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Bacteriorhodopsin is a light-driven proton pump used by Archaea, most notably in Haloarchaea. Light is absorbed by a retinal pigment covalently linked to the protein, that results in a conformational change of the molecule that is transmitted to the pump protein associated with proton pumping. [citation needed]
A transport protein (variously referred to as a transmembrane pump, transporter, escort protein, acid transport protein, cation transport protein, or anion transport protein) is a protein that serves the function of moving other materials within an organism. Transport proteins are vital to the growth and life of all living things.
Protein-protein interactions play a very important role in Na +-K + pump-mediated signal transduction. For example, the Na +-K + pump interacts directly with Src, a non-receptor tyrosine kinase, to form a signaling receptor complex. [15] Src is initially inhibited by the Na +-K + pump. However, upon subsequent ouabain binding, the Src kinase ...
Proteorhodopsin (also known as pRhodopsin) is a family of transmembrane proteins that use retinal as a chromophore for light-mediated functionality, in this case, a proton pump. pRhodopsin is found in marine planktonic bacteria, archaea and eukaryotes (), but was first discovered in bacteria.
Diffusion vs. Transport. In biology, an ion transporter is a transmembrane protein that moves ions (or other small molecules) across a biological membrane to accomplish many different biological functions, including cellular communication, maintaining homeostasis, energy production, etc. [1] There are different types of transporters including pumps, uniporters, antiporters, and symporters.
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To be specific, the protein is a part of the P-type ATPase family. The systematic name of this enzyme class is ATP phosphohydrolase (H +-exporting). H +-exporting ATPase is also known as proton ATPase or more simply proton pump. Other names in common use include proton-translocating ATPase, yeast plasma membrane H +-ATPase, plant plasma ...
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