Mutagenetix > Incidental Mutation

Incidental Mutation 'R7126:Kcnj2'

552341

Institutional Source

Beutler Lab

Gene Symbol

Kcnj2

Ensembl Gene

ENSMUSG00000041695

Gene Name

potassium inwardly-rectifying channel, subfamily J, member 2

Synonyms

Kcnf1, IRK1, Kir2.1

MMRRC Submission

045213-MU

Accession Numbers

Essential gene?

Essential (E-score: 1.000) question?

Stock #

R7126 (G1)

Quality Score

225.009

Status

Validated

Chromosome

Chromosomal Location

110956990-110967647 bp(+) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

A to G at 110963648 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Threonine to Alanine at position 347 (T347A)

Ref Sequence

ENSEMBL: ENSMUSP00000037192 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000042970]

AlphaFold

P35561

PDB Structure

Crystal Structure of Cytoplasmic Domains of IRK1 (Kir2.1) channel [X-RAY DIFFRACTION]
Cytoplasmic Domain Structure of Kir2.1 containing Andersen's Mutation R218Q and Rescue Mutation T309K [X-RAY DIFFRACTION]
Single particle analysis of Kir2.1NC_4 in negative stain [SOLUTION SCATTERING, ELECTRON MICROSCOPY]

Predicted Effect

probably damaging
Transcript: ENSMUST00000042970
AA Change: T347A

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)

SMART Domains

Protein: ENSMUSP00000037192
Gene: ENSMUSG00000041695
AA Change: T347A

Domain	Start	End	E-Value	Type
Pfam:IRK_N	1	47	2.9e-29	PFAM
Pfam:IRK	48	373	7.3e-158	PFAM

Coding Region Coverage

1x: 100.0%
3x: 99.9%
10x: 99.7%
20x: 99.1%

Validation Efficiency

97% (73/75)

MGI Phenotype

FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Potassium channels are present in most mammalian cells, where they participate in a wide range of physiologic responses. The protein encoded by this gene is an integral membrane protein and inward-rectifier type potassium channel. The encoded protein, which has a greater tendency to allow potassium to flow into a cell rather than out of a cell, probably participates in establishing action potential waveform and excitability of neuronal and muscle tissues. Mutations in this gene have been associated with Andersen syndrome, which is characterized by periodic paralysis, cardiac arrhythmias, and dysmorphic features. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a targeted null mutation die within 8-12 hours after birth, displaying cyanosis and respiratory distress, as well as complete cleft of the secondary palate, and loss of K+-mediated vasodilatation in cerebral arteries. [provided by MGI curators]

