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Table 3 Substrate specificity of DHPAO

From: Characterization of enzymatic properties of two novel enzymes, 3,4-dihydroxyphenylacetate dioxygenase and 4-hydroxyphenylacetate 3-hydroxylase, from Sulfobacillus acidophilus TPY

Substrates

Relative activity (%)

Catechol

100

Pyrogallol

28.42 ± 1.69

3-Methylcatechol

76.87 ± 2.55

4-Methylcatechol

109.17 ± 0.32

3,4-Dihydroxybenzoic acid

33.09 ± 1.37

3,4-Dihydroxyphenylacetic acid

212.36 ± 1.55

3,4-Dihydroxybenzaldehyde

<1

Tetrabromocatechol

<1

Phloroglucinol

–

4-Nitrocatechol

–