Mutagenetix > Incidental Mutation

Incidental Mutation 'R4569:Gjb2'

342032

Institutional Source

Beutler Lab

Gene Symbol

Gjb2

Ensembl Gene

ENSMUSG00000046352

Gene Name

gap junction protein, beta 2

Synonyms

connexin 26, Cx26, Gjb-2

MMRRC Submission

041793-MU

Accession Numbers

Essential gene?

Essential (E-score: 1.000) question?

Stock #

R4569 (G1)

Quality Score

225

Status

Validated

Chromosome

Chromosomal Location

57336059-57342159 bp(-) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

C to T at 57337762 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Valine to Isoleucine at position 149 (V149I)

Ref Sequence

ENSEMBL: ENSMUSP00000054343 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000055698]

AlphaFold

Q00977

Predicted Effect

probably benign
Transcript: ENSMUST00000055698
AA Change: V149I

PolyPhen 2 Score 0.025 (Sensitivity: 0.95; Specificity: 0.81)

SMART Domains

Protein: ENSMUSP00000054343
Gene: ENSMUSG00000046352
AA Change: V149I

Domain	Start	End	E-Value	Type
CNX	42	75	3.78e-20	SMART
Connexin_CCC	146	213	8.35e-40	SMART

Meta Mutation Damage Score

0.0898

Coding Region Coverage

1x: 99.3%
3x: 98.6%
10x: 97.2%
20x: 94.9%

Validation Efficiency

99% (87/88)

MGI Phenotype

FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a member of the gap junction protein family. The gap junctions were first characterized by electron microscopy as regionally specialized structures on plasma membranes of contacting adherent cells. These structures were shown to consist of cell-to-cell channels that facilitate the transfer of ions and small molecules between cells. The gap junction proteins, also known as connexins, purified from fractions of enriched gap junctions from different tissues differ. According to sequence similarities at the nucleotide and amino acid levels, the gap junction proteins are divided into two categories, alpha and beta. Mutations in this gene are responsible for as much as 50% of pre-lingual, recessive deafness. [provided by RefSeq, Oct 2008]
PHENOTYPE: Mutant homozygotes are developmentally retarded with impaired transplacental nutrient/glucose uptake and die about embryonic day 11. Conditional mutants in inner ear are hearing impaired with cell death in cochlear epithelial network and inner hair cells. [provided by MGI curators]

