TABLE 2.

Substrate specificity of HQDO from P. fluorescens ACB

Substrate (200 μM)	Activity (%)a
Hydroquinone	100
Methylhydroquinone	120
Methoxyhydroquinone	50
Chlorohydroquinone	70
Bromohydroquinone	30
2,3-Difluorohydroquinone	80
2,5-Difluorohydroquinone	75
3,5-Difluorohydroquinone	90

^aActivity expressed as relative absorbance increase at 320 nm.