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. 2021 Aug 27;13(9):599. doi: 10.3390/toxins13090599

Figure 1.

Figure 1

Phylogeny and predicted tertiary structure of ArtAB and closely related AB5 toxins. (A) phylogenetic analysis of enzymatically active (A) subunits of AB5 toxins, and (B) binding (B) subunits of AB5 toxins, as constructed with MEGA7 software using a maximum-likelihood method based on the JTT matrix-based model [24]. (C) I-TASSER Salmonella DT104 ArtAB tertiary structure prediction based on E. coli SubB and S. Typhi PltA subunit crystal structures showing the pentameric B subunit (gold) and the active A subunit (blue) [32].