This review emphasizes some important aspects for the control of lipase enantioselectivity: medium engineering, substrate engineering, modification of enzyme and directed evolution.
反应介质工程、底物分子工程、酶分子修饰和定向进化。
It expects that the system can be used as a potential media forphotosensized electron reaction and a model for modification of enzyme reaction in the biochemistry using a polymer model.
在生化反应中，可模拟酶反应机理，因而有一定的理论意义和实际意义。
Chemical modification studies showed that the sulfhydryl, guanido, amino, carboxyl and indolyl groups may participate in the active center of the enzyme.
化学修饰实验发现：巯基、胍基、氨基、羧基和吲哚基可能参与酶活性中心的组成。
Modification of histidine residue did not change the activity of enzyme and its fluorescence emission peak intensity.
组氨酸残基被修饰后酶活力基本不变，酶的荧光强度也不改变。
Modification of histidine residue did not change the activity of the enzyme and its fluorescence emission peak intensity.
组氨酸残基被修饰后酶活力基本不变，酶的荧光强度也不改变。
The surface modification of polymeric materials by plasma technique were discussed. The recent advances in the preparation of immobilized enzyme carriers by plasma technique were reviewed.
本文阐述了等离子体的发生及其引起材料表面改性的主要特点。就近年来，国内外运用等离子体技术制备固定化酶载体的方法及应用情况作了综述。
Modification of the substrate by an enzyme can then be monitored electrochemically by means of the redox-active group.
随后可以通过氧化还原活性基团电化学监测酶对底物的修饰。
As an artificial enzyme, it can be optimized by changing the diphenylmethane units or bridging chains or by chemical modification of hydrophobic cavities to form new host compounds.
作为人工模拟酶，通过改变氮杂环蕃化合物的形状以及引入活性基团，形成不同包结性能的主体化合物。
Amino acid analysis showed that the inactivation of the enzyme was due to the modification of the arginyl residue by butanedione( Table3).
氨基酸分析表明，酶的失活是因为丁二酮修饰了精氨酸残基。
Recent progress of carrier materials used for immobilized enzyme by plasma optimization and modification technology;
以等离子体处理的载体材料固定化酶，开拓了固定化酶技术的新领域。
Recent progress of carrier materials used for immobilized enzyme by plasma optimization and modification technology;
以等离子体处理的载体材料固定化酶，开拓了固定化酶技术的新领域。
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