rs449647
This is a regulatory region variant variant in the APOE gene.
▶GWAS Catalog Trait Associations (3)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
GWAS Catalog Trait Associations (3)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
▶Research that mentions this SNP (2)
▶Age-related macular degeneration and functional promoter and coding variants of the apolipoprotein E geneAssociationN=8,000Lars G. Fritsche et al.(2009)· Human Mutation
This cumulative PhD dissertation investigates genetic susceptibility factors for age-related macular degeneration (AMD). The study confirms weak associations of APOE coding variants with AMD risk (P < 0.05) but finds no association with HMCN1 variants. Large replication studies of candidate genes TLR3 and SERPING1 (1,080-4,881 cases and 2,669-2,842 controls) show no association. The authors identified 15 high-risk variants in ARMS2/HTRA1 region on chromosome 10q23.33-10qter, with the ARMS2 A69S variant showing 2.7-fold increased risk heterozygously and 8.2-fold increased risk homozygously, comparable in strength to CFH Y402H. An indel variant (c.*372_815del443ins54) in ARMS2 3' UTR causes mRNA destabilization.
▶Does APOE explain the linkage of Alzheimer's disease to chromosome 19q13?AssociationN=827Blom ES et al.(2008)· American Journal of Medical Genetics Part B: Neuropsychiatric Genetics
This linkage study of 417 affected sibling pairs with Alzheimer's disease from Sweden/Norway, UK, and USA examined chromosome 19q13. The strongest linkage peak (Zlr=3.28, P=0.036) was located 1 Mb from APOE. APOE ε4 alleles explained the linkage in the whole sample and UK/USA subsamples, though the Swedish sample showed marginal evidence of additional linkage. Age at onset had a significant effect on the linkage peak (lod increase=3.31, P=0.002), partially explained by APOE genotypes.
About APOE
The protein encoded by this gene is a major apoprotein of the chylomicron. It binds to a specific liver and peripheral cell receptor, and is essential for the normal catabolism of triglyceride-rich lipoprotein constituents. This gene maps to chromosome 19 in a cluster with the related apolipoprotein C1 and C2 genes. Mutations in this gene result in familial dysbetalipoproteinemia, or type III hyperlipoproteinemia (HLP III), in which increased plasma cholesterol and triglycerides are the consequence of impaired clearance of chylomicron and VLDL remnants. [provided by RefSeq, Jun 2016]
View all APOE variants →Gene information from NCBI Gene. Variant classifications from ClinVar.
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