Results 51 to 60 of about 10,406 (171)
Enhanced diffusion of molecular motors in the presence of adenosine triphosphate and external force [PDF]
The diffusion of a molecular motor in the presence of a constant external force is considered on the basis of a simple theoretical model. The motor is represented by a Brownian particle moving in a series of parabolic potentials placed periodically on a line, and the potential is switched stochastically from one parabola to another by a chemical ...
arxiv +1 more source
Sodium nitrite (NaNO2) is an inorganic salt used broadly in chemical industry. NaNO2 is highly reactive with hemoglobin causing hypoxia. Mesenchymal stem cells (MSCs) are capable of differentiating into a variety of tissue specific cells and MSC therapy ...
Elham H.A. Ali+2 more
doaj +1 more source
ATP Hysteresis in Tripartite Synapses [PDF]
Recent experimental studies strongly suggest the influence of glial purinergic transmission in the modulation of synaptic dynamics. By releasing adenosine triphosphate (ATP), which accumulates as adenosine, astrocytes tonically suppressed synaptic transmission. The delayed multi-step feedback of the glial adenosine with the neuron suggest the existence
arxiv
Targeting cytochrome C oxidase in mitochondria with Pt(II)-porphyrins for Photodynamic Therapy [PDF]
Mitochondria are the power house of living cells, where the synthesis of the chemical "energy currency" adenosine triphosphate (ATP) occurs. Oxidative phosphorylation by a series of membrane protein complexes I to IV, that is, the electron transport chain, is the source of the electrochemical potential difference or proton motive force (PMF) of protons
arxiv +1 more source
<em>Bacillus anthracis</em> Edema Factor Substrate Specificity: Evidence for New Modes of Action
Since the isolation of <em>Bacillus anthracis</em> exotoxins in the 1960s, the detrimental activity of edema factor (EF) was considered as adenylyl cyclase activity only.
Roland Seifert+2 more
doaj +1 more source
Kinetic Analysis of Protein Assembly on the Basis of the Center Manifold around the Critical Point [PDF]
Protein assembly plays an important role in the regulation of biological systems. The cytoskeleton assembly activity is provided by the binding cofactors GTP (guanidine triphosphate) or ATP(adenosine triphosphate) to monomeric protein, and is initiated by assembling the monomeric proteins.
arxiv
Coulomb Interaction as the Source of Muscle Force [PDF]
Myosin motor is the machine, which performs mechanical work in the course of adenosine triphosphate molecule hydrolysis and myosin head conformations accompanying this process. For displacement of individual fragments of large molecule relative to each other to arise and work to be performed, force must be born inside protein.
arxiv
Adenosine Triphosphate Pools in Methanobacterium [PDF]
Certain aspects of adenosine triphosphate (ATP) metabolism in the strict anaerobe Methanobacterium strain M.o.H. have been investigated. Results of growth yield studies suggest that ATP conservation is very inefficient (0.06 mole of ATP per mole of hydrogen) under the conditions used to grow the bacterium in a ...
Ralph S. Wolfe, A. M. Roberton
openaire +2 more sources
Abstract The observed standard free energy change (ΔG0obs) for the hydrolysis of the terminal pyrophosphate bond of ATP has been experimentally determined under physiological conditions using an entirely new set of reactions. The observed equilibrium constant (Kobs) for the combined reactions of acetate kinase (EC 2.7.2.1) and phosphate ...
Robert W. Guynn, Richard L. Veech
openaire +3 more sources
Mitochondrial transplantation strategies as potential therapeutics for central nervous system trauma
Mitochondria are essential cellular organelles critical for generating adenosine triphosphate for cellular homeostasis, as well as various mechanisms that can lead to both necrosis and apoptosis. The field of “mitochondrial medicine” is emerging in which
Jenna L Gollihue+2 more
doaj +1 more source