Browsing by Author "Valenzuela, María Antonieta"
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Kettlun, Ana María; Leyton, Mario; Valenzuela, María Antonieta; Mancilla, Marta; Traverso Cori, A. (1992)Two forms of ATP-diphosphohydrolase were identified in Solanum tuberosum tuber var. Ultimus. Their hydrolytic activity ratios (ATPase/ADPase) were over 10 for form A and 1 for form B. In the potato tuber homogenate the ...
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Potato tuber isoapyrases: Substrate specificity, affinity labeling, and proteolytic susceptibility Kettlun, Ana María; Espinosa, V.; García Nannig, Lorena; Valenzuela, María Antonieta (PERGAMON-ELSEVIER SCIENCE LTD, 2005-05)Apyrase/ATP-diphosphohydrolase hydrolyzes di- and triphosphorylated nucleosides in the presence of a bivalent ion with sequential release of orthophosphate. We performed studies of substrate specificity on homogeneous ...