Table 3.

Different class II fusion proteins

Class II virus family	Virus	Fusion protein	Fusion subunit	Fusion peptide location	Fusion pH
Flaviviridae	Dengue virus	E	E	Internal	Low
Alphaviridae	Semliki Forest Virus	E1	E1	Internal	Low
Bunyaviridae	Hantavirus	GN/GC (GN/GC)	GC	Internal	Low