Allele List at MGI

Other mutations in this stock

Total: 73 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
1810062G17Rik	T	C	3: 36,535,988 (GRCm39)	C85R	unknown	Het
3110082I17Rik	G	T	5: 139,347,005 (GRCm39)	H153Q	unknown	Het
Acadsb	T	C	7: 131,039,177 (GRCm39)	I316T	probably benign	Het
Acsbg2	A	T	17: 57,153,633 (GRCm39)	N523K	probably damaging	Het
Ahnak	C	T	19: 8,979,723 (GRCm39)	P336S	possibly damaging	Het
Ankdd1b	A	G	13: 96,566,370 (GRCm39)	V277A	possibly damaging	Het
Aspm	A	G	1: 139,408,541 (GRCm39)	Y2476C	probably benign	Het
Atg13	G	A	2: 91,510,765 (GRCm39)	R321W	probably damaging	Het
B4galt2	A	G	4: 117,734,735 (GRCm39)	F211S	probably damaging	Het
Baiap3	T	A	17: 25,464,119 (GRCm39)	T913S	possibly damaging	Het
Btbd18	A	T	2: 84,496,546 (GRCm39)	E61D	possibly damaging	Het
Btnl9	G	T	11: 49,060,082 (GRCm39)	S555R	probably damaging	Het
Cbs	T	A	17: 31,838,113 (GRCm39)	M379L	probably benign	Het
Chd9	G	A	8: 91,741,853 (GRCm39)	G1614D	unknown	Het
Cmya5	G	A	13: 93,226,448 (GRCm39)	P2880L	probably benign	Het
Cnnm1	T	C	19: 43,473,292 (GRCm39)	S729P	probably damaging	Het
Cox16	T	A	12: 81,518,940 (GRCm39)	E70D	probably benign	Het
Cp	A	G	3: 20,034,788 (GRCm39)	H699R	probably damaging	Het
Cyp2d26	T	C	15: 82,678,209 (GRCm39)	N56D	probably benign	Het
Dennd4c	A	G	4: 86,725,667 (GRCm39)	Y707C	probably damaging	Het
Dnah5	A	T	15: 28,349,983 (GRCm39)	E2555D	probably benign	Het
Ess2	T	C	16: 17,729,154 (GRCm39)	T6A	unknown	Het
Filip1	A	G	9: 79,805,577 (GRCm39)	L59P	possibly damaging	Het
Fsip2	A	G	2: 82,813,485 (GRCm39)	N3268S	possibly damaging	Het
Gja10	A	T	4: 32,601,014 (GRCm39)	C457S	probably benign	Het
Gm4779	TCGGGGCCGGGGCCGGGGCCG	TCGGGGCCGGGGCCGGGGCCGGGGCCG	X: 100,837,777 (GRCm39)		probably benign	Het
Gm47959	G	A	1: 82,978,503 (GRCm39)	G57S	unknown	Het
Grep1	C	T	17: 23,939,538 (GRCm39)	V8I	probably benign	Het
Grid2	T	A	6: 64,053,794 (GRCm39)	V331E	probably damaging	Het
Inpp4a	C	A	1: 37,413,353 (GRCm39)	H123Q	probably benign	Het
Ireb2	T	A	9: 54,793,851 (GRCm39)	Y260*	probably null	Het
Itpr2	G	A	6: 146,259,294 (GRCm39)	Q628*	probably null	Het
Kbtbd11	G	A	8: 15,078,759 (GRCm39)	A453T	probably damaging	Het
Kif19b	A	T	5: 140,477,073 (GRCm39)	D874V	probably benign	Het
Klhl12	A	G	1: 134,395,521 (GRCm39)	H161R	probably damaging	Het
Krt78	T	C	15: 101,856,871 (GRCm39)	E412G	probably damaging	Het
Lzic	A	G	4: 149,573,132 (GRCm39)	I95V	probably damaging	Het
Mme	C	T	3: 63,276,322 (GRCm39)	P700S	probably damaging	Het
Mroh2a	G	T	1: 88,182,657 (GRCm39)	R1195L	possibly damaging	Het
Mthfd2	A	G	6: 83,290,472 (GRCm39)	V53A	probably benign	Het
Mtus1	A	G	8: 41,468,439 (GRCm39)	L210P	probably damaging	Het
Muc16	T	C	9: 18,552,512 (GRCm39)	T4594A	probably benign	Het
Niban1	T	A	1: 151,590,318 (GRCm39)	C537*	probably null	Het
Olfm5	A	T	7: 103,809,187 (GRCm39)	C208S	probably damaging	Het
Or10q1	T	A	19: 13,726,887 (GRCm39)	I139N	possibly damaging	Het
Or2ad1	A	T	13: 21,326,888 (GRCm39)	L113H	probably damaging	Het
Or7a39	T	C	10: 78,715,411 (GRCm39)	V135A	possibly damaging	Het
Parp12	T	C	6: 39,088,670 (GRCm39)	I189V	probably benign	Het
Plin1	T	C	7: 79,376,412 (GRCm39)		probably null	Het
Prl7a1	C	T	13: 27,826,402 (GRCm39)		probably null	Het
Ptpn23	T	C	9: 110,217,812 (GRCm39)	D711G	probably benign	Het
Rgs22	A	T	15: 36,103,954 (GRCm39)	I169N	probably damaging	Het
Scn7a	G	T	2: 66,587,630 (GRCm39)	H24Q	possibly damaging	Het
Scrt2	C	T	2: 151,935,006 (GRCm39)	P53L	probably damaging	Het
Sh3rf1	A	T	8: 61,802,458 (GRCm39)	I264L	probably benign	Het
Smarcd1	A	T	15: 99,607,206 (GRCm39)	D393V	probably damaging	Het
Spag17	T	G	3: 100,008,751 (GRCm39)	N1960K	probably benign	Het
Ssb	A	G	2: 69,696,845 (GRCm39)	T62A	possibly damaging	Het
Taar7b	T	A	10: 23,875,960 (GRCm39)	Y42N	possibly damaging	Het
Terf1	A	T	1: 15,883,363 (GRCm39)	I159L	probably benign	Het
Tff3	T	G	17: 31,346,410 (GRCm39)	N54T	probably benign	Het
Top2a	A	G	11: 98,905,818 (GRCm39)	L285P	probably benign	Het
Trim24	A	G	6: 37,896,392 (GRCm39)	Y283C	probably damaging	Het
Trim58	T	C	11: 58,531,405 (GRCm39)	C38R	probably damaging	Het
Trpa1	T	A	1: 14,960,648 (GRCm39)	T647S	probably benign	Het
Trpm4	A	T	7: 44,960,133 (GRCm39)		probably null	Het
Trpm6	C	T	19: 18,831,397 (GRCm39)	Q1421*	probably null	Het
Ubr2	A	T	17: 47,284,982 (GRCm39)		probably null	Het
Vmn1r46	T	G	6: 89,953,976 (GRCm39)	I275S	possibly damaging	Het
Vmn2r54	A	G	7: 12,366,088 (GRCm39)	F282S	possibly damaging	Het
Vmn2r57	A	G	7: 41,049,218 (GRCm39)	S844P	possibly damaging	Het
Vps13a	A	C	19: 16,688,243 (GRCm39)	C855G	probably benign	Het
Wdr31	T	A	4: 62,381,666 (GRCm39)	Q55L	probably benign	Het

