stravidin

例句：

1. 1. The researchers found that stravidin could be used as a potential drug target.
   研究人员发现，亲和素可以作为潜在的药物靶点。
2. 2. The scientist discovered the stravidin gene in the genome of a bacterium.
   科学家在细菌的基因组中发现了亲和素基因。
3. 3. The stravidin-based system has shown great promise in the field of biotechnology.
   基于亲和素的系统在生物技术领域显示出巨大潜力。