Relevant strain and plasmids used to clone and sequence
DNA adjacent to the pca operon from strain ADP1. Gene
designations are dca, dicarboxylic acid; pca,
protocatechuate; qui, quinate and shikimate; pob,
4-hydroxybenzoate; and ppa, phenylpropenoid and
phenylpropanoid. Above the layout of genetic sections, delineated by
the gray lines, are the outlines of pathways for dissimilation of
aromatic and hydroaromatic compounds. Genes required for the
illustrated biochemical transformations are shown above the related
arrows. Those encircled have homologs among the dca genes.
The deletion within strain ADP7529 was identified as part of this
study.