5TCY:
reference: Interactions of the periplasmic binding protein CeuE with Fe(III) n-LICAM4- siderophore analogues of varied linker length., Wilde EJ, Hughes A, Blagova EV, Moroz OV, Thomas RP, Turkenburg JP, Raines DJ, Duhme-Klair AK, Wilson KS, Sci Rep. 2017 Apr 6;7:45941. doi: 10.1038/srep45941. PMID: 28383577

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