Bacteriorhodopsin | |||||||
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![]() Halobacterium salinarum bacteriorhodopsin homotrimer viewed from the cytoplasm. Bound retinal shown in black. PDB: 6RQP | |||||||
Identifiers | |||||||
Organism | |||||||
Symbol | bop | ||||||
UniProt | P02945 | ||||||
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Bacteriorhodopsin (Bop) is a protein used by Archaea, most notably by haloarchaea, a class of the Euryarchaeota.[1] It acts as a proton pump; that is, it captures light energy and uses it to move protons across the membrane out of the cell.[2] The resulting proton gradient is subsequently converted into chemical energy.[3]