Search results
Results From The WOW.Com Content Network
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 ...
Active transport is essential for various physiological processes, such as nutrient uptake, hormone secretion, and nerve impulse transmission. For example, the sodium-potassium pump uses ATP to pump sodium ions out of the cell and potassium ions into the cell, maintaining a concentration gradient essential for cellular function. Active ...
Bacteriorhodopsin is a light-driven proton pump. It is the retinal molecule that changes its isomerization state from all-trans to 13-cis when it absorbs a photon. The surrounding protein responds to the change in the chromophore shape, by undergoing an ordered sequence of conformational changes (collectively known as the photocycle). [17]
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 ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
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.