The result showed that the reaction rate of D-BH hydrolysis was higher than that of N -carbamyl phenylalanine hydrolysis,the latter was the limiting step of the whole process.

• 结果表明:对于这一级联酶转化反应；D海因酶的水解反应是快速反应；而N氨甲酰氨基酸脱氨甲酰的反应速率极小；是该过程的控制步骤.