Therefore, we now classify FadA5 as a degradative thiolase or more precisely a 3-ketoacyl-CoA thiolase. Table 1. FadA5 Steady-State Kinetics Parameters SubstrateKm (μM)kcat (s−1)kcat/Km (M−1s−1) 11.8 ± 1.4 0.725 ± 0.038 (6.14 ± 0.13) × 104 a 464 ± 207 0.076 ± ...