CDKN2B-AS1 rs4971337: Understanding Your Genetic Association
The rs4971337 variant is a common genetic change located within the CDKN2B-AS1 gene region. It has been identified in scientific studies as being associated with an increased risk of coronary artery disease and related cardiovascular conditions.
What each genotype means
Baseline cardiovascular risk
This genotype represents the baseline state for this variant in many populations. Research indicates that the A allele is generally associated with a lower risk of coronary artery disease compared to the G allele. Please note that cardiovascular health is influenced by many genetic and lifestyle factors, so this result should be viewed as one small piece of a larger picture.
This genotype is common in many global populations, though exact frequencies vary significantly by ancestry.
Slightly elevated cardiovascular risk
Carrying one copy of the G allele is associated with a statistically higher risk of coronary artery disease in various studies. This variant is located in the CDKN2B-AS1 gene, which plays a role in inflammatory and proliferative processes. You should discuss your overall cardiovascular health and risk factors with your clinician.
This heterozygous genotype is frequently observed across diverse populations worldwide.
Increased cardiovascular risk
Individuals with this genotype carry two copies of the G allele, which has been linked to an increased susceptibility to coronary artery disease in genome-wide association studies. While this genetic association is documented, it does not guarantee the development of any condition. It is recommended to maintain regular check-ups with your healthcare provider to monitor your cardiovascular health.
This genotype is common, though its prevalence varies depending on the specific ancestral background of the population.
What is the rs4971337 Variant?
The rs4971337 variant is a single nucleotide polymorphism, or SNP, which is a variation at a single position in the DNA sequence. This specific SNP is located within the CDKN2B-AS1 gene, a region of the genome that has been the subject of extensive investigation in cardiovascular research. In the context of genetics, a SNP represents a common point of variation where different individuals may carry different DNA letters. Researchers track these variations to understand how they might correlate with specific health traits or disease risks. Because rs4971337 is found in a region known for its complex regulatory functions, it serves as a marker that scientists use to study the genetic architecture of heart health. It is important to note that identifying a SNP is only one piece of a much larger puzzle, as most complex health conditions are influenced by a combination of many genetic factors, environmental exposures, and lifestyle choices.
The Role of the CDKN2B-AS1 Gene
The CDKN2B-AS1 gene, often referred to as ANRIL, produces a long non-coding RNA molecule. Unlike protein-coding genes that provide instructions for building cellular machinery, long non-coding RNAs like ANRIL act as regulators that help control the activity of other genes. Specifically, this gene is located at the INK4b/ARF/INK4a locus, a critical area involved in cell cycle regulation, senescence, and inflammatory processes. Research suggests that variations in this region can influence how ANRIL is expressed or spliced, potentially altering its regulatory influence on nearby genes. Because these processes are fundamental to how cells grow, divide, and respond to stress, the gene is thought to play a role in various biological pathways. Scientists are actively studying how these regulatory changes might contribute to the development of cardiovascular disease, as well as other conditions like glaucoma or certain cancers, by affecting the health and function of arterial tissues.
Research and Evidence Strength
The association between rs4971337 and coronary artery disease has been observed in multiple genome-wide association studies (GWAS). These studies compare the DNA of large groups of people with and without a specific condition to identify genetic markers that appear more frequently in the affected group. While the statistical evidence linking this variant to cardiovascular risk is documented in the GWAS Catalog, the overall evidence strength is currently considered limited. This means that while the association is statistically significant, the variant itself is likely just one of many contributors to heart health. It is not a diagnostic tool, and carrying the variant does not guarantee that an individual will develop a specific condition. Genetic associations are complex, and researchers continue to investigate how this SNP interacts with other genes and environmental factors to influence disease risk across diverse populations.
Population Frequency
The rs4971337 variant is classified as a common variant, meaning it is found at a relatively high frequency across many different human populations. Because it is common, a large number of people carry at least one copy of the variant allele. This high frequency is typical for many SNPs identified in GWAS, as these studies are often best at detecting common variations that have small to moderate effects on disease risk. While the variant is widespread, the exact frequency can vary depending on an individual's ancestral background. Understanding that a variant is common helps researchers contextualize its role in public health, as it suggests that the genetic predisposition it confers is shared by a significant portion of the global population rather than being restricted to a specific group.
What This Information Means for You
Learning about a genetic variant like rs4971337 can be an educational experience, but it is important to maintain a balanced perspective. This information is intended for informational purposes and should not be used to diagnose or predict your personal health outcomes. Because the evidence for this variant is limited and heart disease is influenced by many factors—including diet, exercise, smoking status, and blood pressure—a single SNP cannot provide a complete picture of your cardiovascular risk. You cannot change your DNA, but you can manage many of the lifestyle factors that significantly impact heart health. If you are concerned about your cardiovascular risk, the most effective step is to consult with a healthcare professional. They can evaluate your overall health profile, family history, and clinical markers to provide personalized guidance that is far more accurate than any single genetic test result.
How common is this variant?
The rs4971337 variant is a common genetic marker found across diverse ancestral populations.
Frequently asked questions
Does having the rs4971337 variant mean I will get heart disease?
No, having this variant does not mean you will develop heart disease. It is only one of many factors, and most people with the variant will not develop the condition.
Can I change my risk if I have this variant?
Yes, you can manage your cardiovascular risk through lifestyle choices such as maintaining a healthy diet, regular exercise, and managing blood pressure. These factors often have a much larger impact on heart health than individual genetic variants.
Should I get a genetic test for rs4971337?
Genetic testing for common variants like this is generally not recommended for clinical decision-making. You should discuss any concerns about your heart health with your doctor, who can assess your risk based on clinical evidence.
Is this variant the same as the ANRIL gene?
The variant rs4971337 is located within the CDKN2B-AS1 gene, which is also known as ANRIL. The variant is a specific point in the DNA sequence, while ANRIL is the name of the gene itself.
Sources & further reading
Educational information only, last refreshed 9/23/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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