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. 2018 Aug 14;8:12143. doi: 10.1038/s41598-018-30547-x

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Biochemical analysis of Arr-wd 1–4 proteins. (a) A representative HPLC trace of rifampin ADP-ribosylation by Arr-wd proteins. (b–d) Steady-state ADP-ribosyltransferase activities of Arr-wd proteins together with the reported values of Arr proteins. (b) Turnover numbers, k_cat (s⁻¹) (c) Catalytic efficiencies, k_cat/K_M (s⁻¹ M⁻¹) (d) Michaelis constants, K_M (mM) (e) Dissociation constants, K_D (mM) (f) MIC values (μg/mL). Values reported in (b–d) and (e) are derived from the fit to the Michaelis-Menten equation and Stern-Volmer equation, respectively.