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.
Structure of H5Nx NA. (A) The overall structure of the NA tetramer is shown. One monomer is highlighted in rainbow colors, with the position of the enzyme active site indicated by an arrow. (B) Overlap of the NA active site in N1 NA (green), N8 NA (cyan), N2 NA (magenta), and N6 NA (yellow),\with surrounding variable loops.
