Results 61 to 70 of about 10,406 (171)
Penetrating cardiac injury repaired under “intentional cardiac arrest” with adenosine triphosphate
Acute Medicine & Surgery, 2021 Background Repairing a cardiac injury with beating heart is sometimes difficult and is associated with increased risks of complications. Here we report a case of cardiac injury repaired with administration of adenosine triphosphate (ATP).
Kazuki Hagiwara +3 more
doaj +1 more source
Monitoring transient elastic energy storage within the rotary motors of single FoF1-ATP synthase by DCO-ALEX FRET [PDF]
, 2012 The enzyme FoF1-ATP synthase provides the 'chemical energy currency' adenosine triphosphate (ATP) for living cells. Catalysis is driven by mechanochemical coupling of subunit rotation within the enzyme with conformational changes in the three ATP binding sites.
arxiv +1 more source
Frontiers in Pharmacology, 2020 It is well established that altered purinergic signaling contributes to vascular dysfunction in type 2 diabetes (T2D). Red blood cells (RBCs) serve as an important pool for circulating ATP and the release of ATP from RBCs in response to physiological ...
Ali Mahdi +9 more
doaj +1 more source
36 degree step size of proton-driven c-ring rotation in FoF1-ATP synthase [PDF]
arXiv, 2009 Synthesis of the biological "energy currency molecule" adenosine triphosphate ATP is accomplished by FoF1-ATP synthase. In the plasma membrane of Escherichia coli, proton-driven rotation of a ring of 10 c subunits in the Fo motor powers catalysis in the F1 motor. While F1 uses 120 degree stepping, Fo models predict a step-by-step rotation of c subunits
arxiv
Diffusion properties of single FoF1-ATP synthases in a living bacterium unraveled by localization microscopy [PDF]
, 2012 FoF1-ATP synthases in Escherichia coli (E. coli) bacteria are membrane-bound enzymes which use an internal proton-driven rotary double motor to catalyze the synthesis of adenosine triphosphate (ATP). According to the 'chemiosmotic hypothesis', a series of proton pumps generate the necessary pH difference plus an electric potential across the bacterial ...
arxiv +1 more source
On the Adenosine Triphosphate-Myosin System
Experimental Biology and Medicine, 1942 SummaryAcetylcholine, epinephrine, a series of alkaloids, and several other substances were without influence on the hydrolysis of adenosine triphosphate. Copper and zinc salts inhibited the reaction.
Erwin Chargaff, Morris Ziff
openaire +2 more sources
Role of the phosphocreatine system on energetic homeostasis in skeletal and cardiac muscles
Einstein (São Paulo)Adenosine triphosphate is the present energy currency in the body, and is used in various cellular and indispensable processes for the maintenance of cell homeostasis.
Lucas Guimarães-Ferreira
doaj +1 more source
The regulatory switch of F1-ATPase studied by single-molecule FRET in the ABEL Trap [PDF]
, 2014 F1-ATPase is the soluble portion of the membrane-embedded enzyme FoF1-ATP synthase that catalyzes the production of adenosine triphosphate in eukaryotic and eubacterial cells. In reverse, the F1 part can also hydrolyze ATP quickly at three catalytic binding sites. Therefore, catalysis of 'non-productive' ATP hydrolysis by F1 (or FoF1) must be minimized
arxiv +1 more source
Development of Carbon-Fiber Electrodes Modified for Electrochemical ATP Detection [PDF]
arXiv, 2018 Adenosine triphosphate (ATP) is a highly energetic molecule used as a coenzyme in the transfer of chemical energy required for the continuation of cellular metabolism. In addition, extracellular ATP has an important role in cell-to-cell communication in immune, nervous and vascular systems.
arxiv
Platelets, 2018 Signaling mediated by purines is a widespread mechanism of cell–cell communication related to vasomotor responses and the control of platelet function in the vascular system. However, little is known about the involvement of this signaling as well as the
Jucimara Baldissarelli +11 more
doaj +1 more source