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. 1985 Oct 1;231(1):179-83.
doi: 10.1042/bj2310179.

Ca2+-induced polyphosphoinositide breakdown due to phosphomonoesterase activity in chicken erythrocytes

P J Raval, D Allan

Ca2+-induced polyphosphoinositide breakdown due to phosphomonoesterase activity in chicken erythrocytes

P J Raval et al. Biochem J. .

Abstract

Treatment of chicken erythrocytes with ionophore A23187 and Ca2+ caused the breakdown of a large proportion of the cellular polyphosphoinositides. Since no diacylglycerol or phosphatidate was generated, but there was a small increase in the level of phosphatidylinositol, it was concluded that breakdown occurred as a result of phosphomonoesterase activation. Experiments with subcellular fractions showed that the phosphomonoesterase activity was present in the cytosolic fraction of the cells.

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