Figure 9.
Genetic organization and functional comparison of the hpa operon in B. cytotoxicus strains. Putative functions are as follows: lysR – regulator of the operon; hpaI - 2,4-dihydroxyhept-2-ene-1,7-dioic acid aldolase; hpaE - 5-carboxymethyl-2-hydroxymuconate semialdehyde dehydrogenase; hpaD - 3,4-dihydroxyphenylacetate 2,3-dioxygenase; Cyt-T – cytidyltransferase; acetate transporter - cation acetate symporter; hpaG - 2-hydroxyhepta-2,4-diene-1,7-dioate isomerase; hpaF - 5-carboxymethyl-2-hydroxymuconate Delta-isomerase; tetratricop. Prot - tetratricopeptide repeat protein. The 330-bp hypothetical gene between Cyt-T and the acetate transporter is not shown.