Models of THOV GP and AcMNPV GP64 based on the X-ray crystallographic structure of VSV G. The predicted structures of THOV GP and AcMNPV GP64 were fit to the post-fusion structure of VSV G . Secondary structures for THOV GP and AcMNPV GP64 were predicted by PHD or by alignment to VSV G. The structure of HSV-1 gB  is shown for comparison. Domain coloring as in Fig. 1 and Fig. 2A. Orange/black lines: dicysteine linkages as in Fig. 2. Black stick figures: N-glycosylation sites.