B subunit of cholera toxin fused with VP7 from GCRV (grass carp reovirus) was expressed in E. coli and folds into an active protein

An Aquareovirus Exploits Membrane-Anchored HSP70 To Promote Viral Entry

“…4C ). VP7 is one of the major outer capsid proteins of GCRV and has previously been proven to function as a key neutralizing antigen for GCRV infection and immune escape ( 19 , 21 , 22 , 28 ). Nevertheless, the role of VP7 in the viral early phase of infection remains largely unknown.…”