The conservation of His-110–containing segment in ACMSD. The nonredundant sequences' BLAST of ACMSD was performed across all organisms, and the alignment results were shown by the Weblogo motif (top) (74), in prokaryotes (taxid 2; middle), and in selected strains (bottom) capable of degradating nitrobenzoic acids, including Achromobacter, Ralstonia, Pseudomonas, Cupriavidus, Paraburkholderia, Herbaspirillum, Caballeronia, and Duganella.