OCA2 rs11674261: Understanding Your Pigmentation Genetics
The rs11674261 variant is located within the OCA2 gene, a critical region for human pigmentation. This genetic marker is associated with natural variation in skin, hair, and eye color across diverse human populations.
What each genotype means
Typical ancestral pigmentation background
You carry two copies of the ancestral G allele at rs11674261, a non-coding variant located in the OCA2 gene region. This genotype is common in African ancestries and tracks with baseline pigmentation regulation without inherited European-specific lighter pigmentation haplotypes. Evidence for any direct individual effect is limited, and this marker functions primarily as an ancestry-informative background variant rather than a diagnostic determinant.
Found in approximately 64% of individuals of African ancestry and less than 10% of European populations.
Intermediate ancestral allele carrier
You have inherited one A allele and one G allele at rs11674261 in the OCA2 region. Studies identify this variant primarily as an ancestry-informative marker showing significant allele frequency differentiation between European and African populations. Scientific evidence linking this specific single-nucleotide variant directly to noticeable individual pigmentary changes is limited, as overall skin and eye traits are governed by complex multi-gene networks.
Carried by approximately 30% to 45% of individuals across diverse global populations.
Light-pigmentation-associated ancestral background
You carry two copies of the derived A allele at rs11674261 near the OCA2 gene. In population genetics research, this genotype is part of an extended haplotype frequently observed in populations with lighter skin and eye pigmentation, particularly of European descent. However, direct functional impact on melanin synthesis remains limited in clinical evidence, and actual pigmentation traits depend on multiple interacting loci across the genome.
Observed in roughly 45% to 50% of European populations but in under 5% of African ancestries.
What is the rs11674261 Variant?
The rs11674261 variant is a single nucleotide polymorphism (SNP) located within the OCA2 gene. In genetics, a SNP represents a variation at a single position in the DNA sequence among individuals. This specific variant is part of a larger genomic region that has been extensively studied for its influence on human physical traits. Because it resides within the OCA2 gene, researchers often investigate it to understand how subtle changes in our genetic code contribute to the wide spectrum of human pigmentation. It is important to note that while this variant is a marker of interest in pigmentation studies, it is one of many thousands of variants across the human genome that influence how we look. Geneticists use such markers to map the complex architecture of human traits, though the specific functional impact of this individual SNP remains a subject of ongoing scientific inquiry.
The Role of the OCA2 Gene
The OCA2 gene, formerly known as the P gene, provides the instructions for creating the P protein. This protein is found in melanocytes, which are specialized cells responsible for producing melanin, the pigment that determines the color of our skin, hair, and eyes. The P protein is a melanosomal transmembrane protein that helps regulate the environment within melanosomes—the tiny structures where melanin is synthesized. By modulating factors like pH and ion transport, the P protein ensures that melanin production proceeds efficiently. When the OCA2 gene functions normally, it supports the standard range of human pigmentation. However, significant mutations in this gene can lead to oculocutaneous albinism, a condition characterized by a substantial reduction in melanin. In the context of common variants like rs11674261, the gene acts as a primary driver of the natural, healthy variation in pigmentation observed globally.
Research and Evidence Strength
Scientific research into the OCA2 gene has established it as a major locus for human pigmentation. Genome-wide association studies (GWAS) have consistently identified variants in and around this gene that correlate with differences in eye and skin color. However, the evidence strength for any single SNP, such as rs11674261, can be limited or context-dependent. While the OCA2 region is undeniably central to pigmentation, the specific contribution of rs11674261 is often analyzed as part of a broader haplotype or linkage disequilibrium block. This means that the variant may be inherited alongside other nearby genetic changes, making it difficult to isolate its individual effect. Current research suggests that while this variant is informative for pigmentation studies, it should not be viewed as a sole determinant of any physical trait. The scientific community continues to refine these associations, and findings often vary based on the ancestral background of the populations being studied.
Population Frequency and Ancestry
The frequency of the rs11674261 variant is highly variable depending on an individual's ancestral background. Genetic studies have shown that pigmentation-related variants in the OCA2 gene exhibit distinct geographic patterns, reflecting the evolutionary history of human populations. Because human migration and adaptation have shaped the distribution of these alleles, the prevalence of specific genotypes for rs11674261 can differ significantly between groups of African, European, Asian, and other ancestries. These differences are a natural result of human genetic diversity. Researchers use these frequency patterns to better understand how pigmentation traits have evolved and to improve the accuracy of genetic models across different ethnic groups. If you are reviewing your own genetic data, it is helpful to remember that these frequencies are population-level statistics and do not dictate individual outcomes.
What This Information Means for You
Understanding your genotype for rs11674261 offers a glimpse into the genetic factors that contribute to your physical appearance. However, it is important to maintain a balanced perspective: this information is educational and intended for personal interest rather than medical or diagnostic use. Pigmentation is a complex, polygenic trait, meaning it is influenced by the interaction of many different genes and environmental factors. Knowing your status for one specific SNP does not provide a complete picture of your traits. You cannot use this information to predict health outcomes or diagnose conditions. If you have questions about your genetic data or how it relates to your health, the best course of action is to consult with a qualified healthcare professional or a genetic counselor. They can provide context and help you understand the limitations of current genetic testing in a way that is relevant to your personal health history.
How common is this variant?
The frequency of the rs11674261 variant is highly variable by ancestry, making it a highly informative marker for studies of human pigmentation and evolutionary genetics.
Frequently asked questions
Can this variant predict my exact eye color?
No, this variant cannot predict your exact eye color. While the OCA2 gene is a major contributor to eye color, it is influenced by many other genes and environmental factors, making precise prediction from a single SNP impossible.
Is rs11674261 associated with any diseases?
This variant is primarily studied in the context of natural pigmentation variation. It is not typically associated with disease, though the OCA2 gene as a whole is linked to oculocutaneous albinism when specific, rare mutations are present.
Should I be concerned about my genotype for this SNP?
There is no reason for concern regarding your genotype for this SNP. It is a normal genetic variation that contributes to the natural diversity of human physical traits.
Where can I find more information about my genetic results?
If you have questions about your genetic results, you should consult with a healthcare provider or a certified genetic counselor. They can help you interpret your data in the context of your overall health and family history.
Sources & further reading
Educational information only, last refreshed 10/16/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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This missense variant (p.Ala486Thr) in the OCA2 gene is associated with human pigmentation traits, including eye and skin color variation.
Missense variant Arg419Gln strongly linked to intermediate eye color, blue/green iris phenotypes, and lighter pigmentation.
Pigmentation-modifying SNP modulating blue versus brown eye color penetrance and melanin deposition.
Functional non-synonymous variant (Arg419Gln) in OCA2 linked with ancestral pigmentation divergence and lighter eye/skin color.
Common missense variation (Arg305Trp) in OCA2 associated with eye color gradation and lighter skin pigmentation in European populations.
Coding variant (His615Arg) in OCA2 associated with lighter skin and iris pigmentation specifically across East Asian populations.