F2RL1 rs631465: Understanding Your Genetic Variant
The rs631465 variant is a single nucleotide polymorphism located within the F2RL1 gene. Research has statistically associated this variant with various inflammatory conditions, including atopy and obesity.
What each genotype means
Baseline F2RL1 profile
This genotype represents the baseline state for this variant in the F2RL1 gene. Research has explored associations between this gene and traits like BMI and inflammatory responses, but these findings are often specific to certain populations and require further study to understand their full clinical significance.
This genotype is common globally, though exact frequencies vary significantly by ancestral background.
Intermediate F2RL1 profile
Carrying one copy of the G allele means you have an intermediate genetic profile for this F2RL1 variant. While some studies have linked variations in this gene to differences in BMI or inflammatory markers, these associations are complex and influenced by many other genetic and environmental factors.
This heterozygous genotype is found at varying frequencies across global populations, appearing in a significant portion of the general public.
Variant F2RL1 profile
This genotype represents the presence of two copies of the G allele. Some research, particularly in specific cohorts, has investigated links between this variant and traits such as BMI or susceptibility to inflammatory conditions, but these associations are not universal and may not apply to all individuals.
This genotype is less common than the homozygous A genotype in many populations, with frequency distributions that differ notably between ancestral groups.
What is rs631465?
The variant rs631465 is a specific change in the DNA sequence of the F2RL1 gene, which is located on chromosome 5. In genetics, a single nucleotide polymorphism (SNP) like rs631465 represents a variation at a single position in the genome where different individuals may carry different DNA bases. This particular variant is often referred to in scientific literature by its position or its specific nucleotide change, such as c.621C/T. Because it sits within the F2RL1 gene, researchers investigate whether this change influences how the gene functions or how much of its corresponding protein is produced. Understanding the location of this SNP helps scientists map how specific genetic differences might contribute to biological variation between people.
The Role of the F2RL1 Gene
The F2RL1 gene provides instructions for creating a protein known as proteinase-activated receptor 2, or PAR-2. This receptor is a member of a family of proteins that act as sensors for enzymes, particularly those involved in blood coagulation and inflammation. PAR-2 is found on the surface of many cell types, including those in the respiratory tract and immune system. When activated, it plays a significant role in modulating inflammatory responses, regulating innate and adaptive immunity, and helping to maintain the integrity of the endothelial barrier. Because it is a key player in signaling pathways that trigger inflammation, variations in the F2RL1 gene are of interest to researchers studying how the body responds to environmental triggers and inflammatory stimuli.
Research and Associations
Scientific studies have explored the relationship between rs631465 and various health-related traits. Research has indicated that this variant is associated with differences in PAR-2 mRNA expression levels, suggesting it may influence how much of the receptor is produced. In terms of clinical associations, the variant has been linked in some studies to inflammatory conditions such as atopy and obesity. For example, one study identified an association between rs631465 and body mass index (BMI) in specific populations. However, it is important to note that these findings are based on statistical associations observed in specific cohorts. The evidence strength for these links is generally considered moderate, and results can vary depending on the population studied. Further research is required to fully understand the functional impact of this variant on human health.
Population Frequency
The frequency of the rs631465 variant is known to be variable across different ancestral populations. Genetic studies often compare allele frequencies between groups, such as those of African and European descent, to understand how these differences might contribute to observed phenotypic variations. Because the distribution of this SNP is not uniform globally, its potential influence on health traits may also differ depending on an individual's genetic background. Researchers use this frequency data to help determine if a variant is common enough to be studied in large-scale genome-wide association studies or if it is rare and requires different analytical approaches.
Interpreting Your Genetic Information
Genetic information regarding variants like rs631465 provides insight into biological predispositions but does not serve as a medical diagnosis. Statistical associations found in research studies describe trends across large groups of people and cannot predict an individual's health outcome with certainty. Many factors, including environment, lifestyle, and other genetic variants, contribute to complex traits like obesity or inflammatory responses. If you have questions about your health or how your genetic profile might relate to specific conditions, it is essential to discuss these topics with a qualified healthcare provider or a genetic counselor. They can help you interpret your results in the context of your overall health history and provide guidance that is personalized to your specific needs.
How common is this variant?
The frequency of the rs631465 variant is variable across different global populations, with notable differences in allele distribution observed between African and European ancestral groups.
Frequently asked questions
What does the F2RL1 gene do?
The F2RL1 gene encodes the PAR-2 protein, which acts as a sensor for enzymes and plays a key role in regulating inflammatory responses and immune system function.
Is rs631465 a cause of obesity?
No, rs631465 is not a direct cause of obesity. It has been statistically associated with BMI in some studies, but obesity is a complex condition influenced by many genetic, environmental, and lifestyle factors.
Can I use this information to diagnose a condition?
No, genetic variants like rs631465 cannot be used for medical diagnosis. You should always consult with a healthcare professional to discuss any health concerns or genetic findings.
Why do results for this variant vary between studies?
Genetic associations can vary due to differences in study design, the ancestral background of the participants, and the influence of other genetic or environmental factors that interact with the variant.
Sources & further reading
Educational information only, last refreshed 9/25/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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