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Designed Asymmetric Protein Assembly on a Symmetric Scaffold
Lenne J M Lemmens1, Job A L Roodhuizen2, Tom F A de Greef2,3
1Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands.
Angewandte Chemie (International Ed. in English)
|April 26, 2020
Summary
Designing synthetic protein assemblies is difficult. This study engineered asymmetric protein complexes using computational modeling and biochemical analysis, revealing key factors for creating new protein functions.
Area of Science:
- Biochemistry
- Structural Biology
- Computational Biology
Background:
- Cellular signaling relies on protein complex formation.
- Creating synthetic asymmetric protein assemblies is a significant challenge in biotechnology.
Purpose of the Study:
- To design and implement the asymmetric assembly of a ternary protein complex.
- To investigate the principles governing the formation of higher-order protein structures.
Main Methods:
- Utilized Rosetta modeling for protein design.
- Performed thermodynamic analysis and biochemical studies.
- Employed mass-balance models for characterization.
Main Results:
- Successfully favored asymmetric assembly of a ternary complex on a 14-3-3 scaffold.
- Identified individual binding affinities and cooperativity as critical design parameters.
- Demonstrated that interface engineering can generate novel asymmetric protein complexes.
Conclusions:
- Asymmetric protein complex assembly can be achieved through rational design.
- Understanding binding affinities and cooperativity is essential for engineering protein assemblies.
- Engineered asymmetric complexes exhibit new functionalities, opening avenues for synthetic biology applications.
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