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View full-text article in PMC

. 2023 Jun 29;299(8):104977. doi: 10.1016/j.jbc.2023.104977

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© 2023 The Authors

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Azole compound effects on¹⁹F-T103C and¹⁹F-T333C. Spectra acquired in the presence of 5-fold excess concentrations of fluconazole, ketoconazole, and clotrimazole were compared to the ligand-free spectrum. Changes in ¹⁹F-T103C (A) are not predicted by the final absorbance values, while changes in ¹⁹F-T333C (B) appear to respond entirely to the spin state of the heme. Absorbance values were measured directly from samples prior to NMR data acquisition.