ACTG1 rs286597: What Your Genotype Means
The rs286597 variant is a single-nucleotide polymorphism located within the ACTG1 gene. It has been identified in genome-wide association studies as potentially linked to variations in muscular endurance and strength measures.
What each genotype means
Common muscular endurance profile
This genotype represents the most common form of the ACTG1 variant in many populations. Research into this locus suggests associations with muscular endurance and strength phenotypes, though the evidence remains limited and findings can vary significantly between different study cohorts. This result should be viewed as a general statistical observation rather than a specific indicator of your personal athletic potential.
Carried by approximately 38% of individuals of European ancestry, based on the frequency of the major allele.
Heterozygous muscular endurance profile
Carrying one copy of each allele means your genetic profile at this locus is intermediate. While some population-level studies have explored the role of ACTG1 in muscular performance, the current evidence is not sufficient to predict specific physical outcomes or athletic capabilities. This variant is one of many factors that may influence muscle physiology.
This heterozygous genotype is common in populations where the minor allele frequency is approximately 0.38.
Minor allele muscular profile
This genotype represents the homozygous state for the minor allele of the ACTG1 variant. While this locus has been identified in GWAS studies as potentially relevant to muscular endurance and strength, the overall evidence strength is limited and results are not definitive. It is important to remember that complex traits like muscle performance are influenced by a vast array of genetic and environmental factors.
This genotype is less common than the CC or CT genotypes in European populations, occurring at a frequency consistent with the minor allele distribution.
Understanding the rs286597 Variant
The rs286597 variant is a specific change in the DNA sequence, known as a single-nucleotide polymorphism (SNP), located within the ACTG1 gene. SNPs are the most common type of genetic variation among people, representing a difference in a single building block of DNA. This particular variant sits within the genomic region that encodes the actin gamma 1 protein. In the context of genetic research, scientists track these variants to see if they correlate with specific physical traits or health outcomes. While rs286597 is documented in public databases, it is important to note that the presence of a variant does not guarantee a specific physical outcome. Genetic associations are statistical observations made across large groups of people, and they do not account for the complex interplay of environment, lifestyle, and other genetic factors that influence human physiology.
The Role of the ACTG1 Gene
The ACTG1 gene provides the instructions for creating the gamma-actin protein. Actin proteins are fundamental components of the cytoskeleton, which is the structural framework that gives cells their shape and allows them to move and divide. While some actin proteins are specialized for muscle contraction, gamma-actin is found in cells throughout the entire body, playing a critical role in various cellular activities. Because this protein is so widely distributed and essential for basic cell function, the ACTG1 gene is vital for normal development. Mutations in this gene have been linked to specific medical conditions, such as certain forms of hereditary hearing loss and developmental syndromes. Understanding the function of ACTG1 helps researchers investigate how subtle variations in its sequence might influence broader physiological traits, such as how muscle tissue responds to physical stress or training.
Research and Evidence Strength
The association between rs286597 and muscular endurance or strength is categorized as having limited evidence. Genome-wide association studies (GWAS) are powerful tools that scan the entire genome to find statistical links between variants and traits, but these findings require replication and functional validation to be fully understood. In the case of rs286597, while some studies have flagged it in relation to muscular phenotypes, the effect sizes are typically small, and the biological mechanism connecting this specific SNP to muscle performance remains an area of ongoing investigation. It is crucial to interpret these findings with caution; a statistical association in a research paper does not imply a direct cause-and-effect relationship. Many factors, including diet, exercise intensity, recovery, and other genetic markers, play a much larger role in determining an individual's physical strength and endurance than any single SNP.
Population Frequency and Interpretation
Genetic variants are distributed differently across various ancestral populations. For rs286597, the minor allele frequency is approximately 0.38 in European populations. This means that the variant is relatively common, appearing in a significant portion of the population. Because it is common, it is considered a normal part of human genetic diversity rather than a rare mutation. When considering this information, it is important to remember that genetic data is descriptive, not prescriptive. You cannot use this information to predict your athletic potential or to design a training program. Genetic testing for such variants is often used for research purposes to understand human biology at a population level. If you are interested in your physical health or performance, the most effective approach is to consult with qualified professionals, such as sports scientists, physical therapists, or physicians, who can provide personalized guidance based on your actual physical capabilities and health history.
How common is this variant?
The rs286597 variant is common, with a minor allele frequency of approximately 0.38 in European populations.
Frequently asked questions
Can I use this SNP to predict my athletic ability?
No. Athletic performance is a complex trait influenced by thousands of genetic variants, environmental factors, and training. A single SNP like rs286597 has a negligible impact on overall physical potential.
Is rs286597 a mutation that causes disease?
No. rs286597 is a common genetic variant, not a disease-causing mutation. While the ACTG1 gene can be associated with certain medical conditions when mutated, this specific SNP is studied in the context of normal human variation.
Where can I find more information on ACTG1?
You can visit the MedlinePlus Genetics website or the NCBI Gene database for comprehensive, peer-reviewed information on the function and clinical significance of the ACTG1 gene.
Why is the evidence for this variant called 'limited'?
Evidence is labeled as limited when initial statistical associations from GWAS have not been consistently replicated or when the biological mechanism linking the variant to the trait is not yet clearly established.
Sources & further reading
Educational information only, last refreshed 9/15/2026. Not medical advice — these associations describe population statistics, not individual predictions.
Curious what your genotype is for rs286597?
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 — $29