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.
Secondary structure is clearly resolved. (A) A β-sheet with two bulky aromatic residues. The presence of such large side chains allows for an unambiguous threading of the sequence through the density map. (B) A portion of the N-terminal α-helix, again showing two clearly resolved bulky aromatics.
