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.
Darker squares correspond to less frequent loop-flipping events according to the logarithmic color map. Gray dots indicate the number of positively charged residues on each loop. For each mutant, the red box indicates the slowest-flipping loop.
