Objective To find new single nucleotide polymorphisms(SNP) in 3'-untranslated region(3'UTR) of urat1 related to primary hyperuricemia.Methods This study consisted of 273 patients with primary hyperuricemia(PH),and 429 healthy volunteers.DNA was purified from peripheral blood and 3'UTR of the URAT1 gene was sequenced.The genotype and its frequencies were analyzed.Results Three kinds of SNP were found:1925 G>A,del G 1951 and G 2174 A.The differences of genotype frequencies between the groups were not signific...