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In primary active transport, the proteins involved are pumps that normally use chemical energy in the form of ATP. ... The action of the sodium-potassium pump is an ...
Complex IV (EC 1.9.3.1) (also referred to as cytochrome c oxidase), is a proton pump driven by electron transport. This enzyme is a large transmembrane protein complex found in bacteria and inner mitochondrial membrane of eukaryotes.
The sodium–potassium pump (a type of P-type ATPase) is found in many cell (plasma) membranes and is an example of primary active transport.Powered by ATP, the pump moves sodium and potassium ions in opposite directions, each against its concentration gradient.
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.
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 ...
Protein TolC, the outer membrane component of a tripartite efflux pump in Escherichia coli. AcrB, the other component of pump, Escherichia coli. An efflux pump is an active transporter in cells that moves out unwanted material.
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.
The P-type ATPases, also known as E 1-E 2 ATPases, are a large group of evolutionarily related ion and lipid pumps that are found in bacteria, archaea, and eukaryotes. [1] P-type ATPases are α-helical bundle primary transporters named based upon their ability to catalyze auto- (or self-) phosphorylation (hence P) of a key conserved aspartate residue within the pump and their energy source ...