id author title date pages extension mime words sentences flesch summary cache txt cord-336517-v7z62tld Chu, Hsu-Feng Porcine epidemic diarrhea virus papain-like protease 2 can be noncompetitively inhibited by 6-thioguanine 2018-08-20 .txt text/plain 5193 324 59 Further studies suggest that PEDV PL2 pro exhibits much higher DUB activity than that of SARS-and MERS-CoV PL pro s and can be inhibited by the anti-leukemia drug 6-thioguanine (6TG). Previous studies suggested that the Ubl domain was not involved in the catalytic activity of SARS-and MERS-CoV PL pro s (Chou et al., 2012; Clasman et al., 2017) . Overall, the secondary, tertiary and quaternary structures of the PEDV PL2 pro catalytic core are similar to those of SARS-and MERS-CoV PL pro s, even though their sequence identity is only 22-25% (Fig. S1 ). In contrast, previous studies suggested that the binding site of 6TG for SARS-and MERS-CoV PL pro s may be near the catalytic triad's cysteine residue due to its competitive pattern of inhibition Chou et al., 2008) . Structural and mutational analysis of the interaction between the Middle-East respiratory syndrome coronavirus (MERS-CoV) papain-like protease and human ubiquitin ./cache/cord-336517-v7z62tld.txt ./txt/cord-336517-v7z62tld.txt