In situ measurement of cAMP related enzymes in the dimorphic fungus Mucor rouxii

Yeast cells of the dimorphic fungus Mucor rouxii have been permeabilized by treatment with toluene:ethanol. The permeabilization allowed the in situ measurement of pyruvate kinase, cAMP phosphodiesterase and adenylate cyclase activities. Using a small peptide as substrate, cAMP dependent protein kin...

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Autores principales: Maggese, M.C., Galvagno, M.A., Cantore, M.L., Passeron, S.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03091651_v6_n12_p1101_Maggese
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Sumario:Yeast cells of the dimorphic fungus Mucor rouxii have been permeabilized by treatment with toluene:ethanol. The permeabilization allowed the in situ measurement of pyruvate kinase, cAMP phosphodiesterase and adenylate cyclase activities. Using a small peptide as substrate, cAMP dependent protein kinase activity could also be measured. Permeabilized cells showed higher cAMP phosphodiesterase and adenylate cyclase activities than cellular homogenates. The main catalytic properties of the enzymes were similar to that previously found in in vitro studies. © 1982.