Incidental Mutation 'R1981:Aqp4'
ID 222409
Institutional Source Beutler Lab
Gene Symbol Aqp4
Ensembl Gene ENSMUSG00000024411
Gene Name aquaporin 4
Synonyms aquaporin-4
MMRRC Submission 039993-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.113) question?
Stock # R1981 (G1)
Quality Score 225
Status Validated
Chromosome 18
Chromosomal Location 15522553-15544039 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 15526608 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Glycine at position 291 (D291G)
Ref Sequence ENSEMBL: ENSMUSP00000078088 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000079081]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000079081
AA Change: D291G

PolyPhen 2 Score 0.980 (Sensitivity: 0.75; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000078088
Gene: ENSMUSG00000024411
AA Change: D291G

DomainStartEndE-ValueType
Pfam:MIP 29 248 8.7e-76 PFAM
Meta Mutation Damage Score 0.1057 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 94.6%
Validation Efficiency 99% (80/81)
MGI Phenotype FUNCTION: This gene encodes a member of the aquaporin family of intrinsic membrane proteins that function as water-selective channels in the plasma membranes of many cells. This protein is the predominant aquaporin found in brain and has an important role in brain water homeostasis. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. A recent study provided evidence for translational readthrough in this gene and expression of an additional C-terminally extended isoform via the use of an alternative in-frame translation termination codon. [provided by RefSeq, Dec 2015]
PHENOTYPE: Homozygotes for a targeted mutation exhibit decreased urine osmolality associated with reduced water permeability in inner medullary collecting ducts, increased survival rates and reduced brain edema after acute water intoxication and ischemic stroke, aswell as significant hearing impairment. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 80 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Anks1 T C 17: 28,204,095 (GRCm39) V181A probably damaging Het
Atad1 G T 19: 32,673,210 (GRCm39) D224E probably benign Het
Atp1a3 T G 7: 24,700,400 (GRCm39) E33A probably benign Het
Baz2b A G 2: 59,754,024 (GRCm39) F1100L possibly damaging Het
Car7 C T 8: 105,275,009 (GRCm39) probably benign Het
Casp8 C A 1: 58,868,121 (GRCm39) probably null Het
Cdh23 A T 10: 60,214,530 (GRCm39) L1495H probably damaging Het
Ceacam9 T G 7: 16,459,232 (GRCm39) L177R probably benign Het
Col16a1 C G 4: 129,959,236 (GRCm39) P346A unknown Het
Cyp2c29 A G 19: 39,296,216 (GRCm39) probably null Het
Cyp3a13 T C 5: 137,910,118 (GRCm39) S139G probably damaging Het
Dapk2 A G 9: 66,176,180 (GRCm39) H327R probably benign Het
Ddx19b T C 8: 111,735,975 (GRCm39) T357A possibly damaging Het
Dnah2 A G 11: 69,365,151 (GRCm39) Y1944H probably damaging Het
Dnai2 T A 11: 114,623,755 (GRCm39) V6E probably damaging Het
Eipr1 T C 12: 28,913,024 (GRCm39) Y242H probably damaging Het
Fam149a T G 8: 45,834,778 (GRCm39) D7A probably damaging Het
Fam217a T A 13: 35,100,737 (GRCm39) D140V probably benign Het
Fat4 G A 3: 39,045,813 (GRCm39) C3944Y probably damaging Het
Fezf2 G T 14: 12,344,405 (GRCm38) P261T probably benign Het
Gcsam A T 16: 45,440,337 (GRCm39) T127S probably damaging Het
Git2 C T 5: 114,887,620 (GRCm39) probably benign Het
Gm1527 T C 3: 28,969,984 (GRCm39) probably null Het
Gtf3c1 A G 7: 125,243,444 (GRCm39) L1720P possibly damaging Het
H2-T9 T A 17: 36,439,614 (GRCm39) D122V probably damaging Het
Hat1 A G 2: 71,220,321 (GRCm39) T28A probably benign Het
Igf2r G A 17: 12,952,790 (GRCm39) Q219* probably null Het
Impdh1 T A 6: 29,206,450 (GRCm39) D129V possibly damaging Het
Kcnh8 GAGACCAACGAGCAGCTGATGCTTCAGA GAGA 17: 53,032,934 (GRCm39) 74 probably benign Het
Ltbp3 A G 19: 5,808,107 (GRCm39) Q1250R probably benign Het
Mansc4 T A 6: 146,977,173 (GRCm39) I148F probably benign Het
Mast2 T C 4: 116,172,037 (GRCm39) Y569C probably damaging Het
Mcoln3 A T 3: 145,846,345 (GRCm39) K552* probably null Het
Mctp2 T C 7: 71,814,446 (GRCm39) Q601R probably benign Het
Mei1 A G 15: 81,987,513 (GRCm39) N859S probably benign Het
Myo19 A T 11: 84,782,996 (GRCm39) Q170L possibly damaging Het
Myo1h T C 5: 114,491,898 (GRCm39) F676S probably damaging Het
Myo9a A G 9: 59,801,429 (GRCm39) T1876A probably benign Het
Nav3 G T 10: 109,554,951 (GRCm39) probably benign Het
Ndor1 T C 2: 25,145,236 (GRCm39) Y43C probably damaging Het
Nlrp1a A G 11: 70,989,764 (GRCm39) V1102A probably damaging Het
Nmnat3 T C 9: 98,292,352 (GRCm39) I199T possibly damaging Het
Nsun7 T C 5: 66,418,557 (GRCm39) S96P probably damaging Het
Ntng1 A G 3: 109,842,326 (GRCm39) V149A possibly damaging Het
Oas3 T C 5: 120,899,900 (GRCm39) probably benign Het
Or10v9 T G 19: 11,832,371 (GRCm39) Q315H possibly damaging Het
Or4k47 T A 2: 111,451,586 (GRCm39) I278F probably benign Het
Or5bw2 A G 7: 6,573,557 (GRCm39) D189G probably benign Het
Or6z7 T C 7: 6,483,931 (GRCm39) M75V probably benign Het
Or8b3 T C 9: 38,315,031 (GRCm39) L287P probably damaging Het
Or8k53 A T 2: 86,177,486 (GRCm39) I208N possibly damaging Het
Pax2 G A 19: 44,806,904 (GRCm39) D301N probably damaging Het
Pcsk4 T A 10: 80,161,613 (GRCm39) E176V probably damaging Het
Pkhd1 G A 1: 20,187,284 (GRCm39) P3675S probably benign Het
Plekho2 A T 9: 65,465,974 (GRCm39) L138Q probably damaging Het
Ppp4r3c1 A T X: 88,975,051 (GRCm39) V382E probably damaging Het
Prkcsh A G 9: 21,924,164 (GRCm39) D458G probably damaging Het
Prr11 T A 11: 86,994,116 (GRCm39) D100V probably damaging Het
Qars1 A G 9: 108,392,227 (GRCm39) N136D probably damaging Het
Rbm15b A G 9: 106,758,822 (GRCm39) probably benign Het
Rel C T 11: 23,692,761 (GRCm39) G424D probably benign Het
Rsrc1 A G 3: 67,257,338 (GRCm39) D250G probably benign Het
Samt3 A C X: 85,090,740 (GRCm39) M211L probably benign Het
Scn2a C A 2: 65,520,514 (GRCm39) N503K probably damaging Het
Sh2d6 G A 6: 72,494,527 (GRCm39) probably benign Het
Smg8 T C 11: 86,976,157 (GRCm39) T475A probably benign Het
Ssxb10 A G X: 8,197,258 (GRCm39) D77G probably benign Het
Tbx20 T A 9: 24,682,209 (GRCm39) K48N possibly damaging Het
Tead1 C A 7: 112,490,952 (GRCm39) D231E probably benign Het
Ticam1 C T 17: 56,578,555 (GRCm39) R180H probably damaging Het
Tjp1 A T 7: 64,962,603 (GRCm39) F1111L probably damaging Het
Tlr11 T A 14: 50,599,445 (GRCm39) I477K possibly damaging Het
Ttc13 A G 8: 125,440,926 (GRCm39) probably null Het
Ttc17 T C 2: 94,157,049 (GRCm39) N411S probably benign Het
Usp15 T A 10: 122,960,946 (GRCm39) probably benign Het
Usp18 A G 6: 121,229,476 (GRCm39) K32E probably benign Het
Vmn1r12 A T 6: 57,136,646 (GRCm39) M248L probably benign Het
Zbtb14 C A 17: 69,695,497 (GRCm39) F398L probably damaging Het
Zfp930 T A 8: 69,680,824 (GRCm39) L172H probably damaging Het
Zfp976 G A 7: 42,263,046 (GRCm39) H264Y probably damaging Het
Other mutations in Aqp4
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00929:Aqp4 APN 18 15,526,656 (GRCm39) missense probably benign 0.01
IGL01700:Aqp4 APN 18 15,532,922 (GRCm39) missense probably benign 0.44
IGL02409:Aqp4 APN 18 15,532,782 (GRCm39) missense probably benign 0.02
IGL02812:Aqp4 APN 18 15,530,632 (GRCm39) splice site probably null
IGL03157:Aqp4 APN 18 15,533,037 (GRCm39) missense probably benign 0.18
IGL03196:Aqp4 APN 18 15,526,566 (GRCm39) missense probably benign 0.19
R0358:Aqp4 UTSW 18 15,531,302 (GRCm39) missense probably benign
R1061:Aqp4 UTSW 18 15,531,248 (GRCm39) missense probably damaging 1.00
R1982:Aqp4 UTSW 18 15,526,608 (GRCm39) missense probably damaging 0.98
R2274:Aqp4 UTSW 18 15,526,537 (GRCm39) missense probably benign
R3033:Aqp4 UTSW 18 15,526,617 (GRCm39) missense possibly damaging 0.80
R4608:Aqp4 UTSW 18 15,531,183 (GRCm39) missense probably benign 0.25
R4817:Aqp4 UTSW 18 15,532,815 (GRCm39) missense probably damaging 1.00
R4882:Aqp4 UTSW 18 15,531,311 (GRCm39) missense possibly damaging 0.73
R5870:Aqp4 UTSW 18 15,532,946 (GRCm39) missense probably damaging 1.00
R6235:Aqp4 UTSW 18 15,531,170 (GRCm39) missense probably damaging 1.00
R6334:Aqp4 UTSW 18 15,526,648 (GRCm39) missense probably benign
R6856:Aqp4 UTSW 18 15,532,953 (GRCm39) missense possibly damaging 0.88
R7753:Aqp4 UTSW 18 15,533,033 (GRCm39) missense probably benign 0.00
R7839:Aqp4 UTSW 18 15,532,737 (GRCm39) missense possibly damaging 0.51
R8191:Aqp4 UTSW 18 15,531,222 (GRCm39) missense probably benign
R8206:Aqp4 UTSW 18 15,526,716 (GRCm39) missense possibly damaging 0.88
R8759:Aqp4 UTSW 18 15,533,048 (GRCm39) missense probably benign
R9614:Aqp4 UTSW 18 15,526,687 (GRCm39) missense probably benign 0.01
T0970:Aqp4 UTSW 18 15,532,940 (GRCm39) missense probably damaging 1.00
Z1177:Aqp4 UTSW 18 15,532,938 (GRCm39) missense possibly damaging 0.93
Predicted Primers PCR Primer
(F):5'- GCAAGAAACCCGCAAGTGTC -3'
(R):5'- CCTTCTCCTCAGATATATTGGGTTGG -3'

Sequencing Primer
(F):5'- ACAAATCTGTTTCCTTAATGGGTGGC -3'
(R):5'- CTTAAGGAAGCCTTCAGC -3'
Posted On 2014-08-25