Engineering Globular Protein Vesicles through Tunable Self-Assembly of Recombinant Fusion Proteins
- Georgia Inst. of Technology, Atlanta, GA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Emory Univ. School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA (United States); Georgia Inst. of Technology, Atlanta, GA (United States)
- Emory Univ. School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA (United States)
Vesicles assembled from folded, globular proteins have potential for functions different from traditional lipid or polymeric vesicles. However, they also present challenges in understanding the assembly process and controlling vesicle properties. From detailed investigation of the assembly behavior of recombinant fusion proteins, this work reports a simple strategy to engineer protein vesicles containing functional, globular domains. This is achieved through tunable self-assembly of recombinant globular fusion proteins containing leucine zippers and elastin-like polypeptides. The fusion proteins form complexes in solution via high affinity binding of the zippers, and transition through dynamic coacervates to stable hollow vesicles upon warming. The thermal driving force, which can be tuned by protein concentration or temperature, controls both vesicle size and whether vesicles are single or bi-layered. Lastly, these results provide critical information to engineer globular protein vesicles via self-assembly with desired size and membrane structure.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1399972
- Journal Information:
- Small, Journal Name: Small Journal Issue: 36 Vol. 13; ISSN 1613-6810
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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journal | March 2020 |
Engineering the Architecture of Elastin‐Like Polypeptides: From Unimers to Hierarchical Self‐Assembly
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journal | February 2020 |
Effect of peptide linker length and composition on immobilization and catalysis of leucine zipper-enzyme fusion proteins
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journal | March 2018 |
Self-assembly of amphiphilic truncated cones to form hollow nanovesicles
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journal | January 2018 |
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