RIMBP2 rs184071225: Strabismus Risk and Genetics
rs184071225 is a non-coding single nucleotide polymorphism located in the human genome that has been statistically linked to strabismus in multi-ancestry genetic studies. In large-scale research from the All of Us Research Program, this variant demonstrated genome-wide significant associations with strabismus specifically within Admixed American populations. Carrying the minor allele correlates with altered statistical odds of strabismus, though it is not a direct medical diagnostic marker.
What each genotype means
Typical strabismus risk profile
You carry two copies of the standard A allele at rs184071225. In published genetic association studies, this common genotype is not associated with an elevated likelihood of strabismus. Your baseline statistical risk reflects that of the general population.
Carried by approximately 96% of Admixed American individuals and more than 99.9% of European and African ancestry populations.
Increased strabismus association
You carry one copy of the uncommon C allele at rs184071225. Genome-wide association research has linked this variant to an increased statistical risk of strabismus, with significance specifically reported in Admixed American cohorts. However, having this allele is a probabilistic factor rather than a direct cause or clinical diagnosis.
Carried by approximately 3.9% of individuals in Admixed American populations and fewer than 0.1% in European or African ancestries.
Elevated strabismus association
You carry two copies of the low-frequency C allele at rs184071225. Published studies demonstrate that the C allele is associated with higher statistical odds of strabismus in Admixed American populations, though homozygous carriers remain very rare. These findings describe population-level statistical risk and do not determine whether an individual will develop ocular misalignment.
Extremely rare across all studied populations, occurring in fewer than 1 in 2,500 Admixed American individuals and virtually undetected in other ancestries.
Understanding rs184071225 and Genomic Context
rs184071225 is a single nucleotide polymorphism consisting of an adenine to cytosine (A>C) substitution on chromosome 14. Genomic literature and association studies identify rs184071225 alongside neighboring synaptic genes such as RIMBP2 (RIMS Binding Protein 2) on chromosome 12 as key loci highlighted in recent ocular alignment research. Because the variant falls outside of the direct protein-coding exons, it does not alter the primary amino acid sequence of a polypeptide. Instead, non-coding single nucleotide polymorphisms frequently exert their phenotypic influences by altering regulatory motifs, enhancers, or chromatin accessibility that govern local or distal gene expression. Population genomics resources classify rs184071225 as a low-frequency variant across most global populations, with higher representation seen in specific demographic cohorts.
The Biological Role of RIMBP2 and Synaptic Pathways
The RIMBP2 gene encodes RIMS-binding protein 2, an active-zone scaffold protein heavily expressed in neural tissues, including the brain and retina. At presynaptic terminals, RIMBP2 interacts directly with Rab3-interacting molecules (RIMs) and voltage-gated calcium channels to organize the release of neurotransmitters. Proper alignment and movement of the human eyes rely on complex, millisecond-level neuromuscular coordination involving cranial nerves, brainstem nuclei, and the extraocular muscles. Disruptions in synaptic scaffolding or neurotransmitter release efficiency can potentially affect neural transmission circuits involved in binocular alignment. While the precise molecular mechanism connecting rs184071225 to synaptic homeostasis remains under active laboratory investigation, synaptic transmission pathways are biologically plausible contributors to ocular motor control.
Scientific Evidence and Strabismus Association
Strabismus is an ocular disorder characterized by misalignment of the visual axes, often colloquially called crossed eyes. In a landmark genome-wide association study (GWAS) conducted using diverse genomic cohorts from the All of Us Research Program, researchers sought to isolate the genetic architecture of non-acquired strabismus across different ancestral backgrounds. rs184071225 reached genome-wide significance (P = 5.81 x 10^-9) in the Admixed American (AMR) cohort, where it was present at a minor allele frequency of approximately 2%. This represents moderate statistical evidence: while genome-wide significant in this cohort, the finding reflects statistical association rather than established direct molecular causation, and the effect size explains only a fraction of overall strabismus heritability.
Population Frequency and Ancestry Differences
Allele distribution for rs184071225 varies dramatically depending on ancestral background. In the All of Us genomic study, the minor allele reached a frequency of roughly 2.0% among individuals of Admixed American ancestry. In contrast, it is exceptionally rare among other global lineages, with an observed frequency of roughly 0.05% in African American cohorts and approximately 0.0025% in individuals of European ancestry. This strong divergence underscores why multi-ancestry genomic databases are crucial for discovering population-specific risk loci. A variant that is virtually absent in traditional European-centric cohorts can be a meaningful contributor to disease architecture in admixed or underrepresented demographic groups.
Interpreting Your Genetic Data Responsibly
Learning that you carry one or two copies of the rs184071225 alternate allele is an educational insight into your inherited genomic background, not a medical diagnosis. Genetic variants identified in genome-wide association studies typically adjust relative statistical probabilities slightly rather than acting as deterministic switches. Many people who carry the associated allele never develop strabismus, while many individuals diagnosed with strabismus do not carry this variant. Strabismus is polygenic and multifactorial, shaped by dozens of genetic variants working in concert with developmental and environmental influences. If you or a family member have concerns regarding ocular health or vision alignment, consultation with an ophthalmologist or optometrist is the recommended course of action.
How common is this variant?
rs184071225 is an ancestry-enriched, low-frequency variant with an allele frequency of approximately 2% in Admixed American populations, while remaining exceedingly rare (<0.05%) in African and European ancestries.
Frequently asked questions
What does a positive result for rs184071225 mean?
Carrying an alternate allele at rs184071225 means you carry a variant statistically associated with higher strabismus odds in genetic research. It does not mean you currently have strabismus or will inevitably develop eye misalignment.
Does rs184071225 cause lazy eye or strabismus directly?
No single common variant directly causes strabismus on its own. rs184071225 was identified through association studies, indicating that it tracks with slightly higher rates of the condition within specific populations as part of a complex polygenic trait.
Why is this variant only significant in certain ancestries?
Genetic variants often differ in frequency and linkage disequilibrium patterns across human populations. rs184071225 is enriched in Admixed American lineages (around 2%), making its statistical signal detectable in that group while remaining virtually absent in European cohorts.
Can eye exercises or surgery fix a genetic predisposition?
Clinical treatments for strabismus—including corrective lenses, vision therapy, or muscle surgery—are determined by clinical examination of the eye muscles and visual pathways rather than your genetic profile. Genetics does not alter standard clinical treatment protocols.
Sources & further reading
Educational information only, last refreshed 9/12/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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