PKP2 rs1064793231: Understanding This Rare Genetic Variant
The rs1064793231 variant is a rare genetic change located within the PKP2 gene. It is classified as pathogenic and is primarily relevant in the context of carrier screening for inherited cardiac conditions.
What each genotype means
Typical PKP2 genotype
This genotype represents the most common genetic sequence found in the general population for this specific location in the PKP2 gene. It is not associated with the pathogenic changes linked to inherited cardiac conditions like arrhythmogenic cardiomyopathy. No specific clinical action is indicated based on this result.
This is the most common genotype observed across all global populations.
Potential carrier status
This genotype indicates the presence of one copy of the variant, which is classified as pathogenic in the context of cardiac-related conditions. Because PKP2-related conditions can show variable expressivity and incomplete penetrance, you should discuss this finding with a cardiologist or genetic counselor to understand its clinical relevance for your personal health. Please do not make any changes to your medical care without consulting a healthcare professional.
This genotype is rare, occurring at a very low frequency in the general population.
Increased risk profile
This genotype indicates that both copies of the gene carry this variant, which is associated with inherited cardiac conditions such as arrhythmogenic cardiomyopathy. Individuals with this genotype may have a higher likelihood of developing cardiac symptoms, though the severity can vary significantly between individuals. It is essential to consult with a cardiac specialist for a clinical evaluation and to discuss appropriate monitoring or management strategies.
This genotype is extremely rare in the general population.
What is the rs1064793231 Variant?
The variant rs1064793231 is a specific change in the human genetic code found within the PKP2 gene. In genetic databases, it is often documented as a deletion, specifically noted as a single nucleotide change on chromosome 12. Because it is a rare variant, it is not commonly found in the general population. Geneticists and researchers track such variants to understand how they might influence biological processes or contribute to disease risk. When a variant is identified as pathogenic, it means that evidence suggests the change may disrupt the normal function of the gene, potentially leading to health implications. For rs1064793231, the classification is based on its potential impact on the protein produced by the PKP2 gene, which is essential for maintaining the structural integrity of heart muscle cells.
The Role of the PKP2 Gene
The PKP2 gene provides the instructions for building a protein called plakophilin 2. This protein is a critical component of desmosomes, which are specialized structures that act like 'glue' to hold heart muscle cells (myocytes) together. By forming these strong junctions, desmosomes ensure that the heart can withstand the mechanical stress of constant contraction and relaxation. When the PKP2 gene is altered, the resulting plakophilin 2 protein may be missing or dysfunctional, which can weaken the connections between heart cells. This structural weakness is a hallmark of certain inherited cardiac conditions, such as Arrhythmogenic Cardiomyopathy. Research continues to explore how different mutations in this gene affect the heart's ability to function properly and maintain a steady rhythm over time.
Research and Clinical Significance
Scientific research has established a strong link between mutations in the PKP2 gene and various inherited heart conditions. While many variants in this gene are studied, rs1064793231 is specifically noted for its pathogenic classification in clinical databases. It is important to understand that having a pathogenic variant does not guarantee that an individual will develop a heart condition; these conditions often exhibit 'incomplete penetrance' and 'variable expressivity,' meaning that symptoms can differ significantly between people, even those with the same genetic change. Current evidence focuses on the role of PKP2 in maintaining cardiac structure, and clinical guidelines often include this gene in cardiac-related carrier screening panels. Because the evidence is specific to the gene's function, clinicians use this information to help families understand potential risks for inherited heart disease.
Population Frequency and Interpretation
The rs1064793231 variant is considered rare across global populations. In genetics, 'rare' typically means that the variant is found in a very small percentage of individuals, making it unlikely to be encountered in the general public. Because of its rarity, large-scale population studies have limited data on its exact frequency across different ancestral groups. When a variant is rare and pathogenic, it is often studied in the context of families who have a history of cardiac issues rather than in the general population. If you have received information about this variant through a genetic test, it is essential to interpret it within the context of your personal and family medical history. Genetic information is complex, and its clinical relevance can vary based on many factors beyond a single SNP.
What You Can Do With This Information
If you have identified this variant in your genetic profile, the most important step is to consult with a healthcare professional, such as a genetic counselor or a cardiologist. They can help you understand what this result means for your specific health situation and whether further cardiac evaluation is necessary. It is important to remember that genetic testing is not a diagnosis; it is a tool that provides information about your biological predispositions. You should never make medical decisions or changes to your lifestyle based solely on a genetic report without professional guidance. A clinician can help you navigate the implications of this variant, discuss the potential for family screening, and determine if any proactive monitoring is appropriate for your health. Always prioritize discussions with qualified medical experts who can integrate your genetic data with your clinical history.
How common is this variant?
The rs1064793231 variant is rare, with limited data available on its frequency across different ancestral populations in public databases.
Frequently asked questions
What does it mean if I am a carrier for a PKP2 variant?
Being a carrier means you have one copy of a genetic variant that is associated with a specific condition. In the case of PKP2, it is important to speak with a cardiologist to understand if this has any implications for your heart health.
Does having a PKP2 variant mean I have heart disease?
No, having a genetic variant does not mean you have a disease. Many people carry variants without ever developing symptoms, and clinical evaluation is required to determine if the heart is functioning normally.
Should I get my family members tested?
If a pathogenic variant is identified, a genetic counselor can help you determine if cascade testing for family members is appropriate. This is a common practice to help relatives understand their own health risks.
Is there a cure for PKP2-related conditions?
While there is no 'cure' for a genetic variant, there are many effective management strategies for cardiac conditions associated with PKP2. These include regular monitoring, lifestyle adjustments, and medications, all managed by a heart specialist.
Sources & further reading
Educational information only, last refreshed 10/14/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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This variant in the PKP2 gene is associated with arrhythmogenic right ventricular cardiomyopathy.
This variant in the PKP2 gene is associated with desmosomal proteins and is frequently observed in clinical variant databases.
This variant is a pathogenic mutation in the PKP2 gene associated with an increased risk of arrhythmogenic right ventricular dysplasia (ARVD) type 9.