Bacteriorhodopsin: Difference between revisions

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{{STRUCTURE_1kg8| PDB=1kg8 | SIZE=400| SCENE= |right|CAPTION=Bacteriorhodopsin complex with lipid and retinal, [[1kg8]] }}
{{STRUCTURE_3han| PDB=3han | SIZE=400| SCENE= |right|CAPTION=Bacteriorhodopsin complex with lipid and retinal, [[3han]] }}


'''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.   
'''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.