Water transport across yeast vacuolar and plasma membrane-targeted secretory vesicles occurs by passive diffusion. 1999

L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
Laboratory of Epithelial Cell Biology, Renal Electrolyte Division, Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15213-2500, USA.

To determine whether solute transport across yeast membranes was facilitated, we measured the water and solute permeations of vacuole-derived and late secretory vesicles in Saccharomyces cerevisiae; all permeations were consistent with passive diffusive flow. We also overexpressed Fps1p, the putative glycerol facilitator in S. cerevisiae, in secretory vesicles but observed no effect on water, glycerol, formamide, or urea permeations. However, spheroplasts prepared from the strain overexpressing Fps1p showed enhanced glycerol uptake, suggesting that Fps1p becomes active only upon insertion in the plasma membrane.

UI MeSH Term Description Entries
D002352 Carrier Proteins Proteins that bind or transport specific substances in the blood, within the cell, or across cell membranes. Binding Proteins,Carrier Protein,Transport Protein,Transport Proteins,Binding Protein,Protein, Carrier,Proteins, Carrier
D002462 Cell Membrane The lipid- and protein-containing, selectively permeable membrane that surrounds the cytoplasm in prokaryotic and eukaryotic cells. Plasma Membrane,Cytoplasmic Membrane,Cell Membranes,Cytoplasmic Membranes,Membrane, Cell,Membrane, Cytoplasmic,Membrane, Plasma,Membranes, Cell,Membranes, Cytoplasmic,Membranes, Plasma,Plasma Membranes
D004058 Diffusion The tendency of a gas or solute to pass from a point of higher pressure or concentration to a point of lower pressure or concentration and to distribute itself throughout the available space. Diffusion, especially FACILITATED DIFFUSION, is a major mechanism of BIOLOGICAL TRANSPORT. Diffusions
D005656 Fungal Proteins Proteins found in any species of fungus. Fungal Gene Products,Fungal Gene Proteins,Fungal Peptides,Gene Products, Fungal,Yeast Proteins,Gene Proteins, Fungal,Peptides, Fungal,Proteins, Fungal
D005990 Glycerol A trihydroxy sugar alcohol that is an intermediate in carbohydrate and lipid metabolism. It is used as a solvent, emollient, pharmaceutical agent, or sweetening agent. 1,2,3-Propanetriol,Glycerin,1,2,3-Trihydroxypropane,Glycerine
D001692 Biological Transport The movement of materials (including biochemical substances and drugs) through a biological system at the cellular level. The transport can be across cell membranes and epithelial layers. It also can occur within intracellular compartments and extracellular compartments. Transport, Biological,Biologic Transport,Transport, Biologic
D012441 Saccharomyces cerevisiae A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement. Baker's Yeast,Brewer's Yeast,Candida robusta,S. cerevisiae,Saccharomyces capensis,Saccharomyces italicus,Saccharomyces oviformis,Saccharomyces uvarum var. melibiosus,Yeast, Baker's,Yeast, Brewer's,Baker Yeast,S cerevisiae,Baker's Yeasts,Yeast, Baker
D014617 Vacuoles Any spaces or cavities within a cell. They may function in digestion, storage, secretion, or excretion. Vacuole
D014867 Water A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Hydrogen Oxide
D020346 Aquaporins A class of porins that allow the passage of WATER and other small molecules across CELL MEMBRANES. Aquaporin,Water Channel,Water Channel Protein,Water Channel Proteins,Water Channels,Channel Protein, Water,Channel Proteins, Water,Channel, Water,Channels, Water,Protein, Water Channel,Proteins, Water Channel

Related Publications

L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
August 1992, Biochimica et biophysica acta,
L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
December 1975, Journal of bacteriology,
L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
March 1988, The Journal of cell biology,
L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
May 1976, Biochimica et biophysica acta,
L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
January 2020, Frontiers in cell and developmental biology,
L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
May 1987, Biochimica et biophysica acta,
L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
January 2021, The New phytologist,
L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
January 2018, Biological & pharmaceutical bulletin,
L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
February 1999, The Journal of biological chemistry,
L A Coury, and M Hiller, and J C Mathai, and E W Jones, and M L Zeidel, and J L Brodsky
October 2000, Science (New York, N.Y.),
Copied contents to your clipboard!