electrostatic potential calculations has been proposed to assist the immobilization process of a CChydrolaseMfphA onto mesoporous SBA‐15. The size of the enzyme, pH‐dependence of the immobilization process, and possible orientation of MfphA onto mesoporous materials (MPs) were predicted by molecular simulation. The adsorption of MfphA onto SBA‐15 reached equilibrium in 1.5 hours at pH 7.0 and the maximum
根据同源建模和静电势计算分子模拟战略已经提出,以协助C的固定化过程 Ç水解MfphA到介孔SBA-15。通过分子模拟预测了酶的大小,固定过程的pH依赖性以及MfphA在中孔材料(MPs)上的可能取向。在pH值为7.0的1.5小时内,MfphA在SBA-15上的吸附达到平衡,最大负载量为34 mg g -1。同时在pH 9.0下,在12小时后未观察到明显的吸附,这与分子模拟预测相符。还表明,固定化后,固定化的MfphA的催化活性有所降低,但热稳定性显着提高。氯化胍(GdmCl)对固定化酶和游离酶均表现出相似的活性衰减。相比之下,固定化的MfphA在高浓度下对尿素的抵抗力要强于游离酶。同时,再循环实验表明,固定的酶在十个反应循环后保留了其初始活性的30%。