Summary
Melanotan II is a synthetic cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone (alpha-MSH). It is studied in literature on the melanocortin receptor family, pigmentation pathways, and broader melanocortin-system pharmacology.
Overview
Melanotan II was designed as a structurally stable analog of alpha-MSH with broad agonist activity across the melanocortin receptor family (MC1R through MC5R). It is one of the foundational reference compounds in melanocortin-pharmacology literature.
Research Background
Melanotan II was developed by Hadley, Hruby, and Levine at the University of Arizona in the late 1980s as part of a structure-activity program on alpha-MSH analogs. The compound and its precursor Melanotan I (afamelanotide) are extensively characterized in receptor-pharmacology literature.
Mechanisms Studied
Mechanistic interest centers on its broad agonist activity across the melanocortin receptor family, the relationship between cyclic-peptide structure and receptor selectivity, and downstream signaling through the cAMP pathway following receptor activation.
Published Research Summary
Hadley and Dorr (2006) review Melanotan II and its receptor pharmacology. Sawyer et al. (1980) describe the original structure-activity work on alpha-MSH analogs. Comparative work has positioned Melanotan II alongside more selective melanocortin analogs in receptor-pharmacology literature.
Quality & Verification
For research compounds, lot-level documentation is the starting point for any analytical work. Researchers commonly examine batch-specific Certificates of Analysis, reversed-phase HPLC purity readouts, mass-spectrometry confirmation of molecular weight, and lot identification to evaluate compound identity, purity, and consistency before downstream experiments.
References & Published Research
- Hadley ME, Dorr RT — Melanocortin peptide therapeutics: historical milestones, clinical studies and commercialization
- Sawyer TK et al. — 4-Norleucine, 7-D-phenylalanine-α-melanocyte-stimulating hormone: a highly potent α-melanotropin
- Dorr RT et al. — Evaluation of melanotropic peptides as a sunless tanning approach