Incidental Mutation 'N/A:Glp1r'
ID 45
Institutional Source Beutler Lab
Gene Symbol Glp1r
Ensembl Gene ENSMUSG00000024027
Gene Name glucagon-like peptide 1 receptor
Synonyms GLP-1R, GLP1Rc
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # N/A of strain 294
Quality Score
Status Validated
Chromosome 17
Chromosomal Location 31120841-31155484 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 31150257 bp (GRCm39)
Zygosity Homozygous
Amino Acid Change Phenylalanine to Serine at position 393 (F393S)
Ref Sequence ENSEMBL: ENSMUSP00000110221 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000114574]
AlphaFold O35659
Predicted Effect probably damaging
Transcript: ENSMUST00000114574
AA Change: F393S

PolyPhen 2 Score 0.978 (Sensitivity: 0.76; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000110221
Gene: ENSMUSG00000024027
AA Change: F393S

DomainStartEndE-ValueType
signal peptide 1 21 N/A INTRINSIC
HormR 58 135 9.88e-27 SMART
Pfam:7tm_2 141 398 7.4e-82 PFAM
low complexity region 440 456 N/A INTRINSIC
Meta Mutation Damage Score 0.9155 question?
Coding Region Coverage
  • 1x: 88.7%
  • 3x: 76.0%
Validation Efficiency 91% (106/116)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a 7-transmembrane protein that functions as a receptor for glucagon-like peptide 1 (GLP-1) hormone, which stimulates glucose-induced insulin secretion. This receptor, which functions at the cell surface, becomes internalized in response to GLP-1 and GLP-1 analogs, and it plays an important role in the signaling cascades leading to insulin secretion. It also displays neuroprotective effects in animal models. Polymorphisms in this gene are associated with diabetes. The protein is an important drug target for the treatment of type 2 diabetes and stroke. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Apr 2016]
PHENOTYPE: Glucose tolerance and pancreatic secretion is impaired in homozygous null mice. [provided by MGI curators]
Allele List at MGI

All alleles(1) : Targeted, knock-out(1)

