Table 1 Kinetic data obtained for LkcE and its mutants

From: Insights into a dual function amide oxidase/macrocyclase from lankacidin biosynthesis

Enzyme

Substrate(s)

kcat (s−1)

KM (μM)

LkcE wt

LC-KA05 (1)/elimination derivative (7) mixture

3.4 ± 0.2

5 ± 2

LkcE wt

Deacetylated derivative (6)

2.4 ± 0.1

5 ± 1

LkcE wt

Deacetylated derivative (6) complemented with DMSO

2.2

3

LkcE wt

EMAA (4)

X

X

LkcE wt

DATD (5)

X

X

LkcE wt

EMAA (4)/DATD (5)

X

X

LkcE E64A

LC-KA05 (1)/elimination derivative (7) mixture

X

X

LkcE E64Q

LC-KA05 (1)/elimination derivative (7) mixture

X

X

LkcE R326L

LC-KA05 (1)/elimination derivative (7) mixture

X

X

LkcE R326Q

Deacetylated derivative (6)

0.88

4

LkcE Y182F

Deacetylated derivative (6)

1.5

4

  1. X = no detected activity