Fusion indices of HeV and NiV O-glycan mutants.

Normalized fusion values were divided by normalized CSE values for each mutant. As values for fusion and CSE for the WT proteins were by definition set at 100%, the WT fusion index was set as 1. Hyperfusogenic mutants are defined as ≥1.5, and hypofusogenic mutants are defined as ≤0.5. Hyper and hypo-fusogenic mutants are in bold. Averages are shown. Statistical analysis was performed using a Student’s t-test. Statistically significant differences are marked with an * (p<0.05).