Other mutations in this stock
Total: 18 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700016P04Rik T A 6: 13,415,772 (GRCm39) noncoding transcript Homo
Aif1 A G 17: 35,391,496 (GRCm39) L7S possibly damaging Homo
Ankrd26 T C 6: 118,506,535 (GRCm39) D646G probably benign Homo
Cacna1s A G 1: 136,001,247 (GRCm39) I233V probably benign Homo
Cfap92 A T 6: 87,667,773 (GRCm39) noncoding transcript Homo
Chchd4 T C 6: 91,442,187 (GRCm39) Y77C probably damaging Homo
Crocc G A 4: 140,749,057 (GRCm39) R1419C probably damaging Homo
Cyp4f39 A C 17: 32,687,655 (GRCm39) M74L probably benign Homo
Fgf9 C A 14: 58,327,421 (GRCm39) probably benign Homo
Gimap6 T C 6: 48,679,349 (GRCm39) D229G probably damaging Homo
Lrrc7 T G 3: 157,865,977 (GRCm39) I1255L probably benign Homo
Mtrr C A 13: 68,723,516 (GRCm39) probably benign Homo
Pde6b A T 5: 108,576,969 (GRCm39) probably benign Homo
Rbm19 A T 5: 120,282,162 (GRCm39) I840F probably damaging Homo
Serpina3c A C 12: 104,115,864 (GRCm39) S227A probably benign Homo
Spag17 G A 3: 99,889,570 (GRCm39) probably benign Homo
Spmip3 G A 1: 177,561,100 (GRCm39) R13H probably damaging Homo
Zbtb8b T C 4: 129,326,361 (GRCm39) D268G probably benign Homo
Other mutations in Glp1r
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00158:Glp1r APN 17 31,120,891 (GRCm39) missense possibly damaging 0.96
IGL00516:Glp1r APN 17 31,144,532 (GRCm39) missense probably damaging 1.00
IGL00653:Glp1r APN 17 31,149,734 (GRCm39) missense probably damaging 1.00
IGL00917:Glp1r APN 17 31,138,443 (GRCm39) splice site probably benign
IGL02005:Glp1r APN 17 31,143,585 (GRCm39) missense probably benign 0.03
IGL02411:Glp1r APN 17 31,143,485 (GRCm39) missense probably damaging 1.00
IGL02889:Glp1r APN 17 31,150,118 (GRCm39) splice site probably benign
IGL02928:Glp1r APN 17 31,137,911 (GRCm39) missense probably benign 0.00
R0135:Glp1r UTSW 17 31,143,551 (GRCm39) missense probably benign 0.00
R0395:Glp1r UTSW 17 31,155,312 (GRCm39) missense probably benign 0.34
R0481:Glp1r UTSW 17 31,150,191 (GRCm39) missense probably benign 0.03
R0602:Glp1r UTSW 17 31,128,201 (GRCm39) missense probably benign 0.12
R0841:Glp1r UTSW 17 31,138,406 (GRCm39) missense probably benign 0.01
R1145:Glp1r UTSW 17 31,138,406 (GRCm39) missense probably benign 0.01
R1145:Glp1r UTSW 17 31,138,406 (GRCm39) missense probably benign 0.01
R1232:Glp1r UTSW 17 31,137,905 (GRCm39) missense probably benign
R1804:Glp1r UTSW 17 31,149,687 (GRCm39) splice site probably null
R1846:Glp1r UTSW 17 31,148,909 (GRCm39) critical splice acceptor site probably null
R1982:Glp1r UTSW 17 31,144,601 (GRCm39) nonsense probably null
R1990:Glp1r UTSW 17 31,149,722 (GRCm39) missense possibly damaging 0.53
R2091:Glp1r UTSW 17 31,144,523 (GRCm39) missense probably damaging 0.97
R3432:Glp1r UTSW 17 31,143,531 (GRCm39) missense probably damaging 1.00
R4456:Glp1r UTSW 17 31,137,949 (GRCm39) nonsense probably null
R4488:Glp1r UTSW 17 31,137,905 (GRCm39) missense probably benign
R4610:Glp1r UTSW 17 31,150,221 (GRCm39) missense probably benign 0.03
R4884:Glp1r UTSW 17 31,155,240 (GRCm39) missense probably damaging 1.00
R5055:Glp1r UTSW 17 31,137,861 (GRCm39) missense probably benign
R6358:Glp1r UTSW 17 31,151,618 (GRCm39) missense probably benign 0.07
R6359:Glp1r UTSW 17 31,148,946 (GRCm39) missense probably damaging 1.00
R6490:Glp1r UTSW 17 31,143,546 (GRCm39) missense probably damaging 0.98
R6698:Glp1r UTSW 17 31,155,375 (GRCm39) missense probably damaging 1.00
R7063:Glp1r UTSW 17 31,144,532 (GRCm39) missense probably damaging 1.00
R7165:Glp1r UTSW 17 31,128,297 (GRCm39) missense probably benign 0.23
R7293:Glp1r UTSW 17 31,143,599 (GRCm39) missense probably benign 0.00
R7646:Glp1r UTSW 17 31,155,257 (GRCm39) missense probably benign 0.38
R7655:Glp1r UTSW 17 31,149,572 (GRCm39) critical splice donor site probably null
R7656:Glp1r UTSW 17 31,149,572 (GRCm39) critical splice donor site probably null
R7686:Glp1r UTSW 17 31,144,633 (GRCm39) missense probably damaging 1.00
R8531:Glp1r UTSW 17 31,143,531 (GRCm39) missense probably damaging 1.00
R9050:Glp1r UTSW 17 31,137,892 (GRCm39) missense probably damaging 1.00
X0064:Glp1r UTSW 17 31,138,437 (GRCm39) critical splice donor site probably null
Nature of Mutation
DNA sequencing using the SOLiD technique identified a T to C transition at position 1453 of the Glp1r transcript, in exon 13 of 13 total exons. The mutated nucleotide causes a phenylalanine to serine substitution at amino acid 393. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).
Protein Function and Prediction
The Glp1r gene encodes the 489 amino acid long Glucagon-like peptide 1 receptor (GLP-1R). This is a G-protein coupled receptor (GPCR) for glucagon-like peptide 1 (GLP-1). The GLP-1R protein contains a signal peptide at amino acids 1-21, seven transmembrane domains, and shares homology with other GPCRs. Conserved disulfide bonds are likely to be located between residues 46 and 71, 62 and 104, and 85 and 126 (Uniprot O35659). Glucose tolerance and secretion of pancreatic hormones is impaired in homozygous knockout mice. Learning and memory, regulation of heart contraction, normal stress responses, and bone resorption are also impaired in these animals.  
 
The F1453S change occurs in the seventh transmembrane domain of GLP-1R, and is predicted to be possibly damaging by the PolyPhen program.
Posted On 2009-11-10