| abstract |
A physiologically active peptide having the amino acid sequence represented by the following general formula (I): A-W¹-X-V¹-Z-W²-Y¹-V²-Y²-B, wherein A and/or B contains a Cys residue that is modified and/or forms a disulfide linkage. A represents a peptide composed by one to six amino acid residues; B represents a peptide composed of one to three amino acid residues; W¹ and W² represent each independently Ser or Thr; X represents Lys or Arg; V¹ and V² represent each independently Ser, Arg, Thr, Tyr, Phe or Lys; Y¹ and Y² represent each independently Phe, Tyr or Trp; and Z represents Leu, Val, Ile, Pro, Phe or Ala. |