Table 1 Apparent kinetic parameters for laccase and Cu-containing artificial complexes with respect to the catalytic oxidation of a variety of reducing substrates

From: A supramolecular metalloenzyme possessing robust oxidase-mimetic catalytic function

 

kcat (s-1)

Km (mM)

kcat/Km (s-1 mM-1)

Fmoc-K/Cu2+ (2,4-DCP)

0.0232±0.0060

5.1200±1.916

0.0045

GMP/Cu2+ (2,4-DCP)

0.0010±0.0002

2.6660±0.7310

0.0004

Fmoc-K/GMP/Cu2+ (2,4-DCP)

0.2236±0.0120

0.6962±0.1200

0.3211

Fmoc-H/GMP/Cu2+ (2,4-DCP)

0.0751±0.0291

6.7900±3.0000

0.0111

Laccase (2,4-DCP)

5.924±0.1266

0.2912±0.0314

20.6200

Fmoc-K/GMP/Cu2+ (2,4,6-TCP)

1.0960±0.0880

0.2494±0.0540

4.6908

Laccase (2,4,6-TCP)

33.7720±1.038

0.2677±0.0351

128.8610

Fmoc-K/GMP/Cu2+ (2,3,5,6-TCP)

0.0800±0.0052

0.0683±0.0047

1.1826

Laccase (2,3,5,6-TCP)

1.767±0.5949

0.0440±0.0032

41.3633

Fmoc-K/GMP/Cu2+ (TMB)

1.3150±0.0270

0.8018±0.1150

1.6800

Laccase (TMB)

8.3038±1.7595

0.2374±0.1092

48.7215

Fmoc-K/GMP/Cu2+ (DTBC)

1.1960±0.0370

0.4530±0.0150

2.4247

Laccase (DTBC)

5.3164±0.3418

1.417±0.1370

3.1801

Fmoc-K/GMP/Cu2+ (DMP)

2.9500±0.8820

19.5700±8.4800

0.1507

Laccase (DMP)

15.6835±0.6139

0.0229±0.0029

684.2785