Allele List at MGI

Other mutations in this stock

Total: 78 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
2610021A01Rik	A	G	7: 41,275,262 (GRCm39)	T322A	probably benign	Het
Abhd13	C	T	8: 10,038,071 (GRCm39)	P223S	possibly damaging	Het
Adgra3	T	A	5: 50,117,905 (GRCm39)	L1214F	probably damaging	Het
Alkbh2	C	T	5: 114,262,287 (GRCm39)	E148K	probably damaging	Het
Ankrd13a	C	A	5: 114,927,373 (GRCm39)	P120Q	probably damaging	Het
Apbb1ip	A	G	2: 22,739,556 (GRCm39)	Y277C	probably damaging	Het
Arfgap1	T	C	2: 180,618,166 (GRCm39)		probably benign	Het
Arid2	T	A	15: 96,290,343 (GRCm39)	V1746D	probably damaging	Het
C1qtnf7	T	A	5: 43,766,549 (GRCm39)	N49K	possibly damaging	Het
Cacnb2	A	T	2: 14,990,811 (GRCm39)	D587V	possibly damaging	Het
Ccar2	A	T	14: 70,389,359 (GRCm39)		probably null	Het
Cdk2ap2	T	C	19: 4,147,879 (GRCm39)	F49L	possibly damaging	Het
Cdon	A	T	9: 35,388,265 (GRCm39)	I747F	probably damaging	Het
Cyp19a1	G	A	9: 54,100,607 (GRCm39)	P27S	probably benign	Het
Cyp4v3	T	A	8: 45,760,029 (GRCm39)	R508W	probably damaging	Het
Dclk1	T	C	3: 55,154,831 (GRCm39)	L87P	probably damaging	Het
Ddx41	G	A	13: 55,683,834 (GRCm39)	R66C	possibly damaging	Het
Dmxl1	T	C	18: 49,985,427 (GRCm39)	Y225H	probably damaging	Het
Dnah7a	G	A	1: 53,450,818 (GRCm39)	P3871S	probably benign	Het
Dnhd1	A	G	7: 105,306,373 (GRCm39)		probably null	Het
Dph1	A	T	11: 75,069,721 (GRCm39)		probably benign	Het
Egln2	A	G	7: 26,859,008 (GRCm39)	I382T	probably damaging	Het
Enpp3	A	G	10: 24,652,780 (GRCm39)	Y726H	probably damaging	Het
Fbxo32	A	G	15: 58,044,873 (GRCm39)	F353L	probably damaging	Het
Fchsd2	G	A	7: 100,926,809 (GRCm39)	G657D	possibly damaging	Het
Fer1l4	T	A	2: 155,878,559 (GRCm39)	E44V	possibly damaging	Het
Glipr1l1	A	G	10: 111,898,317 (GRCm39)	M141V	probably benign	Het
Gnaq	T	C	19: 16,312,370 (GRCm39)	S211P	probably damaging	Het
Gnl1	A	G	17: 36,299,142 (GRCm39)	R527G	probably benign	Het
Gns	A	G	10: 121,217,083 (GRCm39)	Q286R	probably benign	Het
Gon4l	T	C	3: 88,817,397 (GRCm39)		probably benign	Het
Gpr107	T	C	2: 31,097,677 (GRCm39)		probably benign	Het
Gprasp1	C	T	X: 134,703,592 (GRCm39)	R1262C	probably damaging	Het
Gtf2ird1	A	T	5: 134,439,857 (GRCm39)	D124E	probably damaging	Het
Hbp1	T	A	12: 32,000,231 (GRCm39)		probably benign	Het
Hrnr	C	T	3: 93,230,875 (GRCm39)	T371I	unknown	Het
Ints2	A	G	11: 86,147,024 (GRCm39)	C41R	probably damaging	Het
Jhy	A	G	9: 40,822,389 (GRCm39)	I583T	probably benign	Het
Jph4	G	T	14: 55,352,503 (GRCm39)	R77S	probably damaging	Het
Kcnd3	C	T	3: 105,566,082 (GRCm39)	A421V	probably damaging	Het
Klhl12	A	T	1: 134,413,507 (GRCm39)	I331F	probably benign	Het
Map4k4	G	A	1: 40,039,698 (GRCm39)	R30Q	probably damaging	Het
Mgst1	C	A	6: 138,133,213 (GRCm39)	T176K	probably damaging	Het
Negr1	C	A	3: 156,914,013 (GRCm39)		probably benign	Het
Nrg1	C	T	8: 32,407,802 (GRCm39)	V144I	probably benign	Het
Ntmt2	T	A	1: 163,530,586 (GRCm39)	*284C	probably null	Het
Or1ad8	T	C	11: 50,898,381 (GRCm39)	I194T	possibly damaging	Het
Otog	A	G	7: 45,959,571 (GRCm39)	D720G	probably damaging	Het
Pex11b	A	T	3: 96,551,330 (GRCm39)		probably benign	Het
Phtf2	T	C	5: 20,994,593 (GRCm39)		probably benign	Het
Ppip5k1	C	T	2: 121,174,044 (GRCm39)	R359Q	possibly damaging	Het
Prickle2	T	C	6: 92,399,323 (GRCm39)	I185V	probably benign	Het
Prrc2a	G	A	17: 35,377,473 (GRCm39)	P562S	unknown	Het
Rdx	A	G	9: 51,980,141 (GRCm39)	I245V	probably benign	Het
Rem2	T	C	14: 54,715,116 (GRCm39)	S98P	probably damaging	Het
Rhob	T	G	12: 8,549,373 (GRCm39)	D87A	probably damaging	Het
Ros1	T	A	10: 52,040,090 (GRCm39)	E300D	probably damaging	Het
Sbf2	A	G	7: 109,948,060 (GRCm39)		probably null	Het
Sipa1l3	G	T	7: 29,025,287 (GRCm39)	P619Q	probably damaging	Het
Snupn	A	G	9: 56,885,346 (GRCm39)	E217G	probably benign	Het
Ston2	T	A	12: 91,606,496 (GRCm39)	*896C	probably null	Het
Stradb	C	T	1: 59,019,117 (GRCm39)	R13*	probably null	Het
Tbx21	G	A	11: 97,005,581 (GRCm39)	A128V	probably benign	Het
Tep1	A	T	14: 51,062,197 (GRCm39)	C2552S	probably benign	Het
Tgif1	A	T	17: 71,151,912 (GRCm39)	V233E	possibly damaging	Het
Trim31	A	T	17: 37,209,633 (GRCm39)	I130L	probably benign	Het
Trrap	C	T	5: 144,728,928 (GRCm39)	T614I	probably benign	Het
Ttn	C	A	2: 76,766,758 (GRCm39)	V3107F	probably damaging	Het
Txnrd2	T	G	16: 18,274,956 (GRCm39)	D322E	probably benign	Het
Unc45b	T	A	11: 82,827,315 (GRCm39)		probably null	Het
Usp43	C	T	11: 67,789,788 (GRCm39)	C252Y	probably damaging	Het
Usp43	A	T	11: 67,766,178 (GRCm39)	L744*	probably null	Het
Vmn2r71	A	C	7: 85,273,402 (GRCm39)	K739Q	possibly damaging	Het
Vps16	C	T	2: 130,284,124 (GRCm39)	T653M	probably benign	Het
Wdr83os	T	A	8: 85,808,495 (GRCm39)	S82R	probably damaging	Het
Xpo6	T	A	7: 125,727,427 (GRCm39)	L526F	probably damaging	Het
Zfhx4	G	A	3: 5,466,894 (GRCm39)	V2351I	probably benign	Het
Zfp558	A	T	9: 18,367,799 (GRCm39)	C330S	possibly damaging	Het

