Melanocortins are a group of pituitary peptide hormones that include corticotropin (ACTH) and the alpha, beta and gamma melanocyte-stimulating hormones (MSH) derived from the prohormone proopiomelanocortin (Takahashi H et al, 1981). Melanocortins can act through multiple melanocortin receptors (MC1R-MC5R) (Mountjoy KG et al, 1992). The majority of melanocortin receptors (MC1R, MC3R, MC4R and MC5R) are semi-selective in their ability to bind multiple melanocortins (MSH and ACTH). MSH regulates pigmentation.
Robbins, LS, Cone, RD, Mortrud, MT, Mountjoy, KG
Numa, S, Nakanishi, S, Takahashi, H, Teranishi, Y
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