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.
A, wild-type HA; B, E374K mutant. Protein is shown as green ribbons. Amino acids surrounding position 374 are illustrated as sticks. In the wild-type HA, E374 interacts with Y433 and N366 and with the fusion peptide through water-mediated hydrogen bonds. In E374K, the lysine residue interacts only with the oxygen from the amide group of N366.
