Fig 6. Identity of domains in the six-domain S1 protein.
Average percentage of identity between domains and within separate domains is given in the figure.
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.