Incidental Mutation 'IGL02696:Gjb2'
ID 303939
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Gjb2
Ensembl Gene ENSMUSG00000046352
Gene Name gap junction protein, beta 2
Synonyms connexin 26, Cx26, Gjb-2
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # IGL02696
Quality Score
Status
Chromosome 14
Chromosomal Location 57336059-57342159 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to T at 57337769 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Phenylalanine to Leucine at position 146 (F146L)
Ref Sequence ENSEMBL: ENSMUSP00000054343 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000055698]
AlphaFold Q00977
Predicted Effect probably damaging
Transcript: ENSMUST00000055698
AA Change: F146L

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000054343
Gene: ENSMUSG00000046352
AA Change: F146L

DomainStartEndE-ValueType
CNX 42 75 3.78e-20 SMART
Connexin_CCC 146 213 8.35e-40 SMART
Coding Region Coverage
Validation Efficiency
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: 45 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Actr8 A G 14: 29,704,628 (GRCm39) T43A probably benign Het
Adgrd1 T C 5: 129,217,918 (GRCm39) probably benign Het
Asxl1 T A 2: 153,242,115 (GRCm39) Y888* probably null Het
Atp8b5 T C 4: 43,369,634 (GRCm39) V924A possibly damaging Het
AU040320 T C 4: 126,736,380 (GRCm39) L821P probably damaging Het
Capn11 T C 17: 45,943,635 (GRCm39) N596S probably damaging Het
Cnot1 C A 8: 96,471,645 (GRCm39) V1219F probably benign Het
Cope T C 8: 70,763,143 (GRCm39) probably null Het
Crim1 A G 17: 78,587,402 (GRCm39) E169G probably damaging Het
Csmd3 A T 15: 47,533,065 (GRCm39) F2395I probably benign Het
Ctso A C 3: 81,858,691 (GRCm39) D220A possibly damaging Het
Cttnbp2 G A 6: 18,434,128 (GRCm39) P577S probably benign Het
D930048N14Rik T A 11: 51,544,821 (GRCm39) probably benign Het
Dck T A 5: 88,920,666 (GRCm39) S129T probably damaging Het
Dlc1 A G 8: 37,041,326 (GRCm39) V1301A possibly damaging Het
Dusp16 G A 6: 134,695,398 (GRCm39) R478C probably damaging Het
Ermap C T 4: 119,044,904 (GRCm39) R49K possibly damaging Het
Flnc A G 6: 29,446,697 (GRCm39) K969R probably damaging Het
Hdc A T 2: 126,436,220 (GRCm39) D550E probably damaging Het
Hs6st3 A T 14: 120,106,731 (GRCm39) I380F probably damaging Het
Htr1d T C 4: 136,170,722 (GRCm39) V317A probably benign Het
Kalrn A T 16: 34,040,484 (GRCm39) M963K probably damaging Het
Kl T A 5: 150,904,450 (GRCm39) S401T probably benign Het
Lair1 A G 7: 4,013,848 (GRCm39) probably benign Het
Lrp5 C T 19: 3,652,253 (GRCm39) V1206I probably benign Het
Matn4 A G 2: 164,238,758 (GRCm39) F343S probably benign Het
Mrgpra4 G T 7: 47,631,251 (GRCm39) R117S possibly damaging Het
Myh14 T C 7: 44,314,530 (GRCm39) Y131C probably damaging Het
Nap1l4 A T 7: 143,077,898 (GRCm39) N345K possibly damaging Het
Oas1c T C 5: 120,943,528 (GRCm39) R204G probably benign Het
Or52e4 A G 7: 104,705,569 (GRCm39) T39A probably benign Het
Or8k25 T A 2: 86,243,959 (GRCm39) T146S probably benign Het
Pakap T A 4: 57,854,663 (GRCm39) D58E probably damaging Het
Pin1 G A 9: 20,574,531 (GRCm39) G150E probably benign Het
R3hdm2 T C 10: 127,300,888 (GRCm39) probably null Het
Rai1 C A 11: 60,084,782 (GRCm39) H1843Q probably benign Het
Siae G T 9: 37,542,680 (GRCm39) A194S probably damaging Het
Slc6a12 G T 6: 121,340,211 (GRCm39) V485L probably benign Het
Stil T G 4: 114,898,692 (GRCm39) S1107R probably damaging Het
Syt16 T C 12: 74,176,185 (GRCm39) V18A possibly damaging Het
Trpm8 A G 1: 88,275,773 (GRCm39) D457G probably damaging Het
Tshr A T 12: 91,460,103 (GRCm39) T66S possibly damaging Het
Ttn T A 2: 76,537,639 (GRCm39) Q34763L probably benign Het
Ubr2 T A 17: 47,274,691 (GRCm39) M830L probably benign Het
Ulk1 A G 5: 110,940,918 (GRCm39) F337S probably damaging Het
Other mutations in Gjb2
AlleleSourceChrCoordTypePredicted EffectPPH 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
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
R4569:Gjb2 UTSW 14 57,337,762 (GRCm39) missense probably benign 0.03
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
Posted On 2015-04-16