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Chemical structures of selected siderophores: enterobactin (E. coli), bacillibactin (B. cereus), carboxymycobactin T (M. tuberculosis), salmochelin S4 (S. enterica, uropathogenic E. coli strains), pyoverdine type II (P. aeruginosa strain ATCC27853), pyochelin (Pseudomonas spp.), petrobactin (B. cereus, B. anthracis) and, for comparison, an artificial derivative of diethylenetriaminepentaacetic acid (DTPA) as a metal chelator with applications in nuclear medicine.
