penicilloyl polylysine

例句：

1. 1. This protein is a key component of the immune system.
   这种蛋白质是免疫系统的关键组成部分。
2. 2.The study found that penicilloyl polylysine could enhance the effectiveness of antibiotics.
   研究发现，聚赖氨酸可以增强抗生素的有效性。
3. 3. Polylysine is also used in the production of artificial silk and other biomaterials.
   聚赖氨酸还用于生产人造丝和其他生物材料。