General Information

  • ID:  hor005905
  • Uniprot ID:  O93464
  • Protein name:  Cholecystokinin-26
  • Gene name:  cck
  • Organism:  Carassius auratus (Goldfish)
  • Family:  Gastrin/cholecystokinin family
  • Source:  Animal
  • Expression:  By lipopolysaccharide (LPS); in hypothalamus. |Expression in the brain shows variation throughout the seasonal sexual cycle; in the optic tectum-thalamus of females, expression levels are lower in early gonadal recrudescence (October) compared to other se
  • Disease:  NA
  • Comments:  NA
  • Taxonomy:   Carassius (genus), Cyprininae (subfamily), Cyprinidae (family), Cyprinoidei (suborder), Cypriniformes (order), Cypriniphysae (superorder), Otophysi , Ostariophysi (subcohort), Otomorpha (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:0005184 neuropeptide hormone activity
  • GO BP:  GO:0007165 signal transduction; GO:0007586 digestion; GO:0007631 feeding behavior; GO:0030072 peptide hormone secretion; GO:0030252 growth hormone secretion
  • GO CC:  GO:0005576 extracellular region

Sequence Information

  • Sequence:  SPSPKSKSMGNNHRIKDRDYLGWMDF
  • Length:  26(86-111)
  • Propeptide:  MNAGICVCVLLAALSTSSCLSLPAVSEDGGQSDLGIVMEHTRHTRAAPSSGQLSLLSKAEDDEEPRSSLTELLARIISTKGTYRRSPSPKSKSMGNNHRIKDRDYLGWMDFGRRSAEEYEYSS
  • Signal peptide:  MNAGICVCVLLAALSTSSC
  • Modification:  T20 Sulfotyrosine;T26 Phenylalanine amide
  • Glycosylation:  NA
  • Mutagenesis:  NA

Activity

  • Function:  This peptide hormone induces gall bladder contraction and the release of pancreatic enzymes in the gut (By similarity). Induces the secretion of gonadotropin and growth hormone from the pituitary. Suppresses food intake and decreases the expression of pre
  • 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-O93464-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)
  •    hor005905_AF2.pdbhor005905_ESM.pdb

Physical Information

Mass: 351353 Formula: C133H204N40O40S2
Absent amino acids: ACEQTV Common amino acids: S
pI: 10.11 Basic residues: 6
Polar residues: 9 Hydrophobic residues: 4
Hydrophobicity: -138.08 Boman Index: -8260
Half-Life: 1.9 hour Half-Life Yeast: >20 hour
Half-Life E.Coli: >10 hour Aliphatic Index 30
Instability Index: 5234.62 Extinction Coefficient cystines: 6990
Absorbance 280nm: 279.6

Literature

  • PubMed ID:  9493851
  • Title:  Molecular cloning and expression of cDNA encoding brain preprocholecystokinin in goldfish.
  • PubMed ID:  8262360
  • Title:  CCK/gastrin-like immunoreactivity in the goldfish pituitary: regulation of pituitary hormone secretion by CCK-like peptides in vitro.
  • PubMed ID:  8092330
  • Title:  CCK/gastrin-like immunoreact
  • PubMed ID:  10640690
  • Title:  
  • PubMed ID:  12124755
  • Title:  
  • PubMed ID:  14751584
  • Title:  
  • PubMed ID:  15256279
  • Title: