期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 38, 页码 16764-16769出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202007827
关键词
boosted activity; disintegrants; enzyme immobilization; enzyme preparation; metal-organic frameworks
资金
- National Key Research and Development Program of China [2018YFA0901800]
- Tianjin Synthetic Biotechnology Innovation Capacity Improvement Project [TSBICIP-KJGG003]
- National Natural Science Foundation of China [21871153, 31800793]
- Tianjin Natural Science Foundation of China [18JCZDJC37300]
An enzyme formulation using customized enzyme activators (metal ions) to directly construct metal-organic frameworks (MOFs) as enzyme protective carriers is presented. These MOF carriers can also serve as the disintegrating agents to simultaneously release enzymes and their activators during biocatalysis with boosted activities. This highly efficient enzyme preparation combines enzyme immobilization (enhanced stability, easy operation) and homogeneous biocatalysis (fast diffusion, high activity). The MOF serves as an ion pump that continuously provides metal ion activators that greatly promote the enzymatic activities (up to 251 %). This MOF-enzyme composite demonstrated an excellent protective effect against various perturbation environments. A mechanistic investigation revealed that the spontaneous activator/enzyme release and ion pumping enable enzymes to sufficiently interact with their activators owing to the proximity effects, leading to a boost in biocatalytic performance.
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