FIG. 2.

Inhibition of alternative and classical pathway-mediated lysis of erythrocytes by kaposica and VCP. The relative effects of kaposica and VCP on the alternative pathway (AP)-mediated lysis of rabbit erythrocytes and the classical pathway (CP)-mediated lysis of antibody-coated sheep erythrocytes were examined as previously described (19). Bovine serum albumin (BSA) was included as a nonspecific control. IC₅₀, 50% inhibitory concentration.