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.
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.
More From encyclopedia.com
Organelle , An organelle is a tiny structure inside a cell that performs a particular function. Organelles are only found in eukaryotic cells (those with a disti… Cytoplasm , The term cytoplasm refers to the contents of a cell, excluding its nucleus. More specifically, cytoplasm refers to the jelly-like or semisolid fluid… Eubacteria , Eubacteria
The Eubacteria, also called just "bacteria," are one of the three main domains of life, along with the Archaea and the Eukarya. Eubacteria… Active Transport , Active transport is the movement of molecules up their concentration gradient , using energy.
Concentration Gradients
The concentration of most molec… Nucleotides , Nucleotides
Nucleotides are the subunits that are linked to form the nucleic acids ribonucleic acid (RNA) and deoxyribonucleic acid (DNA), which serv… Catabolism , Catabolism is the breakdown of large molecules into small molecules. Its opposite process is anabolism , the combination of small molecules into larg…
About this article
Bacteriorhodopsin
All Sources -
You Might Also Like
NEARBY TERMS
Bacteriorhodopsin