ptyalinogen

例句：

1. 1. The protein in this food is very important for our health.
   这种食物中的蛋白质对我们的健康非常重要。
2. 2. Protein is essential for the growth and repair of cells.
   蛋白质对于细胞的生长和修复至关重要。
3. 3.The researcher analyzed the protein sequence to identify potential drug targets.
   研究人员分析了蛋白质序列以识别潜在的药物靶点。