General Information

  • ID:  hor004888
  • Uniprot ID:  P80027
  • Protein name:  Cephalotocin
  • Gene name:  NA
  • Organism:  Octopus vulgaris (Common octopus)
  • Family:  Vasopressin/oxytocin family
  • Source:  Animal
  • Expression:  NA
  • Disease:  NA
  • Comments:  NA
  • Taxonomy:  Octopus (genus), Octopodidae (family), Incirrata (suborder), Octopoda (order), Octopodiformes (superorder), Coleoidea (subclass), Cephalopoda (class), Mollusca (phylum), Lophotrochozoa, Spiralia, Protostomia, Bilateria, Eumetazoa, Metazoa (kingdom), Opisthokonta, Eukaryota (superkingdom), cellular organisms
  • GO MF:  GO:0005179 hormone activity; GO:0005185 neurohypophyseal hormone activity
  • GO BP:  GO:0007165 signal transduction
  • GO CC:  GO:0005576 extracellular region

Sequence Information

  • Sequence:  CYFRNCPIG
  • Length:  9(1-9)
  • Propeptide:  CYFRNCPIG
  • Signal peptide:  NA
  • Modification:  T9 Glycine amide
  • Glycosylation:  NA
  • Mutagenesis:  NA

Activity

  • Function:  Has a role in the neurosecretory system of the vena cava.
  • Mechanism:  NA
  • Cross BBB:  NO
  • Target:  NA
  • Target Unid:  NA
  • IC50: NA
  • EC50: NA
  • ED50: NA
  • kd: NA
  • Half life: NA

Structure

  • Disulfide bond:  45663
  • Structure ID:  NA

  • 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)
    •    hor004888_AF2.pdbhor004888_ESM.pdb

Physical Information

Mass: 121514 Formula: C47H69N13O12S2
Absent amino acids: ADEHKLMQSTVW Common amino acids: C
pI: 8.22 Basic residues: 1
Polar residues: 5 Hydrophobic residues: 2
Hydrophobicity: 11.11 Boman Index: -1030
Half-Life: 1.2 hour Half-Life Yeast: >20 hour
Half-Life E.Coli: >10 hour Aliphatic Index 43.33
Instability Index: 4080 Extinction Coefficient cystines: 1615
Absorbance 280nm: 201.88

Literature

  • PubMed ID:  1589145
  • Title:  A new peptide of the oxytocin/vasopressin family isolated from nerves of the cephalopod Octopus vulgaris.