General Information

  • ID:  hor005204
  • Uniprot ID:  Q9PRQ9
  • Protein name:  Glucagon
  • Gene name:  gcg
  • Organism:  Lampetra fluviatilis (European river lamprey) (Petromyzon fluviatilis)
  • 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:  Lampetra (genus), Petromyzontidae (family), Petromyzontiformes (order), Hyperoartia (class), Cyclostomata, 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:  HSQGSFTSDYSKYLDSKQAKDFVIWLMNT
  • Length:  29(1-29)
  • Propeptide:  HSQGSFTSDYSKYLDSKQAKDFVIWLMNT
  • 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-Q9PRQ9-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-Q9PRQ9-F1.pdbhor005204_AF2.pdbhor005204_ESM.pdb

Physical Information

Mass: 389737 Formula: C153H226N38O48S
Absent amino acids: CEPR Common amino acids: S
pI: 7.53 Basic residues: 4
Polar residues: 11 Hydrophobic residues: 8
Hydrophobicity: -67.59 Boman Index: -5542
Half-Life: 3.5 hour Half-Life Yeast: 10 min
Half-Life E.Coli: >10 hour Aliphatic Index 53.79
Instability Index: 2983.1 Extinction Coefficient cystines: 8480
Absorbance 280nm: 302.86

Literature

  • PubMed ID:  8575665
  • Title:  Characterization of insulin, glucagon, and somatostatin from the river lamprey, Lampetra fluviatilis.