目 Mechanism of Action曹 Examples: Staphylococci a-toxin(homogeneous pore former) Receptors exist--cells show 100-fold range in sensitivity Consequences of action: aggregation of platelets and narrowing of blood vessels leads to necrosis BIOL 533 20 Lecture 9BIOL 533 20 Lecture 9 Mechanism of Action – Examples: • Staphylococci -toxin (homogeneous pore former) – Receptors exist—cells show 100-fold range in sensitivity – Consequences of action: aggregation of platelets and narrowing of blood vessels leads to necrosis