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Stępień P, Świątek S, Robles MYY, Markiewicz-Mizera J, Balakrishnan D, Inaba-Inoue S, De Vries AH, Beis K, Marrink SJ, Heddle JG. CRAFTing Delivery of Membrane Proteins into Protocells using Nanodiscs. ACS APPLIED MATERIALS & INTERFACES 2023; 15. [PMID: 38015973 PMCID: PMC10726305 DOI: 10.1021/acsami.3c11894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 11/30/2023]
Abstract
For the successful generative engineering of functional artificial cells, a convenient and controllable means of delivering membrane proteins into membrane lipid bilayers is necessary. Here we report a delivery system that achieves this by employing membrane protein-carrying nanodiscs and the calcium-dependent fusion of phosphatidylserine lipid membranes. We show that lipid nanodiscs can fuse a transported lipid bilayer with the lipid bilayers of small unilamellar vesicles (SUVs) or giant unilamellar vesicles (GUVs) while avoiding recipient vesicles aggregation. This is triggered by a simple, transient increase in calcium concentration, which results in efficient and rapid fusion in a one-pot reaction. Furthermore, nanodiscs can be loaded with membrane proteins that can be delivered into target SUV or GUV membranes in a detergent-independent fashion while retaining their functionality. Nanodiscs have a proven ability to carry a wide range of membrane proteins, control their oligomeric state, and are highly adaptable. Given this, our approach may be the basis for the development of useful tools that will allow bespoke delivery of membrane proteins to protocells, equipping them with the cell-like ability to exchange material across outer/subcellular membranes.
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Affiliation(s)
- Piotr Stępień
- Malopolska
Centre of Biotechnology, Jagiellonian University, Krakow 30-387, Poland
| | - Sylwia Świątek
- Malopolska
Centre of Biotechnology, Jagiellonian University, Krakow 30-387, Poland
| | | | | | - Dhanasekaran Balakrishnan
- Malopolska
Centre of Biotechnology, Jagiellonian University, Krakow 30-387, Poland
- Postgraduate
School of Molecular Medicine, Żwirki i Wigury 61, Warsaw 02-091, Poland
| | - Satomi Inaba-Inoue
- Department
of Life Sciences, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, U.K.
- Rutherford
Appleton Laboratory, Research Complex at
Harwell, Didcot, Oxfordshire OX11 0FA, U.K.
| | - Alex H. De Vries
- Groningen
Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen 9747 AG, The Netherlands
| | - Konstantinos Beis
- Department
of Life Sciences, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, U.K.
- Rutherford
Appleton Laboratory, Research Complex at
Harwell, Didcot, Oxfordshire OX11 0FA, U.K.
| | - Siewert J. Marrink
- Groningen
Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen 9747 AG, The Netherlands
| | - Jonathan G. Heddle
- Malopolska
Centre of Biotechnology, Jagiellonian University, Krakow 30-387, Poland
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