ABCG2 and chronic kidney disease: Of the 26 SNPs discovered among approximately 140,000 individuals, seven SNPs were nominally associated (p-value < 0.05) with serum urate among CKD patients in the GCKD study (Supplemental Table 3) and two SNPs, at ABCG2 and at SLC2A9, were significant after adjusting for multiple testing (p-value < 1.9E-03, 0.05/26).