Figure 5: Demonstration of the H5HA-BmNPV infected Bm-N cells. Firstly, normal Bm N cells were infected with wild type Bm- NPV (A). In these cells occlusion bodies were clearly observed but no hamadsorption. In contrast, hamadsorptions widely confirmed in all infected cells. Also, fluorescence were confirmed in most of big cells. Western blot analysis clearly revealed the 71.8 kD (Bm-N cells) and 76.4 kD in human HeLa cells, respectively. The differences molecular weight between silkworm and human cells may be the structure of carbohydrate chain attached to the HA protein.