rs13253358

This is a intron variant variant in the PREX2 gene.

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GWAS Catalog Trait Associations (2)

Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.

systolic blood pressure

Evangelou E et al. “Genetic analysis of over 1 million people identifies 535 new loci associated with blood pressure traits.” Nature Genetics 50(10):1412-1425 (2018)
Allele C
OR 0.21
p 1.0e-10
N 757,601
Large GWAS
European
Koskeridis F et al. “Multi-trait association analysis reveals shared genetic loci between Alzheimer's disease and cardiovascular traits.” Nature Communications 15(1):9827 (2024)
Allele C
OR 0.01
p 4.0e-10
N 1,212,859
Large GWAS
European
Keaton JM et al. “Genome-wide analysis in over 1 million individuals of European ancestry yields improved polygenic risk scores for blood pressure traits.” Nature Genetics 56(5):778-791 (2024)
Allele C
OR 0.16
p 9.0e-10
N 1,028,980
Large GWAS
multi-ancestry
Plotnikov D et al. “High Blood Pressure and Intraocular Pressure: A Mendelian Randomization Study.” Investigative Ophthalmology & Visual Science 63(6):29 (2022)
Allele C
OR 0.24
p 2.0e-9
N 526,001
Large GWAS
European

diastolic blood pressure

Keaton JM et al. “Genome-wide analysis in over 1 million individuals of European ancestry yields improved polygenic risk scores for blood pressure traits.” Nature Genetics 56(5):778-791 (2024)
Allele T
OR 0.09
p 3.0e-8
N 1,028,980
Large GWAS
multi-ancestry

About PREX2

The protein encoded by this gene belongs to the phosphatidylinositol 3,4,5-trisphosphate (PIP3)-dependent Rac exchanger (PREX) family, which are Dbl-type guanine-nucleotide exchange factors for Rac family small G proteins. Structural domains of this protein include the catalytic diffuse B-cell lymphoma homology and pleckstrin homology (DHPH) domain, two disheveled, EGL-10, and pleckstrin homology (DEP) domains, two PDZ domains, and a C-terminal inositol polyphosphate-4 phosphatase (IP4P) domain that is found in one of the isoforms. This protein facilitates the exchange of GDP for GTP on Rac1, allowing the GTP-bound Rac1 to activate downstream effectors. Studies also show that the pleckstrin homology domain of this protein interacts with the phosphatase and tensin homolog (PTEN) gene product to inhibit PTEN phosphatase activity, thus activating the phosphoinositide-3 kinase (PI3K) signaling pathway. Conversely, the PTEN gene product has also been shown to inhibit the GEF activity of this protein. This gene plays a role in insulin-signaling pathways, and either mutations or overexpression of this gene have been observed in some cancers. [provided by RefSeq, Apr 2016]

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Gene information from NCBI Gene. Variant classifications from ClinVar.

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