Bacteriorhodopsin
From Proteopedia
Bacteriorhodopsin (Br) is a membrane protein in Archaea which moves protons across the cell membrane. Br is composed of 6 α-helical elements each containing a retinal molecule. The retinal changes its conformation upon binding of a proton, causing the Br to change conformation and pump the proton.
3D Structures of bacteriorhodopsin
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Michal Harel, Alexander Berchansky, Wayne Decatur, Jaime Prilusky, Joel L. Sussman
