Author/Authors :
Wang, Chunyan Shanghai Jiao Tong University - School of Agriculture and Biology - Shanghai Key Laboratory of Veterinary Biotechnology, China , Guo, Liang Shanghai Jiao Tong University - School of Agriculture and Biology - Shanghai Key Laboratory of Veterinary Biotechnology, China , Yu, Dayi Animal Disease Control Center of Min Hang District, China , Hua, Xiuguo Shanghai Jiao Tong University - School of Agriculture and Biology - Shanghai Key Laboratory of Veterinary Biotechnology, China , Yang, Zhibiao Shanghai Jiao Tong University - School of Agriculture and Biology - Shanghai Key Laboratory of Veterinary Biotechnology, China , Yuan, Congli Shanghai Jiao Tong University - School of Agriculture and Biology - Shanghai Key Laboratory of Veterinary Biotechnology, China , Cui, Li Shanghai Jiao Tong University - School of Agriculture and Biology - Shanghai Key Laboratory of Veterinary Biotechnology, China
Abstract :
Background: Hepatitis E virus (HEV) is a major causative agent of acute clinical hepatitis in adults through much of Asia, the Middle East and Africa. Open reading frame 3 (ORF3) encodes around 120 amino acids of phosphorylation protein that associates with the cytoskeleton, while its precise biological function is still unknown. Objectives: In order to understand the function of ORF3 protein (pORF3) in depth, HEV ORF3 interacting proteins were screened in human hepatocytes cDNA library using two-hybrid system techniques and further verification of the interactions were carried out through co-immunoprecipitation (Co-IP). Materials and Methods: The Cyto-Trap two-hybrid system technology, a classical method for analyzing protein interactions, was used to screen the pORF3 interacting proteins from human hepatocytes cDNA library. Results: Through the Cyto-Trap two-hybrid system, eight proteins interacting with pORF3 were winnowed. The Co-IP results confirmed that hepsin which is reported to function as the inhibitor of several tumors reacted with pORF3. Conclusions: Out of eight screened proteins interacting with pORF3, hepsin was confirmed to have specific interactions with pORF3.
Keywords :
ORF3 protein, Hepatitis E virus , Hepsin , Two , Hybrid System Techniques , Immunoprecipitation
