Fig. 1From: Characterization of enzymatic properties of two novel enzymes, 3,4-dihydroxyphenylacetate dioxygenase and 4-hydroxyphenylacetate 3-hydroxylase, from Sulfobacillus acidophilus TPYIdentification of DHPAO activity in E. coli by spraying the plates with 0.1 M catechol (a) or 0.025 M 3,4-DHPA (b)Back to article page