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Updated: Dec 15, 2025

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability
Published on: April 22, 2016
Catalytically-active inclusion bodies for biotechnology-general concepts, optimization, and application.
Vera D Jäger1,2,3, Robin Lamm2,4, Kira Küsters5,6
1Institut für Molekulare Enzymtechnologie, Heinrich-Heine-Universität Düsseldorf, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.
Catalytically active inclusion bodies (CatIBs) are engineered protein aggregates with inherent enzymatic activity. This review explores their production, processing, and applications as novel bionanomaterials in biotechnology.
Area of Science:
- Biotechnology and Bionanomaterials
- Protein Engineering and Biocatalysis
Background:
- Bacterial inclusion bodies (IBs) were traditionally viewed as inactive protein aggregates.
- Recent advancements enable the production of catalytically active inclusion bodies (CatIBs) through protein engineering.
Purpose of the Study:
- To review the general concepts of CatIB production, processing, and applications.
- To highlight CatIBs as a promising bionanomaterial and a method for enzyme immobilization.
Main Methods:
- CatIB formation is induced by fusing peptide tags or protein domains to target proteins.
- Heterologous gene expression is used to produce these proteinaceous particles.
Main Results:
- CatIBs can function as carrier-free enzyme immobilizates.
- Their formation efficiency is influenced by construct design and expression conditions.
Conclusions:
- CatIBs represent a versatile bionanomaterial with potential in biocatalysis, synthetic chemistry, and biotechnology.
- CatIB formation offers a generic approach for enzyme immobilization, enhancing stability and reusability.
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