HSPA8 and infection: VER-155008, a specific inhibitor, is generally used for HSC70 competitive inhibition tests and prevents hydrolysis catalyzed by the ATPase domain of HSC70, resulting in conformational changes in the HSC70 protein that make it impossible for IBDV to recognize HSC70 properly and interfering with the specific binding of IBDV to the HSC70 receptor protein; this hinders the infection and replication of the virus.