Molecular weight:160 kDa。\nUnit definition:One unit will convert one micromole of Xanthine to Uric acid per min at pH 7.5 at 37℃.\nIsoelectric point: 4.0。\nMichaelis constant: 1.4×10 M (Xanthine)。\nOptimum pH: 7.0~ 7.5。\nOptimum temperature: 55℃。\npH Stability :6.0~9.5(30℃,16hr)。\nThermal stability: < 55℃ (pH 7.5, 20min)。\nInhibitors: Ag ,Hg。\n微红色至褐色无定形粉末。能溶于水。微生物提取。主要抑制剂有Ag+,Hg2+,Cd2+及尿素、氰化物、磷酸根和氯离子,主要稳定剂有水杨酸盐、半胱氨酸、组胺和维尔烯酸盐。\n它是一种催化黄嘌呤、次黄嘌呤生成尿酸的酶,它常作工具酶。用于黄嘌呤、次黄嘌呤、肌苷、鸟嘌呤、鸟苷等的测定\n储存条件: -20℃