1.14.11.48 2050 - 9-methylxanthine pH 7.4, 25°C, mutant enzyme Q356A 731217 1.14.11.48 1600 - xanthine pH 7.4, 25°C, wild-type enzyme 731217 1.14.11.48 2160 - 2-oxoglutarate pH 7.4, 25°C, wild-type enzyme 731217 1.14.11.48 9500 - 9-methylxanthine pH 7.4, 25°C, wild-type enzyme 731217