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. 2020 Aug 1;164:1693–1703. doi: 10.1016/j.ijbiomac.2020.07.235

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Fig. 1 — Spectroscopic properties of SARS-CoV-2 3CLpro. (a) Far-UV CD at 10 μM protein concentration. (b) Near-UV CD at 10 μM protein concentration. (c) Fluorescence at 2 μM protein concentration. All the spectra were recorded at pH 8.