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OaAEP1-Mediated Enzymatic Synthesis and Immobilization of Polymerized Protein for Single-Molecule Force Spectroscopy
Published on: February 5, 2020
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Enzyme-mediated polymerization inside engineered protein cages
Raphael Frey1, Takahiro Hayashi1, Donald Hilvert1
1Laboratory of Organic Chemistry, ETH Zürich, 8093 Zürich, Switzerland. hilvert@org.chem.ethz.ch.
Chemical Communications (Cambridge, England)
|August 4, 2016
Summary
Engineered lumazine synthase (AaLS) capsids acted as nanoreactors for polymerization. This created uniform polyDAB-capsid nanoparticles using an encapsulated enzyme.
Area of Science:
- Biotechnology
- Materials Science
- Enzyme Engineering
Background:
- Enzyme-mediated polymerization offers a route to novel nanomaterials.
- Controlling nanoparticle size and shape is crucial for applications.
Purpose of the Study:
- To utilize engineered lumazine synthase (AaLS) capsids as nanoreactors.
- To achieve templated polymerization of 3,3-diaminobenzidine (DAB) within AaLS capsids.
Main Methods:
- Engineering variants of lumazine synthase (AaLS) to form capsids.
- Encapsulating engineered ascorbate peroxidase (APEX2) within AaLS capsids.
- Initiating polymerization of 3,3-diaminobenzidine (DAB) via encapsulated APEX2.
Main Results:
- Successful templated formation of polyDAB-nanoparticles.
- Achieved homogeneous size and shape of the resulting polyDAB-capsid nanoparticles.
- Demonstrated the utility of AaLS capsids as effective nanoreactors.
Conclusions:
- Engineered AaLS capsids can serve as scaffolds for enzyme-mediated polymerization.
- This method yields well-defined polyDAB-nanoparticles with controlled morphology.
- Highlights the potential of protein cages in creating advanced nanomaterials.
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