Analysis of Ion Concentration Changes and Fluxes

Membrane Physiology and Bioenergetics

Institute of Microbiology, Center of Nanobiology and Structural Biology, ASCR

Jost Ludwig

Profile:

The department of Membrane Physiology and Bioenergetics at the Center of Nanobiology and Structural Biology conducts research in the field of (cat-)ion transport and it’s energetics The group uses baker’s yeast (Saccharomyces cerevisiae) as a model organisms. One of the main aims is to understand the structure/function relationship of K+ translocation systems (Trk). Molecular biology, biochemical, physiological and biophysical methods are employed.

Selected Publications:

  • Zayats, V., Stockner, T., Pandey, S.K., Wörz, K., Ettrich, R., Ludwig, J. (2015): A refined atomic scale model of the Saccharomyces cerevisiae K+-translocation protein Trk1p combined with experimental evidence confirms the role of selectivity filter glycines and other key residues. BBA Biomembranes 1846: 1183-1195.
  • Ariño, J., Aydar, E., Drulhe, S., Ganser, D., Jorrín, J., Kahm, M., Krause, F., Petrezsélyová, S., Yenush, L., Zimmermannová, O., van Heusden, G.P., Kschischo, M., Ludwig, J., Palmer, C., Ramos, J., Sychrová, H. (2014): Systems biology of monovalent cation homeostasis in yeast: the translucent contribution. Adv Microb Physiol. 64: 1-63.
  • Plášek, J., Gášková, D., Ludwig, J., Höfer, M. (2013): Early changes in membrane potential of Saccharomyces cerevisiae induced by varying extracellular K+, Na+ or H+ J. Bioenerg. Biomembr. 45: 561-568.

C4Sys Open Access Infrastructure:

  • FLISE (Flux measurements of cells in suspension using ion selective electrodes) (Biophysical instrument and method)
  • MIFE (Microelectrode flux estimation) (Biophysical instrument and method)
  • pHink (Time resolved measurement of intracellular pH using the GFP variant pHluorin as sensor)(Biophysical method)

Protein Science Instruments

Biophysical Instruments/methods

  • FLISE
  • MIFE
  • Microplate readers including fluorescence and luminescence analysis

Molecular Biology Instruments

  • all standard equipment

Cell Biology Instruments

CATEGORIES:

  • Bioinformatics Software
  • Bioinformatics Databases
  • Protein Science Instruments
  • Biophysical Instruments / Methods
  • Molecular Biology Instruments
  • Cell Biology Instruments
  • … add more categories as needed