Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/60397
Type: Artigo de periódico
Title: INTERACTIONS OF CALCIUM AND MAGNESIUM WITH THE MITOCHONDRIAL INORGANIC PYROPHOSPHATASE FROM SACCHAROMYCES-CEREVISIAE
Author: URIBE, S
RANGEL, P
PARDO, JP
PEREIRADASILVA, L
Abstract: The activity of the mitochondrial inorganic pyrophosphatase from Saccharomyces cerevisiae was measured in the presence of increasing concentrations of magnesium and calcium. Calcium pyrophosphate (dissociation constant K(d) = 1.9 muM) inhibited pyrophosphatase by competition with magnesium pyrophosphate (K(d) = 50 muM). The small movements of calcium detected in mitochondria from yeast may be physiologically significant for the control of inorganic pyrophosphatase activity and the concentration of pyrophosphate in the matrix of yeast mitochondria.
Editor: Springer Verlag
Rights: fechado
Identifier DOI: 10.1111/j.1432-1033.1993.tb18289.x
Date Issue: 1993
Appears in Collections:Unicamp - Artigos e Outros Documentos

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