We use cookies

Essential storage keeps the site working (sign-in, theme, this choice). We'd also like to load Google Analytics to understand, in aggregate, how the site is used — never your genetic data. See our Cookie Policy.

LY86 rs201058: Understanding This Immune-Related Genetic Variant

rs201058
Trait
Limited evidenceGene: LY86

The rs201058 variant is located within the LY86 gene, which encodes the MD-1 protein involved in immune system regulation. Research suggests this gene plays a role in inflammatory pathways and immune cell signaling, though its specific clinical impact remains a subject of ongoing study.

What each genotype means

C/CLower attention

Typical skin barrier baseline

You carry two copies of the C allele at rs201058, which is the baseline genotype widely observed across global populations. Research linking this variant to facial moisture and barrier resilience via LY86 immune-signaling modulation is limited, but this genotype does not carry the hydration-associated T allele. Because current evidence remains preliminary, skin hydration is predominantly governed by overall skincare routine, hydration habits, and environmental exposures.

Found in approximately 34% to 42% of individuals globally, being slightly more frequent in East Asian cohorts than European cohorts.

C/TLower attention

Intermediate moisture resilience

You carry one copy of the T allele and one copy of the C allele at rs201058. In limited trait-association studies, the T allele has been linked to variations in facial moisture retention and inflammatory pathway modulation in the LY86 locus. Because scientific evidence is still emerging and population-specific, this single genetic factor plays only a modest role alongside standard skincare and lifestyle practices.

The most common genotype globally, occurring in roughly 45% to 49% of people across diverse populations.

T/TLower attention

Higher moisture retention profile

You carry two copies of the T allele at rs201058 near the LY86 gene. Early research suggests this genotype is statistically correlated with enhanced skin barrier resilience and improved facial moisture retention through altered lipopolysaccharide signaling. However, current evidence is limited, so routine skin barrier care and sun protection remain the primary determinants of actual skin hydration.

Carried by approximately 12% to 18% of people worldwide, including roughly 12% of East Asian and 18% of European individuals.

What is the rs201058 Variant?

The rs201058 variant is a single nucleotide polymorphism (SNP) situated within the LY86 gene. In genetics, a SNP represents a variation at a single position in the DNA sequence among individuals. The LY86 gene, located on chromosome 6, provides instructions for creating the MD-1 protein. This protein is a secreted glycoprotein that functions as a critical component of the innate immune system. By acting as a co-receptor, MD-1 interacts with other proteins like RP105 and TLR4 to help the body recognize and respond to external threats, such as bacterial components. Because rs201058 is located within this gene, researchers investigate whether this specific change in the DNA sequence might influence how much MD-1 protein is produced or how effectively it functions during an immune response. Understanding the location and nature of this variant is the first step in determining if it contributes to differences in human health or disease susceptibility.

The Role of the LY86 Gene

The LY86 gene, also known as MD-1, is primarily expressed in immune cells such as B-cells and macrophages. Its primary function is to facilitate transmembrane signal transduction, which allows cells to communicate and react to their environment. Research has shown that MD-1 is essential for the proper functioning of the TLR4 signaling pathway, which is a cornerstone of the body's defense against pathogens. Beyond its role in fighting infections, recent studies have highlighted that LY86 may also be involved in lipid metabolism and inflammatory processes. For instance, some evidence suggests that LY86 can influence how macrophages accumulate lipids, potentially linking it to cardiovascular health and metabolic conditions. By modulating these complex pathways, the LY86 gene acts as a bridge between the immune system and broader physiological processes, making it a target of interest for researchers studying inflammation, allergy, and metabolic disorders.

Research Associations and Evidence Strength

Scientific research has linked the LY86 gene to several health-related traits, though the evidence for any single variant like rs201058 is often considered limited or suggestive. Genome-wide association studies (GWAS) have identified the LY86 region as a locus of interest for conditions such as IgA nephropathy, where it may influence immune cell proliferation and immunoglobulin production. Other studies have explored its potential role in asthma, mite-sensitive allergies, and even cardiac remodeling. It is important to note that while these associations are statistically significant in specific cohorts, they do not imply a direct cause-and-effect relationship for every individual. Much of the current evidence is based on population-level data, and the biological mechanisms through which specific variants like rs201058 exert their effects are still being elucidated. Because these findings are often ancestry-specific or observed in small patient groups, the clinical significance of this variant remains an area of active scientific investigation rather than established medical fact.

Population Frequency

The rs201058 variant is recognized as a common genetic variation found across diverse global populations. Because it is common, it is present in a large percentage of the general population, meaning that having one of the variant genotypes is a standard occurrence rather than a rare anomaly. Genetic databases indicate that the frequency of the alleles associated with this SNP does not vary drastically enough to be considered exclusive to one specific ethnic group, though minor differences in frequency can exist between populations. This widespread distribution is typical for many SNPs that have been maintained in the human genome over time. For the average person, carrying this variant is a normal part of human genetic diversity. Its prevalence suggests that it does not cause severe, rare disease, but rather may contribute to subtle variations in immune response or other physiological traits that are influenced by a combination of many different genetic and environmental factors.

What You Can Do With This Information

Information about genetic variants like rs201058 is primarily intended for educational and research purposes. It is crucial to understand that having a particular genotype for this variant does not constitute a medical diagnosis or a prediction of future health. Because the evidence linking this specific SNP to health outcomes is limited and often based on complex population studies, it cannot be used to guide personal medical decisions or lifestyle changes. If you have concerns about your immune health, allergies, or metabolic markers, the most appropriate course of action is to consult with a qualified healthcare professional. They can provide context based on your personal medical history, physical examinations, and validated clinical tests. Never use genetic data to self-diagnose or alter any prescribed medications without first discussing it with your doctor or pharmacist. Genetic information is a tool for scientific understanding, not a substitute for professional medical care.

How common is this variant?

The rs201058 variant is common in global populations, with its various genotypes appearing frequently across diverse ancestral groups.

Frequently asked questions

Is rs201058 a cause of disease?

No, rs201058 is not considered a direct cause of disease. It is a genetic variant associated with immune-related pathways, but its presence does not guarantee the development of any specific health condition.

Can I use this information to change my diet or medication?

No, you should not use genetic information to make changes to your diet or medication. Always consult with your healthcare provider or pharmacist before making any changes to your health regimen.

Why is the evidence for this variant called 'limited'?

Evidence is described as limited because most studies are based on statistical associations in specific populations rather than proven biological mechanisms. More research is needed to fully understand how this variant influences human health.

Does everyone have the same genotype for rs201058?

No, individuals can have different genotypes (AA, AG, or GG) for this variant. These variations are a normal part of human genetic diversity.

Sources & further reading

Educational information only, last refreshed 10/26/2026. Not medical advice — these associations describe population statistics, not individual predictions.

Curious what your genotype is for rs201058?

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 — $29