Browsing by Author "ab2957c6-f95b-4bf9-86a0-c55a8ff2d134"

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    • Apyrase activity and changes in metabolites during germination and tuberization of Solanum tuberosum 
      Anich, Mario; Fanta, Nora; Mancilla, Marta; Kettlun, Ana María; Valenzuela, María Antonieta; Traverso Cori, A. (1990)
      Levels of adenine nucleotides, inorganic phosphate, starch and apyrase were measured during the growth of Solanum tuberosum tuber. The data obtained from potatoes sown in summer were compared with the data already reported ...
    • Identification and subcellular localization of two isoenzymes of apyrase from Solanum tuberosum 
      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 ...
    • Identification of an apyrase activating protein and of calmodulin in Solanum tuberosum 
      Mancilla, Marta; Valenzuela, Marta; Anich, Mario; Kettlun, Ana María; Jara, Otilia; Traverso Cori, A. (1987)
      Three types of effector proteins have been isolated from a partially purified protein preparation of potato tuber. One of the proteins is a typical calmodulin which has no effect on apyrase. The two other proteins modulate ...
    • Partial purification and immunohistochemical localization of ATP diphosphohydrolase from Schistosoma mansoni: ... 
      Vasconcelos, Eveline G.; Ferreira, Sérgio T.; De Carvalho, Técia M U; De Souza, Wanderley; Kettlun, Ana M.; Mancilla, Marta; Valenzuela, M. Antonieta; Verjovski-Almeida, Sergio (1996)
      ATP diphosphohydrolase from tegumental membranes of Schistosoma mansoni was solubilized with Triton X-100 plus deoxycholate and separated by preparative nondenaturing polyacrylamide gel electrophoresis. Two isoforms with ...
    • Properties of two apyrases from Solanum tuberosum 
      Kettlun, Ana M.; Uribe, Luz; Calvo, Luz; Silva, Luz; Rivera, Luz; Mancilla, Marta; Antonieta, Marta; Valenzuela, Marta; Traverso Cori, A. (1982)
      Two homogeneous isoenzymes of apyrase from Pimpernel and Desirée varieties of Solanum tuberosum were obtained by affinity chromatography on agarose-Cibacron Blue or agarose-ATP-phosphonate columns. Both enzymes split POP ...
    • Purification and characterization of two isoapyrases from Solanum tuberosum var. ultimus 
      Kettlun, Ana María; Urra, Raúl; Leyton, Mario; Valenzuela, M.Antonieta; Mancilla, Marta; Traverso Cori, A. (1992)
      Two isoenzymes of ATP-diphosphohydrolase (apyrase) were extracted and purified from S. tuberosum var. Ultimus. Their hydrolytic activity ratios (ATPase/ADPase) were 1.0 (apyrase B) and ca 15.0 (apyrase A). They were ...
    • The effect of bivalent metal ions on ATPase-ADPase activities of apyrase from Solanum tuberosum 
      Valenzuela, María Antonieta; Kettlun, Ana; Mancilla, Marta; Calvo, Victor; Fanta, Nora; Traverso Cori, A. (1988)
      The purpose of this study was the elucidation of the possible importance of bivalent metal ions in controlling the activity of apyrase (ATP: diphosphohydrolase EC 3.6.1.5) purified from tubers of Solanum tuberosum cv ...