UniProt:P47871 GCGR

chain
  • signal peptide:1-25
  • chain:26-477
checksum ADBB477C6267AE6E
comment
  • FUNCTION G-protein coupled receptor for glucagon that plays a central role in the regulation of blood glucose levels and glucose homeostasis. Regulates the rate of hepatic glucose production by promoting glycogen hydrolysis and gluconeogenesis. Plays an important role in mediating the responses to fasting. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase (PubMed:32193322, PubMed:38346960). Promotes activation of adenylate cyclase. Besides, plays a role in signaling via a phosphatidylinositol-calcium second messenger system.SUBUNIT Interacts with glucagon (PubMed:32193322). Interacts with GNAS (PubMed:32193322, PubMed:38346960). Interacts with GNAI1 (PubMed:32193322, PubMed:38346960).SUBCELLULAR LOCATION Is rapidly internalized after ligand-binding.PTM Ligand-binding promotes phosphorylation of serine residues in the C-terminal cytoplasmic domain. Phosphorylation is important for receptor endocytosis after ligand-binding.DISEASE The disease is caused by variants affecting the gene represented in this entry.MISCELLANEOUS Selective recognition of glucagon over glucagon-like peptide is determined by residues located at the N-terminal end of the glucagon peptide.SIMILARITY Belongs to the G-protein coupled receptor 2 family.
crossReference
databaseName UniProt
dbId 55732
description
  • recommendedName: Glucagon receptor shortName: GL-R
displayName UniProt:P47871 GCGR
geneName
  • GCGR
identifier P47871
isSequenceChanged false
keyword
  • 3D-structure
  • Cell membrane
  • Diabetes mellitus
  • Disease variant
  • Disulfide bond
  • G-protein coupled receptor
  • Glycoprotein
  • Membrane
  • Phosphoprotein
  • Proteomics identification
  • Receptor
  • Reference proteome
  • Signal
  • Transducer
  • Transmembrane
  • Transmembrane helix
modified [InstanceEdit:9983091] Weiser, Joel, 2026-02-20
moleculeType Protein
name
  • GCGR
otherIdentifier
  • 11756776_a_at
  • 16838901
  • 210565_PM_at
  • 210565_at
  • 2642
  • 32886_at
  • 4040455
  • 4040456
  • 4040457
  • 4040458
  • 4040459
  • 4040460
  • 4040461
  • 4040462
  • 4040463
  • 4040464
  • 4040465
  • 4040466
  • 4040467
  • 4040468
  • 4040469
  • 4040470
  • 4040471
  • 4040472
  • 4040473
  • 4040474
  • 4040475
  • 4040476
  • 4040477
  • 4040478
  • 4040479
  • 4040480
  • 4040481
  • 4040482
  • 8019669
  • A_14_P112038
  • A_23_P15751
  • A_33_P3409467
  • GE62703
  • GO:0004888
  • GO:0004930
  • GO:0004967
  • GO:0005085
  • GO:0005886
  • GO:0006091
  • GO:0007165
  • GO:0007166
  • GO:0007186
  • GO:0007188
  • GO:0007189
  • GO:0007584
  • GO:0008217
  • GO:0009267
  • GO:0010628
  • GO:0016020
  • GO:0017046
  • GO:0038023
  • GO:0042593
  • GO:0042594
  • GO:0070873
  • GO:0071377
  • HMNXSV003002082
  • ILMN_1725311
  • L20316_at
  • PH_hs_0027517
  • TC17000937.hg
  • g439689_3p_at
physicalEntity
referenceDatabase [ReferenceDatabase:2] UniProt
referenceGene
referenceTranscript
schemaClass ReferenceGeneProduct
secondaryIdentifier
  • GLR_HUMAN
  • Q2M3M5
sequenceLength 477
species [Species:48887] Homo sapiens
stId uniprot:P47871
url http://purl.uniprot.org/uniprot/P47871
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