KIAA1614 rs12746314: What Your Genotype Means
The genetic variant rs12746314 is a common single-nucleotide polymorphism located within or near the KIAA1614 gene on human chromosome 1. Genome-wide association studies (GWAS) have linked this marker to modest differences in serum lipid measurements and related cardiometabolic traits in population cohorts. Because available evidence remains limited, having a particular genotype indicates only subtle statistical shifts rather than a medical diagnosis.
What each genotype means
Typical lipid profile association
This genotype represents the common homozygous state for this variant. Research indicates that individuals with this genetic profile may show baseline levels for serum lipids and cardiometabolic markers, though the overall impact of this specific variant remains limited. Please consult with your healthcare provider to discuss how your personal health history and lifestyle factors relate to your lipid levels.
This is a common genotype found in a significant portion of the global population, with frequencies varying by ancestry.
Modest lipid trait association
Carrying one copy of the minor allele is associated with modest variations in serum lipid levels and cardiometabolic traits in some population studies. Because the evidence for this association is limited, this genotype should not be used to predict specific health outcomes. Discuss any concerns regarding your lipid profile or cardiovascular health with your clinician.
This heterozygous genotype is common, appearing in a substantial percentage of individuals across diverse global populations.
Potential lipid trait variation
This homozygous genotype is associated with the minor allele, which has been linked in genome-wide association studies to modest differences in serum lipid levels. The clinical significance of this finding is currently considered limited, and it does not serve as a diagnostic indicator. You should discuss your cardiovascular health and any relevant lab results with your doctor or a qualified healthcare professional.
This genotype is less common than the others but is still observed as a frequent polymorphism across many global populations.
Genomic Location and Variant Characteristics
The single-nucleotide polymorphism rs12746314 is mapped to the long arm of human chromosome 1 within the genomic neighborhood of the KIAA1614 gene. As recorded in standard reference databases such as dbSNP and Ensembl, the variant involves a single base substitution, typically reported as a C-to-T transition. Variants residing in non-coding or intronic sequences such as this one rarely disrupt the protein sequence directly; instead, they often reflect subtle regulatory effects on nearby transcript levels or serve as tagging markers inherited alongside other neighboring functional variations through linkage disequilibrium.
Biological Role of the KIAA1614 Gene
The KIAA1614 gene encodes a protein that remains only partially characterized in molecular biology. Computational predictions and foundational cell biology studies suggest that the encoded protein participates in basic cellular architecture, such as centrosome maintenance, cell polarity, and cellular localization processes. While KIAA1614 is expressed across several human tissues, its precise mechanistic connection to systemic metabolic regulation and lipid homeostasis is an active topic of research, highlighting that an association in genetic studies does not automatically clarify the exact physiological pathway involved.
Research Findings and Quality of Evidence
Large-scale genome-wide association studies cataloged in resources such as the GWAS Catalog have identified statistical associations between rs12746314 and slight shifts in circulating blood lipid levels, including cholesterol fractions and triglycerides. However, the scientific evidence base for this locus is currently classified as limited. The observed effect sizes on blood lipids are exceptionally small, accounting for only a minute fraction of total metabolic variability across individuals. Moreover, association results often show variability across ancestries and cohorts, cautioning against interpreting this single marker as a definitive biomarker for cardiovascular health.
Translating Research to Daily Health Decisions
Learning your rs12746314 genotype provides interesting educational context regarding common human genetic variation, but it cannot be used to diagnose dyslipidemia or cardiovascular disease. Serum lipid levels are complex polygenic traits governed by hundreds of genetic loci working alongside powerful lifestyle determinants, including physical activity, diet, sleep, and overall metabolic health. Routine blood tests like a standard lipid panel ordered by a physician provide the definitive clinical picture of your cardiovascular risk profile, far superseding the minor statistical contribution of any single SNP.
How common is this variant?
The rs12746314 variant is a common polymorphism found across diverse global ancestral groups, with minor allele frequencies typically ranging between 0.15 and 0.30 depending on the specific population surveyed.
Frequently asked questions
Does my rs12746314 genotype mean I will develop high cholesterol?
No. The rs12746314 variant is only associated with very subtle statistical variations across large study populations. It does not cause high cholesterol, nor can it reliably predict whether an individual will develop clinical dyslipidemia or heart disease.
Can I use rs12746314 to guide my diet or cholesterol medications?
No, this genetic marker has no established role in pharmacogenomics or personalized nutrition guidelines. Any decisions regarding cholesterol-lowering medications or dietary interventions should be made in consultation with a qualified healthcare provider based on standard clinical tests.
Why is the scientific evidence for rs12746314 considered limited?
Evidence is classified as limited because while genome-wide surveys show statistical correlation, the biological mechanisms connecting KIAA1614 to lipid biology remain unconfirmed. Furthermore, the effect size is exceptionally small and may vary depending on genetic ancestry and study design.
Where can I confirm my clinical cholesterol and lipid levels?
A standard fasting or non-fasting lipid panel ordered by a primary care doctor is the validated medical test for measuring total cholesterol, LDL, HDL, and triglycerides. Direct-to-consumer genetic findings cannot replace these direct biochemical measurements.
Sources & further reading
Educational information only, last refreshed 9/8/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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