Results 11 to 20 of about 78,588 (247)

Characterization of humic fractions in leachates from soil under organic and conventional management and their interactions with the root zone [PDF]

open access: yes, 1978
Humic fractions were shown to be closely involved in gene expression and promotion of different PM H+-ATPase isoforms, as well as in lateral root development, indicating an enhanced nutrient absorption capacity of the plant root system.
Vujinovic, T.   +6 more
core   +3 more sources

Cryo-EM structure of a helicase loading intermediate containing ORC-Cdc6-Cdt1-MCM2-7 bound to DNA [PDF]

open access: yes, 2013
In eukaryotes, the Cdt1-bound replicative helicase core MCM2-7 is loaded onto DNA by the ORC-Cdc6 ATPase to form a prereplicative complex (pre-RC) with an MCM2-7 double hexamer encircling DNA.
A Costa   +68 more
core   +1 more source

Effect of osmotic shrinkage and hormones on the expression of Na+/H+ exchanger-1,Na+/K+/2Cl– cotransporter and Na+/K+-ATPase in gill pavement cells of freshwater adapted Japanese eel,Anguilla japonica [PDF]

open access: yesJournal of Experimental Biology, 2007
SUMMARYIt is well-known that gill epithelial cells are important in fish osmoregulation. However, studies on the effect of osmotic stress on the direct cellular responses of the gill epithelial cells are limited. In this paper, we aimed to determine the effects of osmotic hypertonicity, hormones and cellular signaling molecules on the expression of ion
William K F, Tse   +2 more
openaire   +2 more sources

Altered Regulation of type 3 Na+/H+ exchanger, type 1 Na+/HCO3 - cotransporter, and Na+,K+-ATPase in the Kidney of Rats with Experimental Rhabdomyolysis [PDF]

open access: yesElectrolyte & Blood Pressure, 2007
Metabolic acidosis was shown to correlate with deterioration of renal function in patients with rhabdomyolysis. The present study was aimed to investigate whether the changes of type 3 Na(+)/H(+) exchanger (NHE3), type 1 Na(+)/HCO3 (-) cotransporter (NBC1), and Na(+),K(+)-ATPase α1 subunit may play a role in the pathogenesis of metabolic acidosis in ...
Ma, Seong Kwon   +6 more
openaire   +2 more sources

Cell cycle-dependent and kinase-specific regulation of the apical Na/H exchanger and the Na,K-ATPase in the kidney cell line LLC-PK1 by calcitonin. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1994
Calcitonin (CT), which regulates serum calcium through its actions in bone and the kidney tubule, also has a potent natriuretic effect in vivo. Na reabsorption in the proximal kidney tubule is mostly dependent on the activity of the Na,K-ATPase and the apical Na/H exchanger.
M, Chakraborty   +3 more
openaire   +2 more sources

Vasopressin, insulin and peroxide(s) of vanadate (pervanadate) influence Na+ transport mediated by (Na+, K+)ATPase or Na+/H+ exchanger of rat liver plasma membrane vesicles [PDF]

open access: yesEuropean Journal of Biochemistry, 1990
Uptake of 22Na+ by liver plasma membrane vesicles, reflecting Na+ transport by (Na+, K+)ATPase or Na+/ H+ exchange was studied. Membrane vesicles were isolated from rat liver homogenates or from freshly prepared rat hepatocytes incubated in the presence of [Arg8]vasopressin or pervanadate and insulin.
JAKUBOWSKI, Josef, Jakob, Andrea
openaire   +3 more sources

Ellagic acid modulates Na+, H+ exchanger activity, Na+, K+ ATPases, and Ca2+ ATPases membrane transporters in tert-butyl hydroperoxide-induced oxidative stress during aging in humans

open access: yes, 2023
Abstract Ellagic acid (EA), a dimer of gallic acid is mainly present in pomegranates and berries possessing health-promoting benefits via its antioxidant and anti-inflammatory properties. We have evaluated the in vitro activity of EA on Na+, H+ exchanger (NHE), Na+, K+ ATPases, and Ca2+ ATPases activity in the control and tert-butyl ...
Deepika .   +3 more
openaire   +1 more source

Effects of salinity challenge on the endocrine control of osmoregulation and calcium homeostasis in the sea bream [PDF]

open access: yes, 1999
The gilthead sea bream (Sparus auratu) is a marine species often found in coastal lagoons, experimenting episodic exposures to both brackish and hypersaline environments.
Canario, Adelino V. M.   +4 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Evaluation of four different strategies to characterize plasma membrane proteins from banana roots [PDF]

open access: yes, 2015
Plasma membrane proteins constitute a very important class of proteins. They are involved in the transmission of external signals to the interior of the cell and selective transport of water, nutrients and ions across the plasma membrane.
Carpentier, Sebastien C.   +3 more
core   +1 more source

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