rs505922

This is a regulatory region variant variant in the ABO gene.

GWAS Catalog Trait Associations (33)

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

Research that mentions this SNP (4)

Genome‐wide scan of long noncoding RNA single nucleotide polymorphisms and pancreatic cancer susceptibility
AssociationN=19,862Chiara Corradi et al.(2021)· International Journal of Cancer

Genome-wide scan of long noncoding RNA (lncRNA) variants in 19,862 individuals identified five novel lncSNP associations with pancreatic ductal adenocarcinoma (PDAC) risk. The strongest association was rs7046076 (C allele, OR=1.13, 95% CI=1.09-1.18, P=9.73×10⁻⁹) in the NONHSAG053086.2/lnc-SMC2-1 lncRNA, which disrupts binding to hsa-mir-1256, regulating genes including CDKN2B and DAAM1 involved in cell cycle control and cell migration.

Traits studied:Pancreatic cancerPancreatic ductal adenocarcinoma (PDAC)Pancreatic neuroendocrine tumors
Ischemic stroke is associated with the ABO locus: The EuroCLOT study
AssociationN=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.

Traits studied:Cardioembolic strokeD-dimer concentrationFXIII activityFactor VII clotting activityFactor VIIIIschemic strokeLarge-vessel strokeSmall-vessel diseasevon Willebrand Factor
A Genome‐Wide Association Study for Serum Bilirubin Levels and Gene‐Environment Interaction in a Chinese Population
AssociationN=3,294Xiayun Dai et al.(2013)· Genetic Epidemiology

GWAS study of 3,294 European ancestry individuals from the eMERGE Network examining serum bilirubin and other liver function tests. Strong association signal at UGT1A1 locus (rs887829, beta=0.15, p=1.30×10^-118) confirmed in both adult and pediatric populations. Additional associations identified in SLCO1B1, SLCO1B3, TDRP, ZMYND8, and ABO locus. Phenome-wide analysis revealed protective effect of TA7 repeat against cerebrovascular disease (OR=0.75, p=0.0008).

Traits studied:ALTASTAlkaline phosphataseCerebrovascular diseaseGGTLiver function testsSerum bilirubin levels
CD86 gene variants and susceptibility to pancreatic cancer
AssociationN=781Honggang Xiang et al.(2012)· Journal of Cancer Research and Clinical Oncology

Case-control study investigating CD86 gene polymorphisms (-1057G/A and -2379G/C) and pancreatic cancer susceptibility in 369 Chinese patients and 412 healthy controls. The -1057A allele and -1057GA/AA genotypes showed significantly increased pancreatic cancer risk (OR ~1.5-2.0), while the -2379G/C polymorphism showed no significant association. The AG haplotype at positions -1057/-2379 was also associated with disease susceptibility.

Traits studied:Pancreatic cancer

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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