Controlling Protein Enrichment in Lipid Sponge Phase Droplets using SNAP–Tag Bioconjugation
Journal Article
·
· ChemBioChem: a European journal of chemical biology
- Univ. of California, San Diego, La Jolla, CA (United States)
- Universidade da Coruña (Spain)
- Argonne National Lab. (ANL), Lemont, IL (United States)
All cells use organized lipid compartments to facilitate specific biological functions. Membrane-bound organelles create defined spatial environments that favor unique chemical reactions while isolating incompatible biological processes. Despite the fundamental role of cellular organelles, there is a scarcity of methods for preparing functional artificial lipid-based compartments. In this work, we demonstrate a robust bioconjugation system for sequestering proteins into zwitterionic lipid sponge phase droplets. Incorporation of benzylguanine (BG)-modified phospholipids that form stable covalent linkages with an O6-methylguanine DNA methyltransferase (SNAP-tag) fusion protein enables programmable control of protein capture. We show that this methodology can be used to anchor hydrophilic proteins at the lipid-aqueous interface, concentrating them within an accessible but protected chemical environment. SNAP-tag technology enables the integration of proteins that regulate complex biological functions in lipid sponge phase droplets, and should facilitate the development of advanced lipid-based artificial organelles.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- US Army Research Office (ARO); USDOE Office of Science (SC), Basic Energy Sciences (BES); University of California; Xunta de Galicia
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1879855
- Journal Information:
- ChemBioChem: a European journal of chemical biology, Journal Name: ChemBioChem: a European journal of chemical biology Journal Issue: 5 Vol. 23; ISSN 1439-4227
- Publisher:
- ChemPubSoc EuropeCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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