| Nomenclature | MCH1 receptor | MCH2 receptor |
| HGNC, UniProt | MCHR1, Q99705 | MCHR2, Q969V1 |
| Rank order of potency | melanin‐concentrating hormone (PMCH, P20382) >MCH (salmon) | melanin‐concentrating hormone (PMCH, P20382) = MCH (salmon) [753] |
| Selective antagonists | GW803430 (pIC50 9.3) [745], SNAP‐7941 (pA2 9.2) [186], T‐226296 (pIC50 8.3) [1853], ATC0175 (pIC50 7.9–8.1) [283] | – |
| Labelled ligands | [125I]S36057 (Antagonist) (pK d 9.2–9.5) [66], [125I][Phe13,Tyr19]MCH (Agonist) (pK d 9.2) [242], [3H]MCH (human, mouse, rat) (Agonist) [242] | – |
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