CYP1B1 rs1056837: Understanding This Genetic Variant
The rs1056837 variant is a single nucleotide polymorphism located within the CYP1B1 gene. It is primarily studied for its potential role in influencing how the body metabolizes certain drugs, hormones, and other endogenous compounds.
What each genotype means
Common genetic variant
This genotype is a common variation in the CYP1B1 gene. Current clinical databases classify this specific variant as non-pathogenic, meaning it is not considered a primary cause of conditions like primary congenital glaucoma.
This genotype is observed in the general population, though specific frequency data varies by ancestry.
Common genetic variant
This genotype represents a heterozygous state for this CYP1B1 variant. Research indicates this variant is generally considered non-pathogenic and is not typically associated with clinical disease in the absence of other factors.
This genotype is found in the general population across various ancestral groups.
Common genetic variant
This genotype is considered the reference or common state for this position in the CYP1B1 gene. It is not associated with known clinical pathology and is widely documented as a non-pathogenic variant in clinical databases.
This is a common genotype, frequently observed in the general population.
What is rs1056837?
The variant rs1056837 is a specific change in the DNA sequence of the CYP1B1 gene, which is located on chromosome 2. In genetics, a single nucleotide polymorphism (SNP) like rs1056837 represents a variation at a single position in the DNA building blocks. This particular variant is a missense mutation, meaning the change in the DNA code results in a different amino acid being incorporated into the protein structure. Because proteins are the functional workhorses of the cell, changes in their sequence can sometimes alter how they perform their tasks. Researchers track these variants to understand how they might contribute to individual differences in biological processes, such as how quickly or efficiently a person processes specific substances. It is important to note that while this variant is cataloged in major databases, its presence is a normal part of human genetic diversity.
The Role of the CYP1B1 Gene
The CYP1B1 gene provides instructions for making an enzyme that belongs to the cytochrome P450 family. These enzymes are primarily known for their role in metabolism, acting as biological catalysts that help break down or modify a wide variety of substances. CYP1B1 is particularly notable for its involvement in the metabolism of endogenous compounds, including steroid hormones like estrogen. Beyond hormone regulation, this enzyme also plays a part in the metabolism of certain drugs and environmental toxins. Because it is involved in such critical pathways, researchers have long investigated how variations in the CYP1B1 gene might influence health outcomes. While rare, severe mutations in this gene are well-documented as causes of certain developmental eye conditions, such as primary congenital glaucoma. However, common variants like rs1056837 are generally considered to have much more subtle effects on the enzyme's overall function.
Research and Evidence
Scientific research into rs1056837 has focused on its potential impact on metabolic efficiency. Studies have explored whether this variant influences the rate at which the CYP1B1 enzyme processes its substrates, such as estrogen or specific pharmaceutical agents. The evidence regarding this variant is considered moderate. While some studies suggest that variations in CYP1B1 can lead to functional differences in enzyme activity, the clinical significance of rs1056837 remains a subject of ongoing investigation. It is not currently used as a standard diagnostic tool for clinical decision-making. Some research has looked at associations between CYP1B1 variants and cancer risk or drug response, but these findings are often complex and can vary significantly between different study populations. Because of this, it is essential to view these associations as statistical observations rather than definitive predictors of health or treatment outcomes.
Population Frequency
The rs1056837 variant is relatively common in the general population, with various databases reporting its presence across diverse ancestral groups. Because it is a common variant, it is found in many healthy individuals and is not considered a rare or pathogenic mutation in the context of typical genetic screening.
What This Information Means for You
If you have received information about your rs1056837 genotype, it is important to understand that this is just one small piece of your overall genetic profile. Genetic variants do not act in isolation; they interact with your environment, lifestyle, and other genes to influence your health. You cannot use this information to diagnose yourself with a condition or to predict exactly how you will respond to a specific medication. If you are concerned about how your genetics might affect your health or your response to a prescribed drug, the best course of action is to consult with your healthcare provider or a pharmacist. They can interpret your genetic information in the context of your full medical history and provide guidance that is appropriate for your specific situation. Avoid making any changes to your medications or health regimen based solely on genetic test results without professional medical oversight.
How common is this variant?
The rs1056837 variant is widely distributed across global populations, with a minor allele frequency often reported around 37-38% in large-scale genomic studies.
Frequently asked questions
Is rs1056837 a disease-causing mutation?
No, rs1056837 is a common genetic variant found in the general population. It is not classified as a pathogenic mutation that causes disease.
Can I use this result to change my medication dosage?
No. You should never change your medication dosage based on genetic test results. Always discuss your medications and any genetic information with your doctor or pharmacist.
Does this variant affect my risk of cancer?
Some research has explored links between CYP1B1 variants and cancer risk, but the evidence is mixed and not conclusive. Genetic variants are only one of many factors that influence health.
Where can I find more information about my specific genotype?
You can look up your specific variant in databases like ClinVar or SNPedia for technical details. However, for personal health implications, always consult a qualified healthcare professional.
Sources & further reading
Educational information only, last refreshed 10/6/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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This variant (p.Asn453Ser, formerly Val432Leu) in the CYP1B1 gene is associated with altered enzyme activity and has been investigated for susceptibility to various cancers, including breast and prostate cancer.
This variant (p.Gly61Glu) is a well-documented pathogenic mutation associated with primary congenital glaucoma (PCG) and is also studied for its role in oxidative stress and drug response pathways.
A missense variant in CYP1B1 (p.Ala119Ser) associated with primary congenital glaucoma and juvenile open-angle glaucoma risk.
A well-characterized loss-of-function missense variant causing primary congenital glaucoma through abnormal trabecular meshwork development.
Missense variant in CYP1B1 associated with primary congenital glaucoma.
A classic founder missense mutation in CYP1B1 responsible for early-onset recessive infantile and juvenile glaucoma.