RP1 rs61747864: Understanding This Retinal Degeneration Variant
The rs61747864 variant is a specific genetic change located within the RP1 gene. It has been identified in research studies investigating inherited retinal degenerations, including forms of retinitis pigmentosa.
What each genotype means
Typical genetic profile
This genotype represents the most common sequence found at this location in the RP1 gene. Research indicates that individuals with this profile do not carry the specific variant associated with certain forms of inherited retinal degeneration. Please note that this does not eliminate the possibility of other genetic or environmental factors affecting vision.
This is the predominant genotype observed in the vast majority of the global population.
Variant carrier status
This genotype indicates the presence of one copy of the variant, which has been implicated in studies of autosomal dominant retinitis pigmentosa. The clinical significance of this specific variant remains limited, and some research suggests it may not show strong statistical enrichment for retinal disease in broader population cohorts. You should discuss these findings with a genetic counselor or ophthalmologist to understand their relevance to your personal health history.
This genotype is rare, occurring in less than 0.1% of the global population according to large-scale genomic databases.
Homozygous variant profile
This genotype indicates the presence of two copies of the variant. While mutations in the RP1 gene are known to be associated with inherited retinal degeneration, the evidence for this specific variant is limited and its clinical impact remains a subject of ongoing research. It is important to consult with a medical professional to interpret this result in the context of your clinical eye health and family history.
This genotype is extremely rare and is observed in a negligible fraction of the global population.
What is the rs61747864 Variant?
The rs61747864 variant is a single nucleotide polymorphism (SNP) situated within the RP1 gene. In genetics, a SNP represents a variation at a single position in the DNA sequence among individuals. This specific variant is categorized as a missense substitution, meaning the change in the DNA code results in a different amino acid being incorporated into the protein produced by the gene. Scientists track these variants to understand how they might influence biological processes or contribute to disease susceptibility. Because this variant is found in a gene known to be critical for eye health, it has been the subject of clinical interest in studies focusing on hereditary vision loss. It is important to note that the presence of a variant does not automatically imply the presence of a disease, as many genetic variations are benign or require specific combinations of other factors to manifest clinically.
The Role of the RP1 Gene
The RP1 gene provides instructions for making a protein that is essential for the normal function of photoreceptor cells in the retina. These cells, known as rods and cones, are responsible for capturing light and converting it into electrical signals that the brain interprets as vision. Research indicates that the RP1 protein plays a structural role in the connecting cilium of these photoreceptor cells, which is vital for the transport of proteins and other materials necessary for cell survival. When the RP1 gene is altered by pathogenic mutations, the resulting protein may be truncated or dysfunctional, which can lead to the progressive death of photoreceptor cells. This process is a hallmark of retinitis pigmentosa, a group of disorders characterized by night blindness and a gradual narrowing of the visual field. Understanding the function of this gene is a primary focus for researchers developing future therapeutic strategies for retinal dystrophies.
Research and Evidence Strength
The association between rs61747864 and retinal degeneration is currently classified as having limited evidence. While the RP1 gene is well-established as a causative factor in various forms of retinitis pigmentosa, not every variant identified within the gene is confirmed to be pathogenic. Clinical research often relies on identifying these variants in patients with diagnosed retinal conditions, but distinguishing between a disease-causing mutation and a rare, harmless genetic variation can be complex. Some studies have observed this variant in the context of inherited retinal diseases, yet the strength of the evidence linking this specific SNP to clinical outcomes remains under investigation. Because genetic research is an evolving field, scientists continue to gather data to determine the precise impact of this variant. It is essential to interpret these findings within the broader context of a person's entire genetic profile and clinical history.
Population Frequency
According to large-scale genomic databases like gnomAD, the rs61747864 variant is quite rare, with a minor allele frequency reported at less than 0.001 globally. This low frequency suggests that the variant is not common in the general population. Because it is so rare, it is difficult for researchers to perform large-scale statistical analyses to determine its exact penetrance or the specific risk it might pose to individuals of different ancestries. Most of the data regarding this variant comes from specialized studies of patients already diagnosed with retinal conditions rather than from the general public. The rarity of the variant underscores the importance of clinical genetic testing and expert interpretation, as rare variants often require detailed family studies to understand their potential role in health and disease.
Navigating Genetic Information
If you have received information about this variant through genetic testing, it is important to understand that this data is for educational purposes and does not constitute a medical diagnosis. Genetic variants are only one piece of a complex puzzle that includes environmental factors, other genes, and individual health history. You cannot determine your risk for retinal disease based on a single SNP alone. If you are concerned about your vision or have a family history of retinal degeneration, the most appropriate step is to consult with a medical professional, such as an ophthalmologist or a genetic counselor. They can provide context, order appropriate clinical-grade testing if necessary, and help you understand what these results mean for your specific health situation. Avoid making health decisions based solely on online reports or raw genetic data, as professional clinical evaluation is required for accurate assessment.
How common is this variant?
The rs61747864 variant is very rare, with a minor allele frequency of less than 0.001 globally in the gnomAD database.
Frequently asked questions
Is rs61747864 a guaranteed cause of blindness?
No. The presence of a genetic variant does not guarantee the development of a disease. The evidence for this specific variant is limited, and many factors influence the development of retinal conditions.
Should I be worried if I have this variant?
Finding a variant in a report does not mean you have or will develop a disease. You should discuss any concerns about your genetic results with a qualified healthcare provider or a genetic counselor.
How is retinitis pigmentosa diagnosed?
Retinitis pigmentosa is typically diagnosed by an ophthalmologist through a comprehensive eye exam, which may include visual field testing, electroretinography, and imaging of the retina. Genetic testing is often used to confirm the underlying cause.
Can I change my risk if I have this variant?
Genetic variants are inherited and cannot be changed. However, maintaining overall eye health through regular check-ups with an eye care professional is recommended for everyone.
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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Get my report — $29Related variants in RP1
Pathogenic variants in the RP1 gene are a well-established cause of autosomal dominant retinitis pigmentosa, leading to progressive photoreceptor degeneration and vision loss.
Carries the Arg677STOP truncating mutation in RP1, accounting for up to 5% of autosomal dominant retinitis pigmentosa in European-derived populations.
Pathogenic nonsense truncating mutation (p.Arg677Ter) causing autosomal dominant retinitis pigmentosa.
Well-characterized nonsense/truncating variant in RP1 linked to autosomal dominant retinitis pigmentosa.
A nonsense variant (p.Arg677Ter) in RP1 causing autosomal dominant retinitis pigmentosa.
This variant in the RP1 gene is associated with autosomal dominant retinitis pigmentosa, causing progressive night blindness and peripheral field loss.