General Information

  • ID:  hor005187
  • Uniprot ID:  P81029
  • Protein name:  Somatostatin-2
  • Gene name:  sst2
  • Organism:  Oreochromis niloticus (Nile tilapia) (Tilapia nilotica)
  • Family:  Somatostatin family
  • Source:  animal
  • Expression:  NA
  • Disease:  NA
  • Comments:  NA
  • Taxonomy:  Oreochromis (genus), Oreochromini (tribe), Pseudocrenilabrinae (subfamily), African cichlids, Cichlidae (family), Cichliformes (order), Cichlomorphae (superorder), Ovalentaria, Percomorphaceae, Euacanthomorphacea, Acanthomorphata, Ctenosquamata, Eurypterygia, Neoteleostei, Euteleosteomorpha (cohort), Clupeocephala, Osteoglossocephalai, Teleostei (infraclass), Neopterygii (subclass), Actinopteri (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 CC:  GO:0005576 extracellular region

Sequence Information

  • Sequence:  SADQPNSIPPRERKAGCKNFYWKGLTSC
  • Length:  28(1-28)
  • Propeptide:  SADQPNSIPPRERKAGCKNFYWKGLTSC
  • Signal peptide:  NA
  • Modification:  NA
  • Glycosylation:  NA
  • Mutagenesis:  NA

Activity

  • Function:  Inhibits the release of somatotropin
  • Mechanism:  NA
  • Cross BBB:  NA
  • Target:  NA
  • Target Unid:  NA
  • IC50: NA
  • EC50: NA
  • ED50: NA
  • kd: NA
  • Half life: NA

Structure

  • Disulfide bond:  17-28
  • Structure ID:  AF-P81029-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-P81029-F1.pdbhor005187_AF2.pdbhor005187_ESM.pdb

Physical Information

Mass: 363633 Formula: C137H213N41O41S2
Absent amino acids: HMV Common amino acids: KPS
pI: 9.46 Basic residues: 5
Polar residues: 11 Hydrophobic residues: 6
Hydrophobicity: -105 Boman Index: -7054
Half-Life: 1.9 hour Half-Life Yeast: >20 hour
Half-Life E.Coli: >10 hour Aliphatic Index 35
Instability Index: 2750.71 Extinction Coefficient cystines: 7115
Absorbance 280nm: 263.52

Literature

  • PubMed ID:  7656183
  • Title:  Characterization of the pancreatic hormones from the Brockmann body of the tilapia: implications for islet xenograft studies.