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. Author manuscript; available in PMC: 2022 May 1.
Published in final edited form as: FASEB J. 2021 May;35(5):e21552. doi: 10.1096/fj.202100027R

Figure 4. Indole metabolites exhibit ligand binding to myeloperoxidase by NMR Saturation Transfer Difference (STD).

Figure 4.

1D 1H-STD NMR spectra of 9 μM rhMPO in association with 1 mM aqueous solutions of the ligands (A) indole, (B) indole-3-propionic acid, (C) tryptophan, (D) 4-ABAH. The corresponding ligand structure is shown on top of each spectrum.