WWC1 rs17070213: Understanding the KIBRA Gene and Memory Traits
The rs17070213 variant is a single nucleotide polymorphism located within the WWC1 gene, which encodes the KIBRA protein. Research has investigated its potential association with episodic memory performance and cognitive health, though findings remain mixed and require further study.
What each genotype means
Typical baseline memory performance
You carry two copies of the C allele for this WWC1 (KIBRA) variant. In scientific literature, individuals with the CC genotype have often demonstrated typical episodic memory scores compared to carriers of the T allele. However, overall evidence is limited and mixed, with many replication studies showing minimal or no detectable difference in everyday cognitive function.
Carried by approximately 45% to 55% of individuals of European descent and represents the majority genotype in most global populations.
Modestly enhanced episodic memory
You carry one copy of the T allele and one copy of the C allele. Several studies have associated the presence of the T allele with subtle advantages in delayed recall and episodic memory tasks. However, these associations represent small population-level statistical differences, and findings have been inconsistent across independent research cohorts.
Carried by roughly 35% to 45% of people of European ancestry, but is observed at lower frequencies in East Asian and African populations.
Modestly enhanced episodic memory
You carry two copies of the T allele for this marker. Genetic association studies have grouped TT individuals with CT carriers, finding modest statistical links to improved recollection-based memory performance. The effect size in healthy adults is subtle, and findings remain debated due to non-replications across varied study populations.
Found in approximately 5% to 12% of individuals of European ancestry and is relatively uncommon worldwide.
What is rs17070213?
The variant rs17070213 is a specific change in the DNA sequence located within the WWC1 gene, also known as the KIBRA gene. In genetics, a single nucleotide polymorphism (SNP) like this represents a variation at a single position in the genome. This particular variant is situated in a region of the gene that has been the subject of scientific interest due to its potential influence on brain function. While the human genome is remarkably similar across individuals, these small variations can lead to differences in how proteins are expressed or function. Scientists study these markers to understand the biological underpinnings of complex human traits, such as memory and cognitive processing, by comparing the presence of specific alleles across large groups of people.
The Role of the WWC1 Gene
The WWC1 gene provides instructions for creating the KIBRA protein, which is primarily expressed in the kidney and the brain. In the brain, KIBRA is involved in intracellular signaling pathways that are critical for synaptic plasticity—the process by which connections between neurons are strengthened or weakened over time. Because synaptic plasticity is a fundamental mechanism for learning and memory, researchers have long hypothesized that variations in the WWC1 gene might influence how individuals perform on memory-related tasks. By studying how this protein interacts with other molecules in the brain, scientists hope to better understand the biological basis of episodic memory, which is the ability to recall specific events, times, and places.
Research and Evidence Strength
The evidence linking WWC1 variants to memory performance is considered limited and sometimes conflicting. While early studies suggested that certain alleles in the KIBRA gene were associated with enhanced episodic memory and differences in hippocampal activation, subsequent research has not always replicated these findings. Some studies have explored the role of these variants in the context of Alzheimer's disease and cognitive decline, with results varying significantly between different cohorts and age groups. Because memory is a complex trait influenced by many genes and environmental factors, it is difficult to isolate the effect of a single SNP. Consequently, the scientific community views these associations as preliminary, emphasizing that the presence of a specific genotype does not guarantee a particular cognitive outcome.
Interpreting Your Genetic Information
It is important to understand that genetic variants like rs17070213 are only one small piece of a much larger puzzle. If you have access to your genetic data, it is helpful to view this information as a point of curiosity rather than a definitive predictor of your cognitive abilities. You cannot use this information to diagnose any condition or predict your future memory performance. If you have concerns about your memory, cognitive health, or the risk of neurodegenerative diseases, the most appropriate step is to consult with a qualified healthcare professional or a neurologist. They can provide a comprehensive assessment based on your clinical history, lifestyle, and other relevant factors, which are far more predictive of health outcomes than any single genetic variant.
How common is this variant?
The T allele for variants in the KIBRA gene is generally observed with a frequency of approximately 0.25 to 0.35 in European populations, though frequencies can vary across different global ancestries.
Frequently asked questions
Does having the T allele mean I have a better memory?
No. While some early research suggested an association between certain KIBRA alleles and memory performance, these findings have been inconsistent. Genetic markers are not reliable predictors of individual cognitive ability.
Can this variant predict my risk of Alzheimer's disease?
Current evidence is insufficient to use this variant as a diagnostic or predictive tool for Alzheimer's disease. Memory and cognitive health are influenced by a complex interplay of many genes, lifestyle factors, and environmental exposures.
Should I get tested for this SNP?
There is no clinical utility in testing for this specific SNP. It is not used in standard medical practice to guide health decisions or assess cognitive risk.
What should I do if I am worried about my memory?
If you are concerned about your memory or cognitive function, you should speak with a healthcare provider. They can perform validated clinical assessments that are far more accurate than genetic testing for evaluating your health.
Sources & further reading
Educational information only, last refreshed 10/11/2026. Not medical advice — these associations describe population statistics, not individual predictions.
Curious what your genotype is for rs17070213?
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