title: WSSV envelope protein VP51B links structural protein complexes and may mediate virus infection.
abstract: White spot syndrome virus (WSSV), an enveloped double-stranded DNA virus, is the causative agent of a disease that has led to severe mortalities of cultured shrimps in Taiwan and many other countries. In the previous study, Penaeus monodon chitin-binding protein (CBP) and glucose transporter 1 (Glut1), two cell membrane proteins, were found to at least interact with other 10 WSSV envelope proteins including VP51B. These envelope proteins might form a protein complex. According to the known information, VP51B was used to identify its role in the protein complex. Western blotting of the intact viral particles and fractionation of the viral components confirmed that VP51B is one of WSSV envelope proteins. In this study, the protein-protein interaction between VP51B and other WSSV envelope proteins was identified by far-western blot experiment and VP51B was found to interact with VP24, VP31, VP32, VP39B and VP41A. Furthermore, the in vivo neutralization experiment using recombinant VP51B plus with VP39B showed the best inhibition. These data indicate that VP51B participates in the WSSV protein complex and plays an important role in WSSV infection.
authors.affiliation: Doctoral Degree Program in Marine Biotechnology, National Taiwan Ocean University, Keelung, Taiwan, ROC.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Lee
authors.affiliation: Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan, ROC.
authors.forename: L L
authors.initials: LL
authors.lastname: Chen
mesh_terms: D000818:Animals; D026481:Blotting, Far-Western; D020869:Gene Expression Profiling; D033561:Penaeidae / Q000821:virology*; D011485:Protein Binding; D014759:Viral Envelope Proteins / Q000235:genetics* / Q000378:metabolism; D046848:White spot syndrome virus 1 / Q000502:physiology*
chemical_list: D014759:Viral Envelope Proteins
keywords: chitin-binding protein; envelope protein; infectome; protein complex; white spot syndrome virus