Incidental Mutation 'R0556:Gnat3'
ID 45554
Institutional Source Beutler Lab
Gene Symbol Gnat3
Ensembl Gene ENSMUSG00000028777
Gene Name G protein subunit alpha transducin 3
Synonyms Gtn, Ggust, alpha-gustducin
MMRRC Submission 038748-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R0556 (G1)
Quality Score 225
Status Validated
Chromosome 5
Chromosomal Location 18167568-18224666 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to G at 18224596 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Glycine at position 332 (V332G)
Ref Sequence ENSEMBL: ENSMUSP00000030561 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000030561]
AlphaFold Q3V3I2
Predicted Effect probably damaging
Transcript: ENSMUST00000030561
AA Change: V332G

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000030561
Gene: ENSMUSG00000028777
AA Change: V332G

DomainStartEndE-ValueType
G_alpha 13 353 3.06e-221 SMART
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 96.9%
  • 20x: 94.7%
Validation Efficiency 98% (64/65)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Sweet, bitter, and umami tastes are transmitted from taste receptors by a specific guanine nucleotide binding protein. The protein encoded by this gene is the alpha subunit of this heterotrimeric G protein, which is found not only in the oral epithelium but also in gut tissues. Variations in this gene have been linked to metabolic syndrome. [provided by RefSeq, Dec 2015]
PHENOTYPE: Homozygous mutation of this gene results in abnormal taste sensitivity. Mice show reduced behavioral and electrophysiological responses to bitter, sweet, and unami compounds. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 63 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1600012H06Rik T A 17: 15,164,213 (GRCm39) Y113* probably null Het
4930402F06Rik T C 2: 35,280,482 (GRCm39) probably benign Het
Acad11 A G 9: 103,992,501 (GRCm39) E481G probably damaging Het
Aldh1a1 A T 19: 20,611,842 (GRCm39) N389Y probably damaging Het
Bmpr2 C T 1: 59,854,487 (GRCm39) T112M probably damaging Het
Bms1 A G 6: 118,390,140 (GRCm39) Y227H probably damaging Het
Cab39 A G 1: 85,763,212 (GRCm39) probably benign Het
Ccn3 A T 15: 54,612,563 (GRCm39) T191S probably damaging Het
Ccno T C 13: 113,124,820 (GRCm39) probably null Het
Cct6b A G 11: 82,610,270 (GRCm39) probably benign Het
Cd101 A C 3: 100,927,970 (GRCm39) I37S probably damaging Het
Ces1a T C 8: 93,771,740 (GRCm39) H19R probably benign Het
Clec16a A G 16: 10,456,649 (GRCm39) probably null Het
Cntnap1 T C 11: 101,074,822 (GRCm39) F831S probably benign Het
Col24a1 A G 3: 145,020,489 (GRCm39) T287A possibly damaging Het
Colgalt2 C T 1: 152,347,564 (GRCm39) probably benign Het
Cpd A G 11: 76,693,171 (GRCm39) probably benign Het
Cyp3a16 C A 5: 145,392,790 (GRCm39) M145I probably benign Het
Ddx54 T A 5: 120,757,719 (GRCm39) probably benign Het
Dock7 A T 4: 98,833,426 (GRCm39) L1925Q probably damaging Het
Eif4g1 A T 16: 20,494,544 (GRCm39) Y127F probably damaging Het
Erap1 T A 13: 74,808,444 (GRCm39) V52E probably damaging Het
Fbxo6 G T 4: 148,230,632 (GRCm39) T210N probably damaging Het
Fcgbpl1 C T 7: 27,858,803 (GRCm39) H2308Y probably benign Het
Garre1 T C 7: 33,939,222 (GRCm39) T222A probably damaging Het
Ift22 T A 5: 136,940,145 (GRCm39) probably null Het
Igkv4-71 A G 6: 69,220,171 (GRCm39) C109R probably damaging Het
Igsf10 A G 3: 59,236,296 (GRCm39) L1295P probably benign Het
Itga4 T C 2: 79,155,983 (GRCm39) I983T probably benign Het
Lhcgr A T 17: 89,079,491 (GRCm39) V65D probably damaging Het
Mau2 G C 8: 70,495,082 (GRCm39) T85R probably damaging Het
