Table 2 Kinetic data for ME, FumC, and AspA measured by conventional steady-state solution assays.

From: The power of electrified nanoconfinement for energising, controlling and observing long enzyme cascades

 

Aspartate synthesis (downstream)

Aspartate oxidation (upstream)

 

ME

FumC

AspA

ME

FumC

AspA

kcat (s−1)

17 ± 1.1

220 ± 54

503 ± 33

34 ± 3.1

220 ± 29

359 ± 15

KM (mM)

8.6 ± 2.2

1.5 ± 0.11

0.19 ± 0.03

0.7 ± 0.22

0.6 ± 0.2

9 ± 1.6

kcat/Km(M−1 s−1)

2.0 × 103

1.47 × 105

2.65 × 106

4.86 × 104

3.67 × 105

4.0 × 105

Ï„ (1/kcat, ms)

58

4.5

2

29

4.5

2.7

  1. Numbers refer to mean values (N = 3 independent replicates) followed by standard errors.