pentacid base

例句：

1. 1. The researcher found that the pentapeptide could be used as a drug candidate.
   研究者发现这个五肽可以作为药物候选分子。
2. 2.The pentapeptide base is crucial for the formation of the protein structure.
   五肽基团对于蛋白质结构的形成至关重要。
3. 3. The pentapeptide base is responsible for the binding of the hormone to its receptor.
   五肽基团负责激素与其受体的结合。