General Information

  • ID:  hor005206
  • Uniprot ID:  P0C235
  • Protein name:  Glucagon
  • Gene name:  gcg
  • Organism:  Polypterus senegalus (Senegal bichir)
  • Family:  Glucagon family
  • Source:  Animal
  • Expression:  Produced in the A cells of the islets of Langerhans in response to a drop in blood sugar concentration.
  • Disease:  NA
  • Comments:  NA
  • Taxonomy:  Polypterus (genus), Polypteridae (family), Polypteriformes (order), Cladistia (class), Actinopterygii (superclass), Euteleostomi, Teleostomi, Gnathostomata, Vertebrata, Craniata (subphylum), Chordata (phylum), Deuterostomia, Bilateria, Eumetazoa, Metazoa (kingdom), Opisthokonta, Eukaryota (superkingdom), cellular organisms
  • GO MF:  GO:0005179 hormone activity
  • GO BP:  GO:0007165 signal transduction; GO:0050896 response to stimulus
  • GO CC:  GO:0005576 extracellular region

Sequence Information

  • Sequence:  HSQGTFTNDYTKYQDSRRAQDFVQWLMSN
  • Length:  29(1-29)
  • Propeptide:  HSQGTFTNDYTKYQDSRRAQDFVQWLMSN
  • Signal peptide:  NA
  • Modification:  NA
  • Glycosylation:  NA
  • Mutagenesis:  NA

Activity

  • Function:  Glucagon plays a key role in glucose metabolism and homeostasis. Regulates blood glucose by increasing gluconeogenesis and decreasing glycolysis.
  • Mechanism:  NA
  • Cross BBB:  NA
  • Target:  NA
  • Target Unid:   NA
  • IC50:  NA
  • EC50:  NA
  • ED50:  NA
  • Kd:  NA
  • Half life:  NA

Structure

  • Disulfide bond:  NA
  • Structure ID:  AF-P0C235-F1(AlphaFold_DB_ID)

  • Structure: (PDB_ID-from https://www.rcsb.org/; AlphaFold_DB_ID-from https://alphafold.ebi.ac.uk/; hordbxxxxxx_AF2.pdb was predicted structure by AlphaFold2; hordbxxxxxx_ESM.pdb was predicted structure by ESMFold)
    •    AF-P0C235-F1.pdbhor005206_AF2.pdbhor005206_ESM.pdb

Physical Information

Mass: 402439 Formula: C153H223N45O50S
Absent amino acids: CEIP Common amino acids: Q
pI: 7.54 Basic residues: 4
Polar residues: 11 Hydrophobic residues: 6
Hydrophobicity: -133.45 Boman Index: -9749
Half-Life / Aliphatic Index: 3.5 hour Aliphatic Index: 26.9
Instability Index: 7263.79 Extinction Coefficient cystines: 8480
Absorbance 280nm: 302.86

Literature

  • PubMed ID:  9446726
  • Title:  Purification and structural characterization of insulin and glucagon from the bichir Polypterus senegalis (Actinopterygii: Polypteriformes).