Table 1. Comparison of VLP yield according to promoter type (units: mg/L).

Predicted MW (kDa)	Promoter type
	CMV-IE	Lef3	gp41	chitinase	*gp41 extracellular
Viral antigen expected in the EV71 virion (<40kDa)	2.3	10	11.3	7	2.4
Total viral protein (including incomplete processed viral polypeptides)	11.2	41.4	43.1	32.7	5.1

* Concentrated cell supernatant. VLP, virus-like particle; MW, molecular weight