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.
Schematic drawing of the primary step in the light-signal transduction in SRII (PDB entry 1H2S). Retinal photoisomerization causes the steric constraint between the C14H group and Thr204, by which the C14–D stretching vibration is enhanced. Light energy stored by the steric constraint is used for changing the protein structures, including the protein–protein interaction surface with HtrII.
