Fig. 1. Color switches of microbial rhodopsins, shown in the structure of a light-driven sodium pump KR2.
KR2 has L120, S254, and P219 in the L/Q switch, A/TS switch, and G/P switch, respectively.
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.