rs1805006

This is a variant in the MC1R gene that changes a aspartate to an glutamate.

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GWAS Catalog Trait Associations (2)

Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.

hair color

Morgan MD et al. “Genome-wide study of hair colour in UK Biobank explains most of the SNP heritability.” Nature Communications 9(1):5271 (2018)

Allele T

OR 22.55

p 2.0e-308

N 299,651

Major Consortium StudyLarge GWAS

European

skin pigmentation

Vollenbrock CE et al. “Genome-wide association study identifies novel loci associated with skin autofluorescence in individuals without diabetes.” Bmc Genomics 23(1):840 (2022)

Allele A

OR 0.02

p 3.0e-19

N 27,254

Large GWAS

European

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ClinVar annotation

Pathogenic★★★☆

9 submitters3 publications

Melanoma, cutaneous malignant, susceptibility to, 5

View on ClinVar →

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Research that mentions this SNP (1)

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Model-based prediction of human hair color using DNA variants

AssociationN=385Wojciech Branicki et al.(2011)· Human Genetics

This study demonstrates that human hair color can be predicted from DNA variants with high accuracy using a multinomial logistic regression model. A subset of 13 genetic markers from 11 genes (MC1R, HERC2, IRF4, TYR, EXOC2, SLC45A2, TYRP1, OCA2, SLC24A4, KITLG, ASIP) predicted hair color categories in Polish Europeans with AUC values of 0.93 for red hair, 0.87 for black hair, 0.82 for brown hair, and 0.81 for blond hair. MC1R variants showed the strongest association with red hair (OR=12.64 for R variants, P=2.5×10⁻¹⁷), while rs12913832 in HERC2 was significantly associated with darker hair colors (OR=3.33 for black, P=4.3×10⁻⁶).

Traits studied:Auburn hairBlack hairBlond hairBlond-red hairBrown hairDark-blond hairHair colorRed hair

PubMed DOI Metascience Observatory

About MC1R

This intronless gene encodes the receptor protein for melanocyte-stimulating hormone (MSH). The encoded protein, a seven pass transmembrane G protein coupled receptor, controls melanogenesis. Two types of melanin exist: red pheomelanin and black eumelanin. Gene mutations that lead to a loss in function are associated with increased pheomelanin production, which leads to lighter skin and hair color. Eumelanin is photoprotective but pheomelanin may contribute to UV-induced skin damage by generating free radicals upon UV radiation. Binding of MSH to its receptor activates the receptor and stimulates eumelanin synthesis. This receptor is a major determining factor in sun sensitivity and is a genetic risk factor for melanoma and non-melanoma skin cancer. Over 30 variant alleles have been identified which correlate with skin and hair color, providing evidence that this gene is an important component in determining normal human pigment variation. [provided by RefSeq, Jul 2008]