6.1.1.21 0.15 - ATP mutant enzyme S365N, at pH 7.5 and 25°C 745058 6.1.1.21 0.272 - ATP mutant enzyme Y330C, at pH 7.5 and 25°C 745058 6.1.1.21 0.38 - ATP mutant enzyme V155G, at pH 7.5 and 25°C 745058 6.1.1.21 3 - L-histidine mutant enzyme V155G, at pH 7.5 and 25°C 745058 6.1.1.21 4 - L-histidine mutant enzyme Y330C, at pH 7.5 and 25°C 745058 6.1.1.21 40 - L-histidine mutant enzyme S365N, at pH 7.5 and 25°C 745058 6.1.1.21 130 - ATP wild type enzyme, at pH 7.5 and 25°C 745058 6.1.1.21 500 - L-histidine wild type enzyme, at pH 7.5 and 25°C 745058 6.1.1.21 1000 - tRNAHis pH 7.2, 37°C, wild-type substrate 716387 6.1.1.21 1231 - tRNAHis wild-type Caulobacter crescentus tRNAHis, pH 7.5, 30°C 716383 6.1.1.21 1500 - tRNAHis mutant enzyme S365N, at pH 7.5 and 25°C 745058 6.1.1.21 1700 - tRNAHis mutant enzyme Y330C, at pH 7.5 and 25°C 745058 6.1.1.21 3100 - tRNAHis mutant enzyme V155G, at pH 7.5 and 25°C 745058 6.1.1.21 6900 - tRNAHis wild type enzyme, at pH 7.5 and 25°C 745058