An official website of the United States government
Here's how you know
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.
The number of intramolecular and intermolecular hydrogen bonds that form between different H-bond donors and acceptors at the phosphate group (O7, O9, O10, and O11) and the ester group (O14, O16, O33, and O35) in the POPA bilayer