rs7025486
badMag 5.5This is a intron variant variant in the DAB2IP gene.
Key Literature Trait Associations
Abdominal Aortic Aneurysm
rs7025486 in DAB2IP is one of the strongest genetic risk factors for abdominal aortic aneurysm (AAA) identified to date, with replicated associations across AAA, early-onset coronary heart disease, and peripheral artery disease. DAB2IP suppresses TNF-NF-kB signalling in vascular smooth muscle cells; the A risk allele reduces DAB2IP expression, promoting extracellular matrix degradation and inflammatory cell infiltration in the aortic wall.
Myocardial infarction
The rs7025486-A allele shows genome-wide significant association with myocardial infarction (MI) risk. The original 2010 AAA GWAS by Gretarsdottir et al. reported OR=1.18 for early-onset MI (p=3.1×10⁻⁵). A 2021 large-scale GWAS in ~831,000 subjects confirmed rs7025486-A as a genome-wide significant MI susceptibility locus (OR≈1.05, p=4×10⁻⁸). A Saudi–European combined meta-analysis in 2023 further replicated this signal across diverse populations. The pleiotropic effect across AAA and MI reflects DAB2IP's role in vascular smooth muscle cell survival and atherosclerotic plaque vulnerability.
Inflammatory Response
DAB2IP acts as a negative regulator of TNF-mediated NF-kB signalling in vascular endothelial and smooth muscle cells. The A allele at rs7025486 reduces DAB2IP expression, disinhibiting NF-kB and amplifying local vascular inflammatory responses. Functional knockout models show this produces elevated plasma TNF, IL-6, and IL-12, increased monocyte adhesion to the endothelium, and accelerated atherosclerosis — consistent with the SNP's association with multiple vascular diseases.
Coronary artery disease
The rs7025486-A allele has been associated with premature coronary artery disease (CAD) in multiple smaller studies. An Indian population study found the AA homozygous genotype conferred OR=3.15 for CAD onset before age 50 (p=0.034), while a Pakistani GWAS-risk-score study found rs7025486 contributed significantly to a cumulative 21-variant CAD risk score. However, a Chinese Han population study found no significant association, indicating population-specific effects. The variant's contribution to CAD likely reflects shared mechanisms with the established MI and AAA associations through DAB2IP-mediated vascular smooth muscle cell apoptosis and inflammatory dysregulation.
Body mass index
The rs7025486-G allele reached genome-wide significance for higher BMI in a 2022 Nature Communications phenome-wide GWAS of approximately 1.1 million European-ancestry participants (β=0.0089 SD units per copy, SE=0.0015, p=4×10⁻⁹). The effect size is modest and the direction of the risk allele is opposite to the AAA-risk A allele, suggesting independent or opposing regulatory effects at this locus. This BMI association may contribute to the complex cardiometabolic phenome of DAB2IP variation, given BMI's downstream influence on vascular disease risk.
▶GWAS Catalog Trait Associations (2)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
GWAS Catalog Trait Associations (2)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
Gene information from NCBI Gene. Variant classifications from ClinVar.
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