rs8176743
This is a coding sequence variant variant in the ABO gene.
▶GWAS Catalog Trait Associations (16)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
GWAS Catalog Trait Associations (16)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
▶ClinVar annotation
ABO blood group system; Severely weakened expression of B on erythrocytes
View on ClinVar →▶Research that mentions this SNP (2)
▶Genetic variants in five novel loci including CFB and CD40 predispose to chronic hepatitis BAssociationN=6,033Jiang DK et al.(2015)· Hepatology
A genome-wide association study of 83 plasma proteins relevant to cardiovascular disease in 3,394 European subjects identified 79 genome-wide significant loci (p<5e-8), with 55 replicating in independent cohorts (n=2,639). Using eQTL analysis and network methods, the authors proposed plausible causal mechanisms for 25 trans-acting loci including post-translational regulation of KITLG by MMP9 and several receptor-ligand pairs. Multiple loci showed evidence of causal association with coronary artery disease risk.
▶Ischemic stroke is associated with the ABO locus: The EuroCLOT studyAssociationN=63,100Williams FM et al.(2013)· Annals of Neurology
The EuroCLOT study identified genetic variants associated with coagulation factors in healthy volunteers and examined their association with ischemic stroke using a three-stage design (2,100 twins in discovery, 4,200 cases in stage 2, and 8,900 cases/55,000 controls in stage 3). The lead ABO locus SNP rs505922 showed significant association with ischemic stroke (OR=1.07, 95% CI=1.03-1.11, p=0.0006), with association specifically in cardioembolic and large-vessel stroke but not small-vessel disease. Two additional ABO SNPs (rs643434 and rs651007) also showed significant association.
About ABO
This gene encodes proteins related to the first discovered blood group system, ABO. Variation in the ABO gene (chromosome 9q34.2) is the basis of the ABO blood group, thus the presence of an allele determines the blood group in an individual. The 'O' blood group is caused by a deletion of guanine-258 near the N-terminus of the protein which results in a frameshift and translation of an almost entirely different protein. Individuals with the A, B, and AB alleles express glycosyltransferase activities that convert the H antigen into the A or B antigen. Other minor alleles have been found for this gene. [provided by RefSeq, Apr 2022]
View all ABO variants →Gene information from NCBI Gene. Variant classifications from ClinVar.
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