signal peptide的用法和樣例：
例句
- Once across the membrane, the signal peptide is cleaved by the signal peptidase and the process protein is released.
信號肽是疏水的，與膜上結合的蛋白接近，拉著后面的親水多肽跨膜，一旦跨過膜，即被信號肽酶切除，釋放出加工的蛋白。 - Signal peptides' structures and functions, signal sequence traps and the proteins expressions in prokaryote and eukaryote expression systems were illustrated in the article.
就信號肽的結構和功能，信號肽的捕獲方法及其在原核表達系統和真核表達系統中表達外源蛋白質的應用做一些介紹。
