,405 V302A probably benign Het
Vmn2r73 T A 7: 85,875,867 R24S probably benign Het
Wfs1 C A 5: 36,973,194 S236I probably damaging Het
Xpot A T 10: 121,605,639 N560K probably benign Het
Yipf3 A G 17: 46,251,577 T303A probably benign Het
Zfp790 T C 7: 29,824,875 W19R probably damaging Het
Zfp846 T C 9: 20,594,007 C388R probably benign Het
Zpr1 T A 9: 46,273,336 I47N probably damaging Het
Other mutations in Kcnh2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00955:Kcnh2 APN 5 24324966 missense probably damaging 1.00
IGL01536:Kcnh2 APN 5 24326524 missense probably damaging 1.00
IGL02305:Kcnh2 APN 5 24322660 missense possibly damaging 0.86
IGL02379:Kcnh2 APN 5 24326638 missense probably damaging 1.00
IGL03100:Kcnh2 APN 5 24322684 missense probably damaging 1.00
IGL03326:Kcnh2 APN 5 24326413 missense probably damaging 1.00
R0349:Kcnh2 UTSW 5 24351237 missense probably benign 0.18
R0959:Kcnh2 UTSW 5 24322672 missense probably damaging 1.00
R0960:Kcnh2 UTSW 5 24322672 missense probably damaging 1.00
R0963:Kcnh2 UTSW 5 24322672 missense probably damaging 1.00
R1130:Kcnh2 UTSW 5 24331825 nonsense probably null
R1147:Kcnh2 UTSW 5 24324387 missense probably damaging 1.00
R1147:Kcnh2 UTSW 5 24324387 missense probably damaging 1.00
R1201:Kcnh2 UTSW 5 24322672 missense probably damaging 1.00
R1346:Kcnh2 UTSW 5 24322660 missense possibly damaging 0.86
R1608:Kcnh2 UTSW 5 24322219 missense probably benign
R1613:Kcnh2 UTSW 5 24322762 splice site probably benign
R1797:Kcnh2 UTSW 5 24322672 missense probably damaging 1.00
R2006:Kcnh2 UTSW 5 24326570 missense probably damaging 1.00
R2312:Kcnh2 UTSW 5 24324954 critical splice donor site probably null
R2435:Kcnh2 UTSW 5 24326347 critical splice donor site probably null
R4623:Kcnh2 UTSW 5 24348442 missense probably benign 0.00
R4941:Kcnh2 UTSW 5 24331087 missense probably damaging 0.98
R5394:Kcnh2 UTSW 5 24332041 missense probably benign
R5467:Kcnh2 UTSW 5 24326767 nonsense probably null
R6127:Kcnh2 UTSW 5 24325003 missense probably damaging 1.00
R6135:Kcnh2 UTSW 5 24321793 missense probably damaging 1.00
R6280:Kcnh2 UTSW 5 24331923 missense probably benign 0.43
R6936:Kcnh2 UTSW 5 24324339 missense probably damaging 1.00
R7061:Kcnh2 UTSW 5 24331922 missense probably benign 0.01
R7136:Kcnh2 UTSW 5 24332991 missense probably benign 0.13
R7399:Kcnh2 UTSW 5 24322059 missense probably damaging 0.99
R7479:Kcnh2 UTSW 5 24325492 critical splice donor site probably null
Predicted Primers PCR Primer
(F):5'- AAAGCCCAGCCTTTGTCCAGTG -3'
(R):5'- GACTGTGGAAAACAGCTTCTTTGCC -3'

Sequencing Primer
(F):5'- CCTTTGTCCAGTGGAAGGGAG -3'
(R):5'- GGGTAGGGAAAATTCTTCCCCAC -3'
Posted On2013-04-11