Localization of dipeptidyl aminopeptidase yscIV in the plasma membrane of Saccharomyces cerevisiae.
The subcellular distribution of dipeptidyl aminopeptidase activity was studied in protoplast lysates of Saccharomyces cerevisiae that were virtually free from vacuolar contamination. Dipeptidyl aminopeptidase yscIV, the STE13 gene product, was found to be associated with plasma membrane vesicles after sucrose gradient isopycnic centrifugation. Another dipeptidyl aminopeptidase activity, not yet fully characterized, was localized in a microvesicular population co-sedimenting with chitosomes.
Departamento de Biología Funcional, Facultad de Medicina, Universidad de Oviedo, Spain.
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Suárez Rendueles
D002462:Cell Membrane / Q000201:enzymology; D002499:Centrifugation, Density Gradient; D004152:Dipeptidyl-Peptidases and Tripeptidyl-Peptidases / Q000032:analysis*; D006358:Hot Temperature; D011523:Protoplasts / Q000201:enzymology; D012441:Saccharomyces cerevisiae / Q000201:enzymology*; D029701:Saccharomyces cerevisiae Proteins
D029701:Saccharomyces cerevisiae Proteins; D004152:Dipeptidyl-Peptidases and Tripeptidyl-Peptidases; C061833:STE13 protein, S cerevisiae