rs117929211: Understanding This Skin Pigmentation Marker
The rs117929211 variant is a single nucleotide polymorphism (SNP) located in an intergenic region of the human genome. It has been identified in scientific research as a potential marker associated with melanin-related facial skin phenotypes, particularly within Asian populations.
What each genotype means
Typical melanin-related profile
This genotype represents the common state for this variant in many populations. Research suggests this specific marker is associated with melanin-related facial phenotypes in Asian populations, though the exact biological mechanism remains under investigation. This finding is based on statistical associations and does not indicate a medical condition.
This genotype is common in many global populations, though its frequency varies significantly by ancestry.
Associated with facial pigmentation
Carrying one copy of the variant allele has been statistically linked to variations in melanin-related facial phenotypes in Asian populations. Because this variant is intergenic, it may influence how nearby genes are regulated rather than directly altering a protein. This association is based on population-level data and should not be used for individual health predictions.
This genotype is observed at a low frequency in the general population, with higher prevalence noted in specific East Asian cohorts.
Associated with facial pigmentation
Carrying two copies of the variant allele is associated with melanin-related facial phenotypes in Asian populations according to current GWAS data. As an intergenic variant, its influence on pigmentation is likely regulatory in nature. These results reflect population-wide trends and are not diagnostic of any specific physical trait or health outcome.
This genotype is rare, occurring at a low frequency across most studied populations.
What is rs117929211?
A single nucleotide polymorphism, or SNP, is a variation at a single position in a DNA sequence among individuals. The variant rs117929211 is classified as an intergenic SNP, meaning it is located in the non-coding DNA sequences that lie between genes. While intergenic regions do not provide instructions for making proteins, they often contain regulatory elements that can influence how nearby genes are expressed. In the context of genomics, identifying these markers helps researchers map the complex genetic architecture underlying human physical traits. Because this variant does not sit within a known gene, its specific biological mechanism—how it might influence skin pigmentation—remains a subject of ongoing investigation rather than established fact.
Research and Evidence
The evidence linking rs117929211 to skin phenotypes is currently categorized as moderate. Research in this field often utilizes genome-wide association studies (GWAS) to compare the DNA of individuals with specific physical traits against those without them. For rs117929211, studies have highlighted its presence as a novel marker associated with melanin-related facial characteristics in Asian cohorts. It is important to note that skin pigmentation is a polygenic trait, meaning it is influenced by the cumulative effect of many different genetic variants, as well as environmental factors like sun exposure. While this SNP has shown statistical significance in specific studies, it represents only one small piece of a much larger, complex puzzle involving many other genes and regulatory regions.
Population Frequency
The frequency of genetic variants can vary significantly across different ancestral groups due to evolutionary history and migration patterns. For rs117929211, the population frequency is noted as low. This means that the variant is not commonly found across the general global population. When a variant is rare or population-specific, it can be more challenging for researchers to replicate findings across diverse groups. The observation of this SNP primarily in Asian populations aligns with broader genomic research, which has shown that different human populations often possess unique genetic signatures related to skin color and other physical traits, reflecting independent evolutionary adaptations to different environments over thousands of years.
Interpreting Your Results
If you have encountered this variant in a personal genetic report, it is essential to understand that this information is for educational purposes only. This SNP is a marker of association, not a diagnostic tool. It cannot predict your exact skin color, your risk for skin conditions, or how your skin will age. Genetic associations are statistical probabilities observed in large groups and do not necessarily translate to individual outcomes. You cannot use this information to make medical decisions or change your skincare routine. If you have concerns about your skin health, such as changes in pigmentation or sun sensitivity, the most appropriate course of action is to consult with a board-certified dermatologist who can provide a professional evaluation based on your clinical history.
How common is this variant?
The rs117929211 variant is characterized by a low frequency across global populations, with specific associations primarily observed in Asian cohorts.
Frequently asked questions
Is rs117929211 a cause of skin cancer?
No. This variant is a marker associated with normal variation in melanin-related facial phenotypes. It is not a known genetic cause of skin cancer.
Can I use this SNP to predict my skin color?
No. Skin color is a complex trait determined by many genes and environmental factors. A single SNP like rs117929211 cannot accurately predict your skin color.
Why is this variant only found in some populations?
Genetic variants often arise and persist in specific populations due to evolutionary history, migration, and natural selection. This is common for traits like skin pigmentation that have adapted to different environmental conditions.
Should I be worried if I have the GG genotype?
No. Having a specific genotype for this SNP is not a medical condition. It is simply a variation in your DNA that contributes to your unique genetic profile.
Sources & further reading
Educational information only, last refreshed 11/1/2026. Not medical advice — these associations describe population statistics, not individual predictions.
Curious what your genotype is for rs117929211?
Upload a raw DNA file from 23andMe, AncestryDNA, MyHeritage, or FamilyTreeDNA and see this variant — plus thousands more — interpreted in your full report.
Get my report — $29Related variants
The G allele of this variant demonstrates a protective effect, significantly reducing the risk of wrinkle formation.
The T allele of this variant is associated with an increased risk of wrinkle formation.
This variant is a well-replicated pleiotropic locus associated with multiple distinct facial skin aging phenotypes, including wrinkles and pigment spots.
An intergenic variant identified in Latin American populations as conferring an increased risk for wrinkle formation.
This SNP is part of a cluster of variants near the CGGBP1 gene associated with perceived facial aging progression.
This SNP is linked to an age-protective methylation marker in collagen genes, influencing perceived facial aging.