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. Author manuscript; available in PMC: 2011 Oct 6.
Published in final edited form as: J Am Chem Soc. 2006 Aug 30;128(34):10998–10999. doi: 10.1021/ja062476+

Table 2.

Siderocalin Affinity for Ferric Ent and Salmochelin S4 Analogues at pH 7.4

Siderocalin Ligand Kd, nM (esd’s)
[FeIII(SERMECAM)]3− No Binding
[FeIII(SER-t-BUCAM)]3− No Binding
[FeIII(TRENCAM)]3− 0.32(1)
[FeIII(TREN(CAM)2(MECAM)]3− 0.49(6)
[FeIII(TREN(CAM)(MECAM)2]3− 1.93(70)
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