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) Binding characteristics of the bisresorcinol (blue) and ursolic acid (red) to the active site of pig elastase; (B–C), Ligand-protein interaction diagrams of ursolic acid (B–C) and the bisresorcinol (D–E); Interactions involved π-π stacking, hydrogen bonds, and Van der Waals force, depicted in pink, green, and grey, respectively.
