Possible outcome of this interaction between subunits Cooperative effecti协同效应： the binding of substrate to one active site of the enzyme facilitates substrate binding to the other active sites. Substrate concentration,[S]- 存在别构分子： Allosteric molecule:regulatory molecules are reversibly bound to specific sites other than the catalytic sites. 别构分子：可逆结合到酶特定部位（非活性部位），起到 调节酶催化功能的作用。 酶活性可以迅速改变，因此在代谢途径中起到关键调节作 用（第10章介绍）Cooperative effect协同效应： the binding of substrate to one active site of the enzyme facilitates substrate binding to the other active sites. Possible outcome of this interaction between subunits 存在别构分子： Allosteric molecule: regulatory molecules are reversibly bound to specific sites other than the catalytic sites. 别构分子：可逆结合到酶特定部位（非活性部位），起到 调节酶催化功能的作用。 酶活性可以迅速改变，因此在代谢途径中起到关键调节作 用（第10章介绍）