Shrimp were injected with two viral proteins, but only rVP28 triggered resistance against WSSV.
20 differentially expressed proteins were identified by 2-DE/MS analysis after vaccination.
Many proteins with their expression levels also participate in the shrimp's response during WSSV infection.
Chymotrypsin and trypsin were significantly increased in shrimp of both vaccinated groups compared to PBS controls.
The up-regulated proteins exclusively in rVP28-vaccinated shrimp include calreticulin, HSP70, ubiquitin and others.