Skip to main content
Select Source:

bacteriorhodopsin

bacteriorhodopsin A membrane-bound protein manufactured by the halophilic (salt-resistant) archaebacterium Halobacterium salinarum that exploits light energy to make ATP without the involvement of chlorophyll-like pigments. When activated by light, it pumps protons out of the cell; this creates a concentration gradient, which enables ATP to be synthesized. Bacteriorhodopsin is composed of seven α-helix segments, which span the membrane and are joined together by short amino-acid chains. It contains the prosthetic group retinal, which is also found in the pigment rhodopsin in the rod cells of vertebrates.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"bacteriorhodopsin." A Dictionary of Biology. . Encyclopedia.com. 23 Aug. 2017 <http://www.encyclopedia.com>.

"bacteriorhodopsin." A Dictionary of Biology. . Encyclopedia.com. (August 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/bacteriorhodopsin-0

"bacteriorhodopsin." A Dictionary of Biology. . Retrieved August 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/bacteriorhodopsin-0

bacteriorhodopsin

bacteriorhodopsin A protein pigment found in certain species of bacteria of the genus Halobacterium. Bacteriorhodopsin is responsible for a unique method of harnessing the energy of sunlight for use by the bacteria.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"bacteriorhodopsin." A Dictionary of Plant Sciences. . Encyclopedia.com. 23 Aug. 2017 <http://www.encyclopedia.com>.

"bacteriorhodopsin." A Dictionary of Plant Sciences. . Encyclopedia.com. (August 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/bacteriorhodopsin

"bacteriorhodopsin." A Dictionary of Plant Sciences. . Retrieved August 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/bacteriorhodopsin