Other mutations in Gjb2

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL01067:Gjb2	APN	14	57,337,629 (GRCm39)	missense	possibly damaging	0.84
IGL01325:Gjb2	APN	14	57,337,678 (GRCm39)	missense	probably benign	0.07
IGL01528:Gjb2	APN	14	57,338,125 (GRCm39)	missense	probably damaging	0.99
IGL02225:Gjb2	APN	14	57,337,645 (GRCm39)	missense	probably damaging	1.00
IGL02696:Gjb2	APN	14	57,337,769 (GRCm39)	missense	probably damaging	1.00
R0143:Gjb2	UTSW	14	57,337,526 (GRCm39)	synonymous	silent
R3816:Gjb2	UTSW	14	57,337,530 (GRCm39)	missense	probably benign
R3817:Gjb2	UTSW	14	57,337,530 (GRCm39)	missense	probably benign
R3818:Gjb2	UTSW	14	57,337,530 (GRCm39)	missense	probably benign
R3819:Gjb2	UTSW	14	57,337,530 (GRCm39)	missense	probably benign
R5922:Gjb2	UTSW	14	57,337,755 (GRCm39)	missense	probably benign	0.15
R7823:Gjb2	UTSW	14	57,337,963 (GRCm39)	missense	probably benign	0.19

Predicted Primers

PCR Primer
(F):5'- TTGGACTTTCCTGAGCAATACC -3'
(R):5'- CTGGTAGCTATGCATGTGGC -3'

Sequencing Primer
(F):5'- TGGACTTTCCTGAGCAATACCTAACG -3'
(R):5'- GTAGCTATGCATGTGGCCTACC -3'

Posted On

2015-09-24