MMP9 rs2672598: Understanding Genetic Associations
The rs2672598 variant is a single nucleotide polymorphism located within the MMP9 gene. It has been studied for its potential association with the risk of developing exudative age-related macular degeneration, though evidence remains moderate and context-dependent.
What each genotype means
Baseline risk profile
This is the common genotype for this variant. Research indicates that individuals with this genotype do not carry the specific T allele associated with altered MMP9 activity or potential changes in macular health risk. This result should be viewed as a baseline, as age-related macular degeneration is a complex condition influenced by many genetic and environmental factors.
This is the most common genotype across most global populations, though frequencies vary by ancestry.
Potential risk modulation
Carrying one copy of the T allele may be associated with different levels of MMP9 expression compared to the CC genotype. Some studies suggest that variations in the MMP9 region can influence the risk of exudative age-related macular degeneration, though findings are often context-dependent and vary across different ancestral groups. You should discuss your overall eye health and family history with an eye care professional.
This heterozygous genotype is found in a significant portion of the population, with frequencies typically ranging between 20% and 40% depending on ancestral background.
Increased risk association
Individuals with this genotype carry two copies of the T allele, which has been investigated for its association with the risk of developing exudative age-related macular degeneration. While this genetic marker is statistically linked to the condition in some research, it is not a diagnostic test and does not guarantee the development of the disease. Regular comprehensive eye exams are recommended for all individuals, especially those with a family history of macular degeneration.
This genotype is the least common of the three, appearing in a smaller percentage of the population across most studied ancestries.
What is rs2672598?
The rs2672598 variant is a specific change in the DNA sequence of the MMP9 gene. In genomics, a single nucleotide polymorphism (SNP) like this represents a variation at a single position in the genome. This variant is located within the MMP9 gene, which provides instructions for making an enzyme called matrix metalloproteinase-9. Because this SNP is located in a gene involved in structural tissue maintenance, researchers investigate whether it influences how the body breaks down or remodels extracellular matrix components. Understanding the location and nature of this variant is the first step in determining if it has any functional impact on protein production or enzyme activity.
The Role of the MMP9 Gene
The MMP9 gene encodes a protein known as gelatinase B, which is part of a family of enzymes that degrade the extracellular matrix. This matrix is a complex network of proteins and other molecules that provide structural support to cells and tissues. By breaking down components like collagen, MMP9 plays a critical role in normal physiological processes, including tissue remodeling, wound healing, and immune responses. However, when the activity of this enzyme is dysregulated, it can contribute to pathological conditions. Because MMP9 is involved in maintaining the integrity of barriers in the eye and other tissues, variations in this gene are frequently studied in the context of inflammatory and degenerative diseases.
Research and Evidence Strength
Scientific literature has explored the link between MMP9 variants and various health conditions, including exudative age-related macular degeneration (AMD). The evidence for rs2672598 is considered moderate, meaning that while some studies suggest an association, results can vary significantly based on the population studied and the methodology used. For instance, research on other MMP9 variants has shown that associations found in one ethnic group are not always replicated in others. It is important to note that genetic associations are statistical observations of risk, not direct causes of disease. Many factors, including environmental influences and other genetic markers, contribute to the development of complex traits like AMD.
Population Frequency and Variability
The frequency of the rs2672598 variant is known to be variable across different global populations. Genetic databases indicate that the prevalence of specific alleles can differ significantly between individuals of European, Asian, African, and other ancestries. This variability is common for many SNPs and highlights why researchers must conduct studies across diverse groups to understand the full scope of a variant's impact. Because the frequency is not uniform, a genotype that is common in one population may be rare in another, which can influence the statistical power of association studies and the generalizability of findings.
Interpreting Your Genetic Information
If you have information about your genotype for rs2672598, it is important to view it within the context of current scientific understanding. Genetic testing for such variants is often part of broader research or commercial panels, but these results should not be used for self-diagnosis or medical decision-making. Because the association between this variant and health outcomes is complex and influenced by many non-genetic factors, a single SNP result provides very limited information about your personal health risk. If you have concerns about eye health or other conditions mentioned in genetic reports, the most appropriate step is to consult with a qualified healthcare professional or a genetic counselor who can interpret your results in the context of your overall medical history.
How common is this variant?
The frequency of the rs2672598 variant is variable across different ancestral populations, with allele distributions differing significantly between global cohorts.
Frequently asked questions
Is rs2672598 a diagnostic marker for macular degeneration?
No, rs2672598 is not a diagnostic marker. It is a genetic variant associated with a statistical increase in risk in some studies, but it cannot predict whether an individual will develop the condition.
Can I change my risk associated with this MMP9 variant?
Genetic variants are inherited and cannot be changed. However, many health conditions are influenced by lifestyle and environmental factors that you can discuss with your doctor.
Where can I find more information about MMP9?
You can find authoritative information about the MMP9 gene and its functions on resources like MedlinePlus Genetics or the OMIM database.
Should I be worried if I have the risk allele?
Having a risk allele does not mean you will develop a disease. Most complex traits are influenced by a combination of many genes and environmental factors.
Sources & further reading
Educational information only, last refreshed 10/30/2026. Not medical advice — these associations describe population statistics, not individual predictions.
Curious what your genotype is for rs2672598?
Upload a raw DNA file from 23andMe, AncestryDNA, MyHeritage, or FamilyTreeDNA and see this variant — plus thousands more — interpreted in your full report.
Get my report — $29Related variants in MMP9
Functional promoter variant (-1562C>T) in MMP9 affecting transcriptional activity and extracellular matrix remodeling.
Functional promoter variant (-1562C>T) in matrix metallopeptidase 9 altering promoter activity and gelatinase release.
Missense variant in MMP-9 (R279Q) altering gelatinase activity, impacting matrix degradation and structural dermal photo-aging.
Functional coding variant (R279Q) altering matrix metalloproteinase-9 activity, influencing collagen degradation and solar elastosis upon UV photo-exposure.
This SNP is associated with matrix metalloproteinase activity and cardiovascular disease risk.