Structure-activity relationship of linear peptide Bu-His6-DPhe7-Arg8-Trp9-Gly10-NH2 at the human melanocortin-1 and -4 receptors: DPhe7 and Trp9 substitution

Bioorg Med Chem Lett. 2003 Feb 24;13(4):649-52. doi: 10.1016/s0960-894x(02)01052-1.

Abstract

A series of pentapeptides, based on hMC4R pentapeptide agonist (Bu-His(6)-DPhe(7)-Arg(8)-Trp(9)-Gly(10)-NH(2)), was prepared in which either DPhe(7) or Trp(9) residue was systematically substituted. A number of interesting DPhe surrogates (D-Thi, D-3-CF(3)Phe, D-2-Nal and D-3,4-diClPhe) as well as Trp surrogates (2-Nal and Bta) were identified in this study.

MeSH terms

  • Amino Acid Substitution
  • Cell Line
  • Humans
  • Obesity / drug therapy
  • Oligopeptides / chemistry
  • Oligopeptides / pharmacology*
  • Receptor, Melanocortin, Type 4 / agonists*
  • Receptor, Melanocortin, Type 4 / genetics
  • Receptors, Melanocortin / agonists*
  • Receptors, Melanocortin / genetics
  • Structure-Activity Relationship
  • Transfection

Substances

  • Bu-His(6)-Phe(7)-Arg(8)-Trp(9)-Gly(10)-NH(2)
  • Oligopeptides
  • Receptor, Melanocortin, Type 4
  • Receptors, Melanocortin