Homogentisate and homoprotocatechuate ring-cleavage dioxygenase activities of <i>B. xenovorans</i> LB400.

<p>Cells were grown in minimal medium using 3-HPA (squares), 4-HPA (triangles) and glucose (empty circles) as sole carbon source. A, HMG dioxygenase activity measured by maleylacetoacetate (MA) formation in crude extracts; B, HPC dioxygenase activity measured 5-carboxymethyl-2-hydroxy-muconic semialdehyde (CHMS) product formation in resting cells of strain LB400.