Mast cells contain spleen-type prostaglandin D synthetase.

Abstract

Prostaglandin D synthetase activity in the cytosol (100,000 x g, 1-h supernatant) fraction of peritoneal mast cells of adult rats (105.0 nmol/min/mg protein) was the highest among such activities in various rat tissues and cells. As judged by the absolute requirement for glutathione for the reaction (Km = 300 microM), the Km value for prostaglandin H2 (200… (More)

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