Single Protein-Mediated Vesicle Division

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Recent research news on Artificial Biology

The successful reconstitution of Drs2p–Cdc50p flippase in small and giant polymer lipid hybrid vesicles is illustrated. The hybrid vesicles show adenosine 5′-triphosphate consumption and flipping of 2-dioleoyl-sn-glycero-3-phospho-l-serine lipids from the inner to the outer leaflet. This induced transmembrane asymmetry results in constriction and division of the giant hybrid vesicles.

4 September 2025 by Emilia Djomina Hansen

A collaborative study between the Lyons and Stadler labs, published in Advanced Materials, reports the successful reconstitution of the Drs2p–Cdc50p lipid flippase in polymer–lipid hybrid vesicles, enabling active translocation of negatively charged lipids to establish transmembrane asymmetry. Crucially, the chemical nature of the hydrophobic block in the amphiphilic block copolymers determines the curvature changes that drive vesicle constriction and division. This work marks an important step toward constructing synthetic systems capable of protein-mediated division, advancing the goal of bottom-up self-replicating assemblies.

Read the article published in Advanced Marterials here.

Contact information:
Professor Brigitte Maria Städler
Aarhus University
Interdisciplinary Nanoscience Center (iNANO)
Email: bstadler@inano.au.dk

Tenure track Assistant Professor Joseph Lyons
Aarhus University
Interdisciplinary Nanoscience Center (iNANO)
Email: lyons@inano.au.dk

Recent publications by network

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Venø, M. T., Hansen, T. B., Venø, S. T., Clausen, B. H., Grebing, M., Finsen, B., Holm, I. E. & Kjems, J. (2015). Spatio-temporal regulation of circular RNA expression during porcine embryonic brain development. Genome Biology, 16, Article 16:245. https://doi.org/10.1186/s13059-015-0801-3

Hirsch, C., Delaney, G. & Schmidt, V. (2015). Stationary Apollonian Packings. Journal of Statistical Physics, 161(1), 35-72.

Mohammad-Beigi, H., Shojaosadati, S. A., Marvian, A. T., Pedersen, J. N., Klausen, L. H., Christiansen, G., Pedersen, J. S., Dong, M., Morshedi, D. & Otzen, D. E. (2015). Strong interactions with polyethylenimine-coated human serum albumin nanoparticles (PEI-HSA NPs) alter α-synuclein conformation and aggregation kinetics. Nanoscale, 7, 19627-19640. https://doi.org/10.1039/c5nr05663b

McGovern, R. E., Snarr, B. D., Lyons, J. A., McFarlane, J., Whiting, A. L., Paci, I., Hof, F. & Crowley, P. B. (2015). Structural study of a small molecule receptor bound to dimethyllysine in lysozyme. Chemical Science, 6(1), 442-449. https://doi.org/10.1039/c4sc02383h

Tian, P., Boomsma, W., Wang, Y., Otzen, D., Jensen, M. H. & Lindorff-Larsen, K. (2015). Structure of a Functional Amyloid Protein Subunit Computed Using Sequence Variation. Journal of the American Chemical Society, 137(1), 22-25. https://doi.org/10.1021/ja5093634

Jensen, R. K., Plum, M., Tjerrild, L., Jakob, T., Spillner, E. & Andersen, G. R. (2015). Structure of the omalizumab Fab. Acta Crystallographica Section F: Structural Biology Communications, 71(Pt 4), 419-426. https://doi.org/10.1107/S2053230X15004100

Estrela, N., Franquelim, H. G., Lopes, C., Tavares, E., Macedo, J. A., Christiansen, G., Otzen, D. E. & Melo, E. P. (2015). Sucrose prevents protein fibrillation through compaction of the tertiary structure but hardly affects the secondary structure. Proteins: Structure, Function, and Bioinformatics, 83(11), 2039-2051. https://doi.org/10.1002/prot.24921

Wang, Z., Li, P., Chen, Y., Liu, J., Zhang, W., Guo, Z., Dong, MD. & Li, Y. (2015). Synthesis, characterization and electrical properties of silicon-doped graphene films. Journal of Materials Chemistry C, 3, 6301-6306. https://doi.org/10.1039/c5tc00563a

Schiølin, K. (2015). Teknologipessimisme: Træk af slægtskabet mellem den klassiske teknologifilosofi og den pessimistiske viljesmetafysik: Schopenhauer, Nietzsche, Jünger og Heidegger . Aarhus Universitet, Institut for Kommunikation og Kultur - Informationsvidenskab.

Li, D., Stansfeld, P. J., Sansom, M. S. P., Keogh, A., Vogeley, L., Howe, N., Lyons, J. A., Aragao, D., Fromme, P., Fromme, R., Basu, S., Grotjohann, I., Kupitz, C., Rendek, K., Weierstall, U., Zatsepin, N. A., Cherezov, V., Liu, W., Bandaru, S. