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

Figure 1.

Figure 1

Endogenous ligands for melanocortin receptors. (A) Schematic diagram of POMC and sequences of four agonists; (B) sequences of two antagonists. The HFRW motif is shown in blue. The RFF motif is highlighted in red.