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.
Designation of phospholipid torsion angles for the headgroup (αi), glycerol backbone (θi), sn-1 chain (γi), and sn-2 chain (βi). For the glycerol backbone: θ1 ≡ C(1)-C(2)-C(3)-O(31), θ2 ≡ O(21)-C(2)-C(3)-O(31), and θ3 ≡ O(11)-C(1)-C(2)-C(3), θ4 ≡ O(11)-C(1)-C(2)-O(21).
