Demonstration of ricin-binding sites on the outer face of azurophil and specific granules of rabbit polymorphonuclear leukocytes.

Abstract

The presence of carbohydrate residues on the outer surface of PMN granules has been demonstrated by the use of ricin-conjugated ferritin. The binding of the lectin was inhibited by alpha-lactose. No difference in the binding densities of azurophil or specific granules was observed.