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. 2018 Apr 24;9:776. doi: 10.3389/fmicb.2018.00776

FIGURE 3.

FIGURE 3

Phylogenetic tree of substrate specific components of ABC transport systems presumably involved in transport of α-AOS. Transporter subunits from the same orthologous group are highlighted with the same background color. The name of each group is given. Circles represent candidate binding sites of various regulators preceding a transporter gene: green – AraQ; purple – AbfR; olive – AauR.