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. 2022 Mar 18;78:103943. doi: 10.1016/j.ebiom.2022.103943

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© 2022 The Author(s)

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

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Fig 4 — Identified of plumbagin directly interact with Tet(X3)/Tet(X4) protein. (a,b) BLI sensors monitored the real-time association and dissociation kinetics of Tet(X3)/Tet(X4) (captured on the surface of anti-GST antibody coated BLI sensors) with different concentrations of plumbagin and the binding parameters of Tet(X3)/Tet(X4) with plumbagin were shown in the table, respectively. And circular dichroism (CD) spectra of Tet(X3) (c) and Tet(X4) (d) were obtained to further analyze the effect of plumbagin on the secondary structure of the protein. The wavelength of CD spectroscopy was set as 190-250 nm.