LDLR rs2738465: Understanding Your Genetic Variant
The rs2738465 variant is a single nucleotide polymorphism located in the 3' untranslated region (UTR) of the LDLR gene. Research suggests this variant may influence how individuals respond to rosuvastatin, a medication used to manage cholesterol levels.
What each genotype means
Typical rosuvastatin response
This genotype represents the most common form of this variant. Research suggests this version of the LDLR gene may be associated with standard responses to rosuvastatin therapy. Please discuss your medication efficacy and any lipid-lowering goals with your clinician or pharmacist.
This is the most frequent genotype observed in most global populations.
Potential altered drug response
Carrying one copy of the T allele may influence how your body responds to rosuvastatin, as this variant is located in a regulatory region of the LDLR gene. Evidence regarding the magnitude of this effect is limited, and you should consult your healthcare provider to determine if your current treatment plan is optimal for your lipid levels.
This genotype is more frequently observed in Chinese Han populations compared to other global ancestries.
Potential altered drug response
Carrying two copies of the T allele may be associated with differences in rosuvastatin efficacy compared to the common genotype. Because the evidence for this specific variant's impact is limited, it is important to monitor your cholesterol levels closely and discuss your medication response with your doctor or pharmacist.
This genotype is less common than the CC or CT genotypes, with higher prevalence noted in Chinese Han populations.
What is rs2738465?
The rs2738465 variant is a specific change in the DNA sequence of the LDLR gene. It is categorized as a single nucleotide polymorphism (SNP), meaning it involves a variation at a single position in the genetic code. This particular SNP is located in the 3' untranslated region (UTR) of the gene. The 3' UTR is a segment of messenger RNA (mRNA) that follows the coding region and plays a critical role in regulating gene expression, including the stability of the mRNA and how efficiently it is translated into protein. Because this region does not code for the protein itself, variants here often influence the amount of protein produced rather than the structure of the protein. Scientists study these non-coding variants to understand how subtle changes in gene regulation can impact physiological traits and responses to medical treatments.
The Role of the LDLR Gene
The LDLR gene provides the instructions for creating the low-density lipoprotein receptor (LDLR) protein. This receptor is essential for maintaining healthy cholesterol levels in the blood. It sits on the surface of cells, particularly in the liver, where it acts like a docking station for low-density lipoproteins (LDL), often referred to as 'bad' cholesterol. Once the LDL particles bind to these receptors, they are internalized into the cell and removed from the bloodstream. When the LDLR gene functions correctly, it helps keep blood cholesterol levels within a normal range. Mutations or variations that disrupt the production or function of these receptors can lead to elevated cholesterol levels, which is a hallmark of conditions like familial hypercholesterolemia. Understanding how variants like rs2738465 affect the expression of this receptor is a key area of research in cardiovascular genetics.
Research and Clinical Associations
Current research into rs2738465 has primarily focused on its potential role in pharmacogenomics, specifically regarding the efficacy of rosuvastatin. Rosuvastatin is a statin medication that works by inhibiting an enzyme involved in cholesterol production, which in turn triggers the liver to produce more LDL receptors to clear cholesterol from the blood. Studies have investigated whether variations in the LDLR gene, including those in the 3' UTR, might explain why some patients experience different cholesterol-lowering responses to this drug. While some evidence suggests an association between this variant and treatment outcomes, the overall strength of this evidence is currently considered limited. It is important to note that genetic associations are statistical observations across populations and do not predict an individual's specific clinical outcome. If you have questions about your medication or how your genetics might influence your treatment, please consult your physician or a pharmacist.
Population Frequency
The frequency of the rs2738465 variant varies significantly across different ancestral groups. Scientific literature indicates that this variant is more commonly observed in Chinese Han populations compared to other global groups. Understanding these population-specific frequencies is vital for researchers, as it helps them account for genetic diversity when conducting studies on drug efficacy and disease risk. Because the prevalence of this variant is not uniform worldwide, findings from one population may not necessarily apply to others. Researchers continue to collect data to better map the distribution of this SNP globally, which helps in refining our understanding of how genetic background influences health and treatment responses across diverse human populations.
What You Can Do With This Information
Genetic information can be a powerful tool for understanding your biological makeup, but it is important to use it appropriately. Knowing your genotype for rs2738465 does not provide a diagnosis or a definitive prediction of how you will respond to any medication. Genetic factors are only one piece of a much larger puzzle that includes diet, lifestyle, environment, and other genetic markers. You cannot use this information to make independent decisions about your healthcare or medication dosing. If you have received genetic testing results that include this variant, the most productive step is to discuss them with a qualified healthcare provider. They can help interpret these findings in the context of your overall health history and provide guidance on evidence-based treatment plans. Always prioritize professional medical advice over self-interpretation of genetic data.
How common is this variant?
The rs2738465 variant shows higher frequency in Chinese Han populations compared to other global ancestries.
Frequently asked questions
Does rs2738465 mean I have high cholesterol?
No, this variant is a genetic marker and does not constitute a diagnosis of high cholesterol. Cholesterol levels are influenced by a complex combination of genetics, diet, and lifestyle factors.
Can I use this variant to choose my cholesterol medication?
No, you should not use genetic information to make decisions about your medication. Always consult your doctor or pharmacist to determine the most appropriate treatment plan for your specific health needs.
Is rs2738465 a mutation for familial hypercholesterolemia?
The rs2738465 variant is a common polymorphism, not a pathogenic mutation known to cause familial hypercholesterolemia. Familial hypercholesterolemia is typically caused by specific, rare mutations in the LDLR gene.
Where can I find more information about my specific genotype?
You can discuss your genetic test results with a genetic counselor or your primary care physician. They are trained to interpret these results within the context of your personal and family medical history.
Sources & further reading
Educational information only, last refreshed 9/29/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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This variant is in complete linkage disequilibrium with others in the LDLR 3' UTR, affecting statin therapeutic outcomes.
Synonymous exon 12 variant (p.Asn591Asn) modifying low-density lipoprotein receptor exon splicing efficiency and predisposing carriers to elevated plasma LDL cholesterol.
This variant is associated with levels of low-density lipoprotein (LDL) cholesterol in the blood.
Familial hypercholesterolemia pathogenic missense variant in the LDL receptor gene causing severe premature cardiovascular risk.
Pathogenic missense/in-frame mutation in LDLR associated with autosomal dominant familial hypercholesterolemia and impaired LDL clearance.
Pathogenic LDLR missense variant causing functional impairment of the low-density lipoprotein receptor and familial hypercholesterolemia.