Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
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connected to the .gov website. Share sensitive
information only on official, secure websites.
Sites under positive selection mapped on domain organization of spike (a,b) 3D structure (PDB ID: 7DF3). Note: Sites are color coded as B-cell epitopes (blue), T-cell epitopes (yellow), common to T- and B-cell epitopes (green), Others (magenta), and substitutions to be monitored in VoC/VoI (red).
