FIG. 2.

Neutralization by HNS2 of viruses pseudotyped with R2 or MACS strain 3, 4, or 9 envelope, each with the PM (□) or HI/SI (▪) sequence at residues 313 and 314. Error bars indicate the SD calculated for each data point. The 50% neutralization endpoints were calculated using methods similar to those described in the Fig. 1 legend. Values obtained from duplicate experiments are shown below each vertical dashed line.