Search results
Results from the WOW.Com Content Network
Adenosine diphosphate (ADP) is an organic compound that stores and transfers energy in living cells. It is formed by removing a phosphate group from adenosine triphosphate (ATP) and can be converted back to ATP by adding a phosphate group.
Learn about the structure, properties, and functions of ATP, the "molecular unit of currency" for intracellular energy transfer. ATP is a nucleotide composed of adenine, ribose, and three phosphate groups, which can bind metal cations and undergo hydrolysis.
ATP synthase is a molecular machine that catalyzes the formation of adenosine triphosphate (ATP) using adenosine diphosphate (ADP) and inorganic phosphate (P i ). It consists of two regions, F O and F 1, that work together to create a proton gradient and a rotational motor mechanism across a cellular membrane.
Cyclic ADP-ribose, frequently abbreviated as cADPR, is a cyclic adenine nucleotide (like cAMP) with two phosphate groups present on 5' OH of the adenosine (like ADP), further connected to another ribose at the 5' position, which, in turn, closes the cycle by glycosidic bonding to the nitrogen 1 (N 1) of the same adenine base (whose position N 9 has the glycosidic bond to the other ribose).
Facilitated diffusion is the passive transport of molecules or ions across a membrane via specific proteins. Learn how glucose, sodium, chloride, oxygen, and transcription factors are examples of facilitated diffusion and how it differs from simple diffusion.
Learn about the types and functions of membrane transport proteins, such as channels, carriers, and pumps. Find out how they move ions, molecules, and macromolecules across biological membranes by facilitated diffusion, active transport, osmosis, or reverse diffusion.
Glycolysis is a sequence of ten reactions that convert glucose to pyruvate and produce ATP and NADH. Learn about the history, mechanism, and regulation of glycolysis, as well as its role in aerobic and anaerobic respiration.
ADP-ribosylation is a post-translational modification that involves adding ADP-ribose groups to proteins. It is involved in various cellular processes, such as signaling, repair, gene regulation and apoptosis, and can be reversed by (ADP-ribosyl)hydrolases.