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Table 6 Inactivation of HQDO by iron(II) modifying substances

From: Purification and characterization of hydroquinone dioxygenase from Sphingomonas sp. strain TTNP3

Inactivation substance

Substance concn (mM)

% activity after incubation at 30°C

SD (%)

ortho-phenanthroline

1

1%a

0.4

 

0.1

22%a

1.0

2,2'-dipyridyl

1

23%a

2.9

 

0.1

59%a

4.5

hydrogen peroxide

0.1

3%b

0.1

  1. a Incubation time 15 min
  2. b Incubation time 1 min