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Maintenance of energy-linked functions in rat liver mitochondria
Biochimica Et Biophysica Acta
|July 17, 1990
Abstract:
EGTA and EDTA are compared with respect to their ability to preserve ATP-requiring reactions in rat liver mitochondria. The presence of EGTA sustains the high ATP requirement of citrulline synthesis. EDTA does not, even with excess Mg2+. Carboxylation of pyruvate, which has a lower ATP demand, is not influenced by the type of chelating agent. In mitochondria stored for 24 h at 4 degrees C, EGTA is more effective than EDTA in preventing loss of these energy-linked functions.