Other mutations in Kcnj2

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL00566:Kcnj2	APN	11	110,962,653 (GRCm39)	missense	probably damaging	1.00
IGL02448:Kcnj2	APN	11	110,963,108 (GRCm39)	missense	probably benign	0.00
R0090:Kcnj2	UTSW	11	110,963,853 (GRCm39)	missense	probably benign	0.02
R1162:Kcnj2	UTSW	11	110,963,793 (GRCm39)	missense	probably benign
R1990:Kcnj2	UTSW	11	110,963,709 (GRCm39)	missense	probably benign	0.00
R3948:Kcnj2	UTSW	11	110,963,481 (GRCm39)	missense	possibly damaging	0.73
R4417:Kcnj2	UTSW	11	110,963,015 (GRCm39)	missense	probably damaging	1.00
R4605:Kcnj2	UTSW	11	110,963,676 (GRCm39)	missense	probably damaging	1.00
R5191:Kcnj2	UTSW	11	110,963,297 (GRCm39)	nonsense	probably null
R5439:Kcnj2	UTSW	11	110,963,057 (GRCm39)	missense	probably damaging	1.00
R5530:Kcnj2	UTSW	11	110,962,917 (GRCm39)	missense	probably damaging	1.00
R6167:Kcnj2	UTSW	11	110,963,315 (GRCm39)	missense	probably benign
R7713:Kcnj2	UTSW	11	110,963,309 (GRCm39)	missense	probably benign	0.00
R8007:Kcnj2	UTSW	11	110,963,884 (GRCm39)	missense	probably benign	0.24
R9019:Kcnj2	UTSW	11	110,963,415 (GRCm39)	missense	probably damaging	1.00
R9072:Kcnj2	UTSW	11	110,962,664 (GRCm39)	missense	possibly damaging	0.49
R9073:Kcnj2	UTSW	11	110,962,664 (GRCm39)	missense	possibly damaging	0.49
R9252:Kcnj2	UTSW	11	110,963,355 (GRCm39)	missense	probably damaging	1.00
R9327:Kcnj2	UTSW	11	110,963,719 (GRCm39)	missense	probably benign	0.07
R9418:Kcnj2	UTSW	11	110,963,357 (GRCm39)	missense	probably damaging	1.00
X0052:Kcnj2	UTSW	11	110,962,682 (GRCm39)	missense	probably benign	0.13
Z1176:Kcnj2	UTSW	11	110,962,961 (GRCm39)	missense	probably benign

Predicted Primers

PCR Primer
(F):5'- GTAAGCAGGACATTGACAATGC -3'
(R):5'- TCTAGAGGTACGCTTGCCTG -3'

Sequencing Primer
(F):5'- CAGGACATTGACAATGCAGACTTTG -3'
(R):5'- ATCTATGCCAGGAGGTGAGTC -3'

Posted On

2019-05-15