Complement proteins C5b-9 cause release of membrane vesicles from the platelet surface that are enriched in the membrane receptor for coagulation factor Va and express prothrombinase activity

We have investigated the composition and function of membrane microparticles released from platelets exposed to the C5b-9 proteins of the complement system. Gel-filtered human platelets were incubated with sub-lytic amounts of the purified C5b-9 proteins and the distribution of surface antigens was...

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