title: Amino acid uptake by Saccharomyces cerevisiae plasma membrane vesicles.
abstract: A procedure is described which allows for the efficient separation of Saccharomyces cerevisiae plasma membranes from other cellular membranes by discontinuous sucrose density gradient centrifugation. After vesiculization in an osmotic stabilization buffer the plasma membrane vesicles retain the ability to transport amino acids. Amino acid uptake was affected by the proton gradient dissipator m-chlorocarbonylcyanide phenylhydrazone and was dependent, in some cases, on the presence of sodium ion.
mesh_terms: D000596:Amino Acids / Q000378:metabolism*; D001692:Biological Transport / Q000187:drug effects; D002258:Carbonyl Cyanide m-Chlorophenyl Hydrazone / Q000494:pharmacology; D002462:Cell Membrane / Q000378:metabolism*; D005998:Glycine / Q000378:metabolism; D007930:Leucine / Q000378:metabolism; D009994:Osmolar Concentration; D011392:Proline / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000378:metabolism* / Q000648:ultrastructure; D012964:Sodium / Q000494:pharmacology
chemical_list: D000596:Amino Acids; D002258:Carbonyl Cyanide m-Chlorophenyl Hydrazone; D011392:Proline; D012964:Sodium; D007930:Leucine; D005998:Glycine