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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: Metallomics. 2013 Aug;5(8):988–996. doi: 10.1039/c3mt20254b

Figure 1. Structures of natural siderophores and synthetic siderophore analogs used in this study.

Figure 1

Chemical models of siderophore analogs used in this study. DHB = 2,3-dihydroxybenzoic acid. The TREN (tris(2-aminoethyl)amine) based analogs consist of a TREN backbone, a linker region (gly=glycine, ser = serine, lys = lysine, glu=glutamate, bal= β-alanine) and a CAM (catecholamide) group. TRENmeCAM and TRENbutCAM have additional methyl (me) or butyl (but) groups respectively on the catecholamide ring.