Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
pH dependence of fusion of S57K revertant viruses. Virus stocks were produced in BHK cells. Serial dilutions of virus were adsorbed to BHK cells for 90 min on ice. Virus-plasma membrane fusion was triggered by treatment at the indicated pH at 37°C for 3 min. Virus-infected cells were then quantitated by immunofluorescence and the results shown as the percentage of maximal fusion for each virus. Data represent averages and standard deviations of the results of 3 independent experiments.
