3.1.3.52 0.5 - 4-nitrophenyl phosphate mutant N94K, presence of Mg2+, 37°C, pH 7.5 751367 3.1.3.52 1 - 4-nitrophenyl phosphate wild-type, presence of Mg2+, 37°C, pH 7.5 751367 3.1.3.52 22.9 - 4-nitrophenyl phosphate mutant N94K, presence of Mn2+, 30°C, pH 7.5 751367 3.1.3.52 40.9 - 4-nitrophenyl phosphate wild-type, presence of Mn2+, 30°C, pH 7.5 751367