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Dictionary of Cancer Terms

View in Spanish: MC1R

A protein found in skin and eye cells that make melanin (a pigment that gives color to the skin and helps protect it from damage by ultraviolet light). People with certain changes in the gene for MC1R have a higher risk of developing melanoma (skin cancer that begins in melanocytes). Also called melanocortin 1 receptor and melanotropin receptor.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.