Experimental approaches to determine the dependence of volume, pH and membrane potential on external potassium
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Are there one or several stationary states for physiological parameters dependent on external KCl? For which range of external potassium the cell is able to maintain a constant pH, potassium content, membrane potential and volume?
SEEK ID: https://fairdomhub.org/studies/34
K+ Starvation in Saccharomyces cerevisiae
Projects: TRANSLUCENT
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Created: 3rd Jun 2010 at 09:46
Last updated: 22nd Nov 2011 at 19:12
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Projects: TRANSLUCENT
Institutions: Humboldt-Universität zu Berlin
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Gene interaction networks and models of cation homeostasis in Saccharomyces cerevisiae
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Experimental approaches to evaluate cellular response to Potassium limitation. For this purpose, a series of isogenic strains derived from BY4741 and lacking one (TRK1 or TRK2) or both TRK genes encoding specific potassium uptake systems was constructed using the homologous recombination and Cre-lox system.
Submitter: Simon Borger
Studies: Analysis of proton and potassium fluxes, Experimental approaches to determine the dependence of volume, pH and me..., Ion Flux Changes, Key Cell-Physiological Parameters, Long Term Metabolomic Profile, Proteomic Studies, Pysiological Model, Transcriptional Profile
Assays: 2D-Gel Electrophoresis, Ammonium fluxes, External Potassium Concentration, External pH changes, HPLC-MS, How does internal potassium change (/decrease) during several hours of p..., How starvation affect protein content in yeast cells, LacZ Reporters, Membrane Potential, NMR, Potassium fluxes, Protein Concentration, Protein Identification - MS, Proton fluxes, RT-PCR, Stable membrane potential, Stable pH, Stable potassium concentration, Stable volume, Time Course Micro Array Experiment, Time courses of the internal pH changes, Volume determination during starvation at different times.
The potassium content of cells grown overnight in a certain amount (0.1, 0.2, 0.5, 1, 5, 20, 50, 200 mM) of KCl will be determined. Additionally the potassium content of cells grown overnight in high potassium and shifted to the amounts of potassium used in the former experiment. After growing overnight again in the lower potassium, the cells should contain finally a comparable potassium concentration than the cells grown in the respecting KCl in the first experiment.
Submitter: Falko Krause
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: K+ Starvation in Saccharomyces cerevisiae
The pH of cells grown overnight in a certain concentration of KCl will be determined, to reveal a functional relationship between external KCl and a stable pH. See also "2D-Gel Electrophoresis" Assay for further details.
Submitter: Falko Krause
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: K+ Starvation in Saccharomyces cerevisiae
The membrane potential of cells grown overnight in a certain concentration of KCl will be determined, to reveal a relation between external KCl and a possibly stable membrane potential. See also "2D-Gel Electrophoresis " Assay for further details.
Submitter: Falko Krause
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: K+ Starvation in Saccharomyces cerevisiae
The volume of cells grown overnight in a certain concentration of KCl will be determined, to reveal a relation between the osmotic effects of external KCl and the cell volume. See also 1.4.1. for further details.
Submitter: Falko Krause
Assay type: Experimental Assay Type
Technology type: Technology Type
Investigation: K+ Starvation in Saccharomyces cerevisiae
