Melanocortin 1

The melanocortin 1 receptor (also known as melanocyte-stimulating hormone receptor or Mc1r) is one of the key proteins in regulating hair and skin color. A member of the G-protein-coupled receptor family of proteins, it functions at the surface of specialist pigment producing cells (called melanocytes) to regulate melanogenesis in mammals.

Professor Jonathan Rees - Edinburgh University - said: "Our work suggests that the first human redheads walked this earth 50,000 years ago and then spread throughout northern Europe." Melanocortin 1 was the last genetic evolution of the Human race. An improvement on the other genetic variants.

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