Results 251 to 260 of about 4,303,904 (295)
Some of the next articles are maybe not open access.
On criteria for active transport
Journal of Theoretical Biology, 1967Abstract Transcellular movement across epithelial membranes involves the generation of a force by some process occurring within the membrane structure itself. It is widely believed that this mechanism consists of a primary transport of sodium ion or sodium chloride. Some of the evidence on which this belief is based is reviewed. Using the model of a
openaire +2 more sources
Science, 2017
Plant Science Volatile organic compounds (VOCs) serve as invisible lines of communication among host plants, pathogens, commensals, community groups, and, with flowers, their pollinators. Studying petunia flowers, Adebesin et al. show that VOCs do not passively diffuse out of the cells but are actively shuttled across the plasma membrane by an ABC (ATP-
openaire +2 more sources
Plant Science Volatile organic compounds (VOCs) serve as invisible lines of communication among host plants, pathogens, commensals, community groups, and, with flowers, their pollinators. Studying petunia flowers, Adebesin et al. show that VOCs do not passively diffuse out of the cells but are actively shuttled across the plasma membrane by an ABC (ATP-
openaire +2 more sources
On the criteria of active transport
Journal of Theoretical Biology, 1965Abstract The phenomenological aspects of inclusion of effects of chemical reactions on diffusion currents are discussed. Formal statistical expressions for systems with chemical reactions inside an anisotropic membrane consistent with hydrodynamic equations are derived.
openaire +2 more sources
Active Transport in Phototrophic Bacteria
Photosynthesis Research, 1986Phototrophic bacteria utilize light-driven, cyclic electron flow to pump protons out of their cytoplasm, creating an electrochemical proton gradient, ΔμH+, outside acid and positive. These bacteria exchange external protons for internal cations (Na(+), K(+) and Ca(+2)), allowing the cells to maintain a nearly constant internal pH while maintaining the ...
openaire +2 more sources
A Human Serotonin Transporter Mutation Causes Constitutive Activation of Transport Activity
Molecular Pharmacology, 2003A rarely occurring variant of human serotonin transporter (hSERT) was tested for its functional consequences in HeLa and COS-7 cells. The variant, in which Ile-425 is converted to Val, was significantly different from wild type with respect to its catalytic properties.
Fusun, Kilic +2 more
openaire +2 more sources
Nucleoside transport in activated macrophages
Biochemical and Biophysical Research Communications, 1989The study of [3H]-uridine uptake by mouse peritoneal macrophages showed that this is an active, temperature- and protein synthesis-dependent phenomenon, which is early altered when are exposed to a variety of stimuli. Murine recombinant interferon-gamma, a stimulus able to activate macrophage and to induce the production of tumor necrosis factor-alpha,
F. Busolo +5 more
openaire +3 more sources
Choline activation of lithium transport
Experientia, 1973Nachweis einer Erhohung des Li-Austausches in Rinder-Erythrozyten bei Anwesenheit von Cholinchlorid im Extrazellularraum.
W R, Carper, D D, Stoddard, D F, Martin
openaire +2 more sources
Biochemical and Biophysical Research Communications, 1962
Hasselbach, W., Makinose, M.
openaire +3 more sources
Hasselbach, W., Makinose, M.
openaire +3 more sources