Serine displays a remarkable activation on K isozyme and can also reverse theactivity of type K inhibited by amino acids, but the activating effects of serine and FDPare not additive.

• 丝氨酸可显著激活K 型PyK,也可逆转氨基酸对K 型PyK 的抑制作用,其逆转效率仍因氪基酸而异,但其激活作用与FDP 不能相加。