NPY2R rs2880415: What Your Genotype Means
The rs2880415 variant is a single nucleotide polymorphism located within the NPY2R gene, which encodes a receptor involved in appetite regulation. Research has explored its potential associations with body mass index and physical fitness scores, though findings remain mixed and context-dependent.
What each genotype means
Fitness and obesity association
Research in some populations, such as Korean children, has linked the CC genotype to specific physical fitness scores. While this variant is located in the NPY2R gene, which is involved in appetite regulation, the evidence regarding its direct impact on body mass index or obesity remains limited and inconsistent across different ethnic groups.
This genotype is common, though exact frequency varies significantly by global ancestry.
Fitness and obesity association
Carriers of the CT genotype have been observed in studies to show associations with physical fitness metrics in children. Because this variant is part of a gene linked to hypothalamic appetite control, researchers have investigated its role in weight-related traits, but findings are mixed and do not suggest a definitive diagnostic outcome.
This is a common genotype found in many populations worldwide.
Fitness and obesity association
The TT genotype represents the alternative homozygous state for this variant. While some studies have explored the role of NPY2R variants in obesity and fitness, the evidence for this specific genotype's influence is limited and does not provide a clear clinical prediction for an individual's health or physical performance.
This genotype is observed at common frequencies across various ancestral backgrounds.
Understanding the rs2880415 Variant
The rs2880415 variant is a specific genetic change, or single nucleotide polymorphism (SNP), located within the NPY2R gene. In genetic terms, this variant is often identified as a synonymous substitution, meaning it changes the DNA sequence without altering the amino acid sequence of the resulting protein. Specifically, it is sometimes referred to in literature as an Ile312Ile substitution. Because it does not change the protein structure directly, researchers investigate whether it might influence gene expression, such as how much receptor protein is produced or how the gene is regulated within the cell. This SNP is situated in the coding region of the gene, making it a target for studies looking at how inherited variations contribute to complex human traits like metabolism and physical performance.
The Role of the NPY2R Gene
The NPY2R gene provides instructions for making the neuropeptide Y receptor Y2. This receptor is part of a critical signaling pathway in the brain, particularly in the hypothalamus, an area known for regulating appetite, energy balance, and food intake. By responding to neuropeptide Y, a hormone that stimulates hunger, the Y2 receptor helps the body maintain energy homeostasis. Because of its central role in these processes, scientists have long hypothesized that variations in the NPY2R gene might influence an individual's predisposition to obesity or their metabolic response to exercise. While the biological pathway is well-established, the specific impact of individual SNPs like rs2880415 on these complex physiological outcomes is still a subject of ongoing scientific inquiry.
Research Associations and Evidence Strength
Evidence linking rs2880415 to human traits is considered limited and inconsistent across different studies. Some research has reported associations between this variant and body mass index (BMI) in specific cohorts, such as in studies of white subjects in Utah. Additionally, a study involving Korean children identified a potential link between the CT and CC genotypes and variations in physical fitness scores, including measures of endurance and strength. However, other large-scale studies have failed to replicate these findings, and some investigations have found no significant association between NPY2R variants and obesity in different populations, such as German children. These conflicting results highlight the complexity of genetic associations, where environmental factors, age, and ancestry likely play significant roles in how a specific genotype manifests in an individual.
Population Frequency
The rs2880415 variant is considered a common polymorphism. Research indicates that the minor allele frequency is sufficient to be observed across various biogeographic ancestry groups, though the specific distribution of the CC, CT, and TT genotypes can vary between populations. Studies have noted that common variants in this gene do not show drastic differences in frequency across major ancestry groups, suggesting that the variant is widely distributed globally.
Interpreting Your Genetic Information
It is important to understand that genetic variants like rs2880415 are only one small piece of a much larger puzzle regarding health and fitness. The associations observed in scientific literature are statistical in nature, meaning they describe trends across large groups of people rather than predicting outcomes for any single individual. Because the evidence for this specific SNP is limited and inconsistent, it cannot be used to diagnose health conditions or provide personalized medical advice. Factors such as diet, physical activity, sleep, and overall lifestyle have a far more profound impact on physical fitness and body weight than this single genetic marker. If you have concerns about your health, fitness goals, or metabolic status, the most effective approach is to consult with a qualified healthcare professional or a registered dietitian who can provide guidance based on your personal health history.
How common is this variant?
The rs2880415 variant is a common genetic marker found across diverse populations, with no significant differences in allele frequency reported across major biogeographic ancestry groups.
Frequently asked questions
Can I use rs2880415 to predict my athletic potential?
No. While some studies have explored links between this variant and physical fitness scores, the evidence is limited and inconsistent. Athletic performance is a complex trait influenced by thousands of genes, training, and environmental factors.
Is rs2880415 a cause of obesity?
There is no evidence that this variant causes obesity. While some research has investigated its association with BMI, findings are mixed, and it is not considered a primary genetic driver of weight-related conditions.
Should I change my diet based on my NPY2R genotype?
No. You should not make dietary changes based on this genetic variant. Always consult with a registered dietitian or healthcare provider for personalized nutritional advice.
Why do different studies show different results for this SNP?
Genetic association studies often vary due to differences in population ancestry, sample sizes, and environmental factors. This is common in genomics, especially for complex traits like fitness and BMI.
Sources & further reading
Educational information only, last refreshed 10/31/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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