Decay-accelerating factor (DAF) is one ofthe most important complement regulatory proteins on membrane, whichaccelerates the decay of the classical and alternative C3/C5 convertases byinhibiting the assembly of C3/C5 convertases.

• 衰变加速因子是一种重要的膜上补体调控蛋白，它作用于补体激活前端反应的C3/C5转化酶，通过抑制其组装而加速其衰变。