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. 2018 Feb 8;115(8):1718–1723. doi: 10.1073/pnas.1715496115

Fig. 4.

Fig. 4.

Representative extracted ion chromatograms of the competitive TnaA AT-ACP depletion assay, including the (A) boiled enzyme negative control, (B) no enzyme negative control, and (C) test reaction using all components. Peaks are labeled according to the respective substrates. 13: bromophenylacetyl-SNAC; 14: phenylacetyl-SNAC; 15: cinnamoyl-SNAC; 16: acetyl-SNAC; 17: β-hydroxy-butanyl-SNAC; 18: S-(2-acetamidoethyl) 4-oxopentanethioate; 19: S-(2-acetamidoethyl) 2-methyloxazole-4-carbothioate; 20: S-(2-acetamidoethyl) 2-methylthiazole-4-carbothioate; and 21: free N-acetylcysteamine. Averaged triplicates of this experiment are shown in SI Appendix, Fig. S4. Underlying mass spectra of the corresponding compounds are depicted in SI Appendix, Figs. S5 and S6.