DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Engineering Globular Protein Vesicles through Tunable Self-Assembly of Recombinant Fusion Proteins

Journal Article · · Small
 [1];  [1]; ORCiD logo [2];  [3];  [4];  [1]
  1. Georgia Inst. of Technology, Atlanta, GA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Emory Univ. School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA (United States); Georgia Inst. of Technology, Atlanta, GA (United States)
  4. 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

References (33)

Topological Effects on Globular Protein-ELP Fusion Block Copolymer Self-Assembly journal December 2014
Two-Step Protein Self-Assembly in the Extracellular Matrix journal June 2013
Two-Step Protein Self-Assembly in the Extracellular Matrix journal June 2013
Recombinant Protein Technology book January 1993
The science and applications of emulsions — an overview journal November 1994
Liposomal drug delivery systems: From concept to clinical applications journal January 2013
Polymersomes for drug delivery: Design, formation and characterization journal July 2012
Self-Assembled Materials Made from Functional Recombinant Proteins journal September 2016
Techniques To Control Polymersome Size journal October 2015
Polymeric Vesicles: From Drug Carriers to Nanoreactors and Artificial Organelles journal October 2011
Quantification of the Effects of Chain Length and Concentration on the Thermal Behavior of Elastin-like Polypeptides journal May 2004
Improved Non-chromatographic Purification of a Recombinant Protein by Cationic Elastin-like Polypeptides journal May 2007
Thermally Triggered Self-Assembly of Folded Proteins into Vesicles journal December 2014
Small-Angle Neutron-Scattering Studies of Nonionic Surfactant Vesicles journal August 2000
Small-Angle Neutron-Scattering Studies of Nonionic Surfactant Vesicles journal August 2000
Small-Angle Neutron Scattering (SANS) Study of Vesicles and Lamellar Sheets Formed from Mixtures of an Anionic and a Cationic Surfactant journal November 1999
Are Thermoresponsive Microgels Model Systems for Concentrated Colloidal Suspensions? A Rheology and Small-Angle Neutron Scattering Study journal August 2004
Templated formation of giant polymer vesicles with controlled size distributions journal May 2009
Thermo-responsive and fluorescent cellulose nanocrystals grafted with polymer brushes journal January 2015
Self-assembling dual component nanoparticles with endosomal escape capability journal January 2015
Polymeric vesicles in biomedical applications journal January 2011
One-step preparation of giant lipid vesicles with high encapsulation efficiency using an electrospray technique journal January 2012
Self-assembly of tunable protein suprastructures from recombinant oleosin journal July 2012
Effect of protein fusion on the transition temperature of an environmentally responsive elastin-like polypeptide: a role for surface hydrophobicity? journal January 2004
An introduction to small-angle neutron scattering journal December 1988
Designed heterodimerizing leucine zippers with a ranger of pIs and stabilities up to 10-15 M journal March 2001
Self-Assembly of Mesoscopic Metal-Polymer Amphiphiles journal January 2004
Self-Assembled Aggregates of Rod-Coil Block Copolymers and Their Solubilization and Encapsulation of Fullerenes journal March 1998
Polymersomes: Tough Vesicles Made from Diblock Copolymers journal May 1999
Amphiphiles Self-Assembly: Basic Concepts and Future Perspectives of Supramolecular Approaches journal January 2015
Liposome: classification, preparation, and applications journal February 2013
Limiting factors in single particle cryo electron tomography text January 2012
Limiting Factors in Single Particle cryo Electron Tomography journal July 2012

Cited By (4)

Complex microparticle architectures from stimuli-responsive intrinsically disordered proteins journal March 2020
Engineering the Architecture of Elastin‐Like Polypeptides: From Unimers to Hierarchical Self‐Assembly journal February 2020
Effect of peptide linker length and composition on immobilization and catalysis of leucine zipper-enzyme fusion proteins journal March 2018
Self-assembly of amphiphilic truncated cones to form hollow nanovesicles journal January 2018