英语语法分析

Please investigate the surface adhesins of Bacteroides forsythus which interact with human salivary proline-rich proteins.

请研究连翘拟杆菌的表面粘附素，该粘附素与人唾液富含脯氨酸的蛋白质相互作用。

It also contains high concentrations of proline and hydroxyproline.

它还含有高浓度的脯氨酸和羟脯氨酸。

Histidine and proline are necessary amino acids for man and animal.

组氨酸和脯氨酸是人体和动物必需的氨基酸。