MC1R rs796296176: Understanding This Genetic Variant
The rs796296176 variant is a specific genetic alteration located within the MC1R gene. It has been identified in clinical databases as a potential factor associated with an increased risk of cutaneous malignant melanoma.
What each genotype means
Typical MC1R activity
This genotype represents the common, wild-type sequence for the MC1R gene. Individuals with this profile do not carry the specific variant associated with altered receptor activity and the associated increase in melanoma risk described for this locus.
This is the most common genotype globally, though specific frequencies vary significantly by ancestral background.
Altered MC1R activity
Carrying one copy of this variant may be associated with altered melanocortin 1 receptor activity. Research indicates that MC1R variants can contribute to melanoma risk independently of pigmentation phenotypes, though the evidence for this specific variant is limited.
This genotype is rare, with the variant allele occurring at a frequency of less than 0.001 across global populations.
Altered MC1R activity
Carrying two copies of this variant may be associated with altered melanocortin 1 receptor activity. While MC1R variants are generally linked to increased melanoma risk, the clinical significance of this specific rare variant remains limited and requires further study to fully understand its impact on individual risk.
This genotype is extremely rare, as the variant allele frequency is less than 0.001 across global populations.
What is rs796296176 and Where is it Located?
The variant rs796296176 is a single nucleotide polymorphism (SNP) situated on chromosome 16. In the human genome, it is located within the MC1R gene, which stands for melanocortin 1 receptor. This gene is highly polymorphic, meaning it contains many natural variations across different human populations. Geneticists track this specific variant using its unique reference SNP ID, or rsID, which allows researchers to catalog and study its presence across diverse genetic datasets. Because the MC1R gene is relatively small and plays a critical role in biological pathways related to skin and hair pigmentation, even minor changes in its DNA sequence can be the subject of intense scientific scrutiny. Researchers use tools like the GRCh38 assembly to pinpoint the exact coordinates of this variant, ensuring that studies conducted globally are referring to the same precise location on the chromosome.
The Role of the MC1R Gene
The MC1R gene provides instructions for making a protein called the melanocortin 1 receptor. This receptor is primarily found on the surface of melanocytes, which are specialized cells that produce melanin, the pigment that gives skin, hair, and eyes their color. Under normal conditions, the receptor helps switch the production of melanin from pheomelanin (a reddish-yellow pigment) to eumelanin (a brownish-black pigment). This process is essential for protecting the skin from the damaging effects of ultraviolet (UV) radiation from the sun. When the MC1R gene functions optimally, it helps the body manage its response to sun exposure. Variations in this gene can alter the receptor's activity, potentially impacting how an individual's skin reacts to UV light. Because of this central role in pigmentation and UV protection, the MC1R gene is a primary focus in research regarding skin health and the development of skin cancers.
Research Associations and Evidence Strength
Research into MC1R variants has consistently shown that certain changes in this gene are linked to an increased risk of cutaneous malignant melanoma. While many common MC1R variants are well-studied, rs796296176 is categorized as having limited evidence regarding its specific clinical impact. Some databases, such as ClinVar, have flagged this variant in the context of cutaneous malignant melanoma, but it is important to note that the strength of evidence for rare variants can be lower than for more common, widely studied ones. Large-scale pooled analyses, such as the M-SKIP project, have demonstrated that the presence of various MC1R variants can increase melanoma risk independently of traditional phenotypic traits like hair color or skin type. However, because rs796296176 is rare, its individual contribution to risk is less clearly defined than that of more frequent variants. Scientific consensus emphasizes that while MC1R status is a factor, it is only one piece of a complex puzzle involving sun exposure, family history, and other genetic markers.
Population Frequency
The rs796296176 variant is considered rare, with a minor allele frequency (MAF) of less than 0.001 across global populations. This means that the variant is not commonly found in the general population, making it difficult to conduct large-scale statistical studies on its specific effects compared to more prevalent variants. Because it is so infrequent, most individuals will not carry this specific genetic change. Genetic diversity in the MC1R gene is high, and the distribution of these variants often varies significantly between different ancestral groups. Researchers continue to monitor such rare variants through large genomic databases to better understand their distribution and potential clinical significance as more data becomes available.
What You Can and Cannot Do With This Information
Understanding your genetic profile can be educational, but it is not a substitute for professional medical advice. If you have received information about your MC1R status, it is important to view it as a single data point rather than a definitive health prediction. You cannot use this information to diagnose yourself with melanoma or to determine your exact risk level. Genetic variants are only one factor in a person's overall health profile; environmental factors, such as cumulative sun exposure and the use of protective measures like sunscreen and shade, play a significant role in skin cancer risk. If you are concerned about your skin health or your family history of melanoma, the most effective step is to consult with a dermatologist or a genetic counselor. They can provide personalized guidance based on your full medical history and clinical presentation, rather than relying on a single genetic variant.
How common is this variant?
The rs796296176 variant is rare, with a minor allele frequency (MAF) of less than 0.001 across global populations.
Frequently asked questions
Is rs796296176 a cause of melanoma?
No, having a specific variant does not mean you will develop melanoma. It is considered a risk factor that may contribute to susceptibility, but skin cancer is a complex disease influenced by many genetic and environmental factors.
Should I get tested for MC1R variants?
Routine testing for MC1R variants is not currently recommended for the general public. If you have a strong family history of melanoma, you should discuss the potential benefits and limitations of genetic testing with a qualified healthcare provider or genetic counselor.
Does this variant mean I have red hair?
While many MC1R variants are associated with red hair and fair skin, not all variants have the same effect. The presence of this specific variant does not guarantee any particular physical trait.
What should I do if I have this variant?
If you are aware of your genetic status, the best approach is to maintain regular skin check-ups with a dermatologist. Focus on sun safety, such as wearing protective clothing and using sunscreen, which are recommended for everyone regardless of their genetic profile.
Sources & further reading
Educational information only, last refreshed 9/22/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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The p.Arg163Gln variant in MC1R is associated with red hair, fair skin, and increased melanoma risk.
This missense variant (p.Arg142His) is a well-established, highly penetrant allele associated with red hair color and fair skin pigmentation.
This missense variant (p.Arg160Trp) is a primary genetic determinant of red hair color, pale skin, and increased freckling in European populations.
The Val60Leu missense variant in MC1R is a well-documented factor contributing to the red hair, fair skin, and freckling phenotype.
A rare variant associated with lighter skin pigmentation in specific populations.
Asp294His coding substitution in the MC1R gene associated with red hair, skin sun-sensitivity, and melanoma risk.