Bacteria express siderophore receptor proteins that specifically recognize the iron complexes of their native sideorphores. To ensure a competitive growth advantage bacteria commonly possess the machinery to recognize and transport siderophore-iron complexes produced by other species (Challis and Hopwood 2003).
Along this evolutionary pathway certain bacteria have also learned to exploit this “iron thievery” for antibiotic delivery by attaching toxic substances to siderophores. Some of these naturally occurring siderophore-drug conjugates, also referred to as sideromycins, include the danomycins (Huber et al. 1986), salmycins (Fig. 2) (Vértesy et al. 1995), albomycins (Fig. 2) (Benz et al. 1982; Gause 1955), ferrimycins (Bickel et al. 1960; Bickel et al. 1965; Sackman et al. 1962), and microcins (Thomas et al. 2004).
Bacteria express siderophore receptor proteins that specifically recognize the iron complexes of their native sideorphores. To ensure a competitive growth advantage bacteria commonly possess the machinery to recognize and transport siderophore-iron complexes produced by other species (Challis and Hopwood 2003). Along this evolutionary pathway certain bacteria have also learned to exploit this “iron thievery” for antibiotic delivery by attaching toxic substances to siderophores. Some of these naturally occurring siderophore-drug conjugates, also referred to as sideromycins, include the danomycins (Huber et al. 1986), salmycins (Fig. 2) (Vértesy et al. 1995), albomycins (Fig. 2) (Benz et al. 1982; Gause 1955), ferrimycins (Bickel et al. 1960; Bickel et al. 1965; Sackman et al. 1962), and microcins (Thomas et al. 2004).
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