Catalog Number: 3426
Biological Activity
Potent and selective melanocortin MC4 receptor antagonist (IC50 values are 0.5 and 44.9 nM at MC4 and MC3 respectively) that antagonizes the effects of α-MSH. Suppresses thyrotropin-releasing hormone (TRH) release, attenuates food intake and reduces formalin-induced pain in vivo.
Technical Data
  • M.Wt:
    1506.72
  • Formula:
    C69H91N19O16S2
  • Sequence:
    XEHXRWGCPPKD

    (Modifications: Disulfide bridge between 1 - 8, X-1 = Mpr, X-4 = D-2-Nal, Asp-12 = C-terminal amide)

  • Solubility:
    Soluble to 1 mg/ml in water
  • Storage:
    Store at -20°C
  • CAS No:
    436083-30-6
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis. All Tocris products are intended for laboratory research use only.
Background References
  1. Effects of melanocortin receptor ligands on thyrotropin-releasing hormone release: evidence for the differential roles of melanocortin 3 and 4 receptors.
    Kim et al.
    J.Neuroendocrinol., 2002;14:276
  2. Melanocortin receptor agonists and antagonists modulate nociceptive sensitivity in the mouse formalin test.
    Bellasio et al.
    Eur.J.Pharmacol., 2003;482:127
  3. Evidence for an interaction between CB1 cannabinoid and melanocortin MCR-4 receptors in regulating food intake.
    Verty et al.
    Endocrinology, 2004;145:3224

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