The here-reported identification of the LexA-binding sequence of Bdellovibrio bacteriovorus,
a bacterial predator belonging to the δ-Proteobacteria, has made possible a detailed study
of its LexA regulatory network. Surprisingly, only the lexA gene and a multiple gene cassette
including dinP and dnaE homologues are regulated by the LexA protein in this bacterium. In
vivo expression analyses have confirmed that this gene cassette indeed forms a
polycistronic unit that, like the lexA gene, is DNA damage inducible in B. bacteriovorus …

The here-reported identification of the LexA-binding sequence of Bdellovibrio bacteriovorus,
a bacterial predator belonging to the delta-Proteobacteria, has made possible a detailed
study of its LexA regulatory network. Surprisingly, only the lexA gene and a multiple gene
cassette including dinP and dnaE homologues are regulated by the LexA protein in this
bacterium. In vivo expression analyses have confirmed that this gene cassette indeed forms
a polycistronic unit that, like the lexA gene, is DNA damage inducible in B. bacteriovorus …