title: Crystallization and preliminary crystallographic study of Porcine epidemic diarrhea virus main protease in complex with an inhibitor.
abstract: Porcine epidemic diarrhea virus (PEDV) mainly infects neonatal pigs, resulting in significant morbidity and mortality. Owing to problems such as long periods of virus shedding, existing vaccines cannot provide complete protection from PEDV infection. The PEDV genome encodes two polyprotein precursors required for genome replication and transcription. Each polyprotein undergoes extensive proteolytic processing, resulting in functional subunits. This process is mainly mediated by its genome-encoded main protease, which is an attractive target for antiviral drug design. In this study, the main protease of Porcine epidemic diarrhea virus in complex with a Michael acceptor was crystallized. The complex crystals diffracted to 2.5 Å resolution and belonged to space group R3, with unit-cell parameters a = 175.3, b = 175.3, c = 58.7 Å. Two molecules were identified per asymmetric unit.
authors.affiliation: School of Life Sciences, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Yusheng
authors.initials: Y
authors.lastname: Tan
authors.affiliation: School of Life Sciences, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Fenghua
authors.initials: F
authors.lastname: Wang
authors.affiliation: School of Life Sciences, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Xia
authors.initials: X
authors.lastname: Chen
authors.affiliation: School of Life Sciences, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Jinshan
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Molecular Biophysics and Biochemistry, Yale University School of Medicine, New Haven, CT 06520, USA.
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhao
authors.affiliation: Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, People's Republic of China.
authors.forename: Shuang
authors.initials: S
authors.lastname: Li
authors.affiliation: School of Life Sciences, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Zefang
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, People's Republic of China.
authors.forename: Sheng
authors.initials: S
authors.lastname: Fu
authors.affiliation: School of Life Sciences, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Chen
authors.affiliation: School of Life Sciences, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Haitao
authors.initials: H
authors.lastname: Yang
mesh_terms: D003460:Crystallization; D018360:Crystallography, X-Ray; D010447:Peptide Hydrolases / Q000737:chemistry*; D053485:Porcine epidemic diarrhea virus / Q000201:enzymology* / Q000235:genetics / Q000502:physiology; D011480:Protease Inhibitors / Q000737:chemistry*; D014779:Virus Replication
chemical_list: D011480:Protease Inhibitors; D010447:Peptide Hydrolases
keywords: N3 inhibitor; Porcine epidemic diarrhea virus; main protease