General information

• PepLab ID

  PL327

• Sequence

  SRYPSY

• Chemical formula

  C₃₅H₄₉N₉O₁₁

Biological activity

• Main activity

  Opioid

• Other activities

  None

Source organism

• Source group

  Animal

• Organism

  Bovine (casoxin fr.33-38 of kappa-casein) 

Physicochemical properties

• Three-leter formula

  NH₂ - Ser - Arg - Tyr - Pro - Ser - Tyr - COOH

• Amino acid residues

  6

• Molecular Weight (Da)

  771.83

• Isoelectric Point (pI)

  9.41

• IC₅₀ (μM)

• Hydrophobicity index (GRAVY)

  -1.7167

• Aliphatic index

  0

• Boman index

  3.6667