A phospholipase A2 hydrolyzing arachidonoyl-phospholipids in mouse peritoneal macrophages.


A calcium-dependent phospholipase A2 with half-maximal activity at approx. 0.7 microM free Ca2+ has been identified in the cytosolic fraction from macrophages. The enzyme eluted as a 70 kDa protein upon gel chromatography and showed increased activity after 10 min pretreatment of the cells with 10 nM phorbol myristate acetate. No significant activity could… (More)


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