About the Arrestin-Rhodopsin Research at SLAC's X-Ray Laser. (VIDEO)
Caption
This video shows a 3-D rendering of a tiny signaling switch found in cells that involves arrestin (magenta), an important signaling protein, while docked with rhodopsin (green), a light-sensitive protein that is a type of G protein-coupled receptor (GPCR) found in the retina of our eyes. The cyan structure at the top is a protein called lysozyme that scientists added to more easily preserve and study the arrestin and rhodopsin structures. An experiment at SLAC's Linac Coherent Light Source, an X-ray laser, provided this first-ever atomic-scale map of arrestin coupled to a GPCR.
Credit
SLAC National Accelerator Laboratory
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