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. Author manuscript; available in PMC: 2012 Dec 16.
Published in final edited form as: ACS Chem Biol. 2011 Oct 21;6(12):1327–1331. doi: 10.1021/cb200331g

Figure 1.

Figure 1

Molecular structure of Carboxymycobactin (CMB, left, where n = 3–10 in the fatty acid tail). CMB is a hexadentate ligand that forms a mononuclear ferric complex with iron (1:1 Fe:CMB). Iron binding atoms shown in red. To the right, fluorescence binding analysis of Scn (0.1 μM) with FeIIICMB isoforms (n = 3–8) at pH 7.4. Symbols indicate fluorescence data at and lines are calculated non-linear least squares fits (DYNAFIT (25)).