Morc2a T C 11: 3,631,809 (GRCm39) probably null Het
Morc2b A T 17: 33,356,812 (GRCm39) M320K probably benign Het
Ms4a18 C A 19: 10,991,065 (GRCm39) V10F probably damaging Het
Mstn A T 1: 53,103,284 (GRCm39) I207F probably benign Het
Mtor A G 4: 148,553,837 (GRCm39) E812G possibly damaging Het
Myo1h A G 5: 114,457,852 (GRCm39) Y121C probably damaging Het
Or11g27 T C 14: 50,771,381 (GRCm39) S171P probably benign Het
Or4a66 A C 2: 88,531,115 (GRCm39) V186G possibly damaging Het
Or8b53 A T 9: 38,667,041 (GRCm39) D19V possibly damaging Het
Plcd3 G A 11: 102,968,632 (GRCm39) T353M probably damaging Het
Pnpla7 T A 2: 24,942,313 (GRCm39) probably null Het
Ppp1r12b T A 1: 134,705,060 (GRCm39) Y876F probably damaging Het
Prelid2 T A 18: 42,084,245 (GRCm39) probably benign Het
Prickle1 A G 15: 93,398,662 (GRCm39) L722P probably benign Het
Prr12 A G 7: 44,680,093 (GRCm39) L1887P unknown Het
Ptk2b A G 14: 66,409,593 (GRCm39) L481P probably damaging Het
Rgl3 T A 9: 21,887,140 (GRCm39) K531* probably null Het
Sacs A G 14: 61,421,407 (GRCm39) I115V probably damaging Het
Septin3 G T 15: 82,167,966 (GRCm39) probably benign Het
Simc1 T C 13: 54,673,160 (GRCm39) S503P probably benign Het
Stard9 T C 2: 120,529,404 (GRCm39) V1887A probably benign Het
Synj2 T A 17: 6,088,230 (GRCm39) L1427* probably null Het
Taar2 A G 10: 23,816,793 (GRCm39) D111G probably damaging Het
Tlr5 A G 1: 182,801,716 (GRCm39) N340S probably damaging Het
Tmco2 A G 4: 120,966,314 (GRCm39) L14P probably damaging Het
Tnik A T 3: 28,679,367 (GRCm39) D746V possibly damaging Het
Trip11 C A 12: 101,850,777 (GRCm39) E811* probably null Het
Ttll9 T C 2: 152,815,526 (GRCm39) probably null Het
Uchl1 A G 5: 66,839,824 (GRCm39) E122G probably benign Het
Vwa3b C A 1: 37,203,566 (GRCm39) probably benign Het
Zan T C 5: 137,452,482 (GRCm39) N1533S unknown Het
Zfp687 G T 3: 94,917,719 (GRCm39) D684E probably damaging Het
Other mutations in Gnat3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00941:Gnat3 APN 5 18,208,749 (GRCm39) splice site probably benign
IGL01023:Gnat3 APN 5 18,208,826 (GRCm39) missense probably damaging 1.00
IGL01997:Gnat3 APN 5 18,204,721 (GRCm39) nonsense probably null
PIT4377001:Gnat3 UTSW 5 18,220,557 (GRCm39) missense
R1624:Gnat3 UTSW 5 18,208,841 (GRCm39) missense possibly damaging 0.66
R1934:Gnat3 UTSW 5 18,224,508 (GRCm39) missense possibly damaging 0.74
R2319:Gnat3 UTSW 5 18,224,624 (GRCm39) missense probably benign 0.17
R3928:Gnat3 UTSW 5 18,208,892 (GRCm39) splice site probably benign
R4169:Gnat3 UTSW 5 18,208,862 (GRCm39) missense probably damaging 1.00
R4420:Gnat3 UTSW 5 18,204,799 (GRCm39) missense probably damaging 1.00
R4632:Gnat3 UTSW 5 18,220,364 (GRCm39) splice site probably null
R4651:Gnat3 UTSW 5 18,220,568 (GRCm39) missense probably damaging 1.00
R4652:Gnat3 UTSW 5 18,220,568 (GRCm39) missense probably damaging 1.00
R5471:Gnat3 UTSW 5 18,196,322 (GRCm39) missense probably damaging 1.00
R7460:Gnat3 UTSW 5 18,204,656 (GRCm39) missense
R7627:Gnat3 UTSW 5 18,204,746 (GRCm39) missense
R7637:Gnat3 UTSW 5 18,208,770 (GRCm39) missense
R8342:Gnat3 UTSW 5 18,208,838 (GRCm39) missense
R8428:Gnat3 UTSW 5 18,220,312 (GRCm39) missense possibly damaging 0.89
X0064:Gnat3 UTSW 5 18,208,838 (GRCm39) missense possibly damaging 0.74
Z1088:Gnat3 UTSW 5 18,220,321 (GRCm39) missense probably damaging 1.00
Z1177:Gnat3 UTSW 5 18,220,311 (GRCm39) nonsense probably null
Predicted Primers PCR Primer
(F):5'- CCGACCTTGGACACATTGACTTTGAAA -3'
(R):5'- GGCACCCTAATTGAAGAGCTGATGAC -3'

Sequencing Primer
(F):5'- CAACTTGTTGGTGCTATTTATAGCC -3'
(R):5'- TCCTGATATATGTGACACCACAG -3'
Posted On 2013-06-11