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Reports
Submitted on July 5, 2007 A Melanocortin 1 Receptor Allele Suggests Varying Pigmentation Among Neanderthals *, ,
1 Departament de Biologia Animal, Universitat de Barcelona, Spain. * To whom correspondence should be addressed.
The melanocortin 1 receptor (MC1R) regulates pigmentation in humans and other vertebrates. Variants of MC1R with reduced function are associated with pale skin color and red hair in humans primarily of European origin. We amplified and sequenced a fragment of the MC1R gene (mc1r) from two Neanderthal remains. Both specimens have a mutation not found in ~3,700 modern humans. Functional analyses show that this variant reduces MC1R activity to a level that alters hair and/or skin pigmentation in humans. The impaired activity of this variant suggests that Neanderthals varied in pigmentation levels, potentially to the scale observed in modern humans. Our data suggest that inactive MC1R variants evolved independently in both modern humans and Neanderthals.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)