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Figure 1
The coprogens: hydroxamate siderophores produced by fungi. (a) Bidentate coordination of Fe3+ by the siderophore catecholate and hydroxamate functional groups. (b) Hydroxamate siderophores produced by fungi (rhodotorulic acid and coprogen) and bacteria (desferrioxamine B). Hydroxamate functional groups are highlighted in red, the fusarinine group of coprogen in aqua and the dangling group of desferrioxamine B in green. (c) A two-dimensional representation of Fe3+ coordination by coprogen.

IUCrJ
Volume 6| Part 3| May 2019| Pages 401-411
ISSN: 2052-2525
https://doi.org/10.1107/S2052252519002926