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. 2022 Oct 1;12(10):1407. doi: 10.3390/biom12101407

Table 1.

Pharmacological properties of endogenous ligands at human melanocortin receptors.

Ligands Binding Affinity [28,29] Activity [30]
MC1R α-MSH > β-MSH > γ3-MSH > ACTH > γ1-MSH > γ2-MSH γ1-MSH > α-MSH > γ2-MSH > γ3-MSH > β-MSH
MC3R γ1-MSH > γ3-MSH > β-MSH > γ2-MSH > α-MSH > ACTH γ2-MSH > γ3-MSH > γ1-MSH > α-MSH > β-MSH
MC4R β-MSH > α-MSH > ACTH > γ1-MSH > γ3-MSH > γ2-MSH α-MSH > β-MSH > γ2-MSH > γ1-MSH > γ3-MSH
MC5R α-MSH > β-MSH > ACTH > γ1-MSH > γ2-MSH= γ3-MSH α-MSH > β-MSH > γ1-MSH > γ2-MSH > γ3-MSH