Interactive

Receptor–ligand explorer

Which melanocortin acts on which receptor — and what happens when it does. Select any ligand or receptor to trace the interactions across the system.

• Agonist
• Partial / weaker
• Antagonist
• Inverse agonist
• No notable activity

Activity profiles are simplified for clarity; where selectivity is approximate, weaker activity is shown as “partial.” For education, not medical advice — see the editorial standards. Receptor detail draws on the receptor pages.