. 2014 Sep 10;53(39):6189–6198. doi: 10.1021/bi5007699

Table 3. Steady-State Rates of Aminoacylation by Y59 IleRS Variants^a.

	k_obs (s^–1)
wt IleRS	0.86 ± 0.2
Y59T	0.074 ± 0.003
Y59F	0.024 ± 0.001

All substrate concentrations are verified to be saturating; therefore, k_obs approaches k_cat. The values represent the mean ± the SEM of at least three independent experiments.

Table 3. Steady-State Rates of Aminoacylation by Y59 IleRS Variantsa.

Table 3. Steady-State Rates of Aminoacylation by Y59 IleRS Variants^a.