rs16891982
A SNP in the SLC45A2 gene on chromosome 5. Its most notable genotype is C;G: if European, 7x more likely to have black hair
- Gene
- SLC45A2
- Location
- Chr 533,951,588 (GRCh38)
- Highest magnitude
- 2.0Worth knowing
- Tested on
- 23andMe, AncestryDNA
- Minor allele frequency
- 44%
Genotypes
As shown in 23andMe and AncestryDNA files.
- C;CGoodgenerally non-European, but if European, 7x more likely to have black hair
- C;GMost notableNot ratedif European, 7x more likely to have black hair
- G;GNot ratedGenerally European; Light skin; Possibly an increased risk of melanoma
On SNPedia: (C;C), (C;G), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Frequency
Share of each genotype in 4 HapMap populations.
- AverageC;C 74% C;G 1% G;G 24%
- European ancestry (Utah)C;C 0% C;G 3% G;G 97%
- Han Chinese (Beijing)C;C 98% C;G 2% G;G 0%
- Japanese (Tokyo)C;C 100% C;G 0% G;G 0%
- Yoruba (Nigeria)C;C 100% C;G 0% G;G 0%
Related
Notes
From SNPedia
Show notes, about 460 words
This snp influences skin pigmentation. The allele p.L374F indicates light-skinned european ancestry c.1122C>G, p.Phe374Leu (NCBI dbSNP rs16891982) in SLC45A2 was associated with protection from malignant melanoma (OR, 0.41; 95% CI, 0.24-0.70; P=0.008 after adjustment for multiple testing) An association study conducted on a population of European origin concluded that the rare (in Europeans, at least) allele L374, i.e. rs16891982(C) in dbSNP orientation, significantly increases the possibility of having black hair color, with an odds ratio of around 7. This population-based case-control study investigated a number of pigmentation-related SNPs and their correlation with cutaneous malignant melanoma (CMM) in an Australian population. rs16891982 (variant F374L) was found to be associated with odds ratios of 3.44, 2.86, 1.68, and 1.68 for all study subjects (1,738 CMM cases and 4,517 controls), subjects with northern European ancestry (1,438 cases and 3,098 controls), northern European subjects adjusted for hair, eye, and skin colour, and northern European subjects adjusted for the MC1R genotype, respectively (p<0.001 for all). A genome-wide association study identifies novel alleles associated with hair color and skin pigmentation. Genome-wide association study of tanning phenotype in a population of European ancestry. Genetic variants in pigmentation genes, pigmentary phenotypes, and risk of skin cancer in Caucasians. Haplotypes in SLC24A5 Gene as Ancestry Informative Markers in Different Populations. Ancestry analysis in the 11-M Madrid bomb attack investigation. Genetic determinants of hair and eye colours in the Scottish and Danish populations. Digital quantification of human eye color highlights genetic association of three new loci. Spectrum of candidate gene mutations associated with Indian familial oculocutaneous and ocular albinism. Genetic analysis of the SNPforID 34-plex ancestry informative SNP panel in Tunisian and Libyan populations. Squamous Cell Carcinoma
G;G
This SNP is associated with skin, hair, and eye colour, and risk of melanoma. Individuals with the G;G genotype are generally of European descent and have fair skin. In a population-based case-control study investigating a number of pigmentation-related SNPs and their correlation with cutaneous malignant melanoma (CMM) in a Caucasian Australian population, rs16891982 (variant F374L) was found to be associated with odds ratios of 3.44, 2.86, 1.68, and 1.68 for all study subjects (1,738 CMM cases and 4,517 controls); subjects with northern European ancestry (1,438 cases and 3,098 controls); northern European subjects adjusted for hair, eye, and skin colour; and northern European subjects adjusted for the MC1R genotype, respectively (p<0.001 for all).
Source and license
Adapted from rs16891982 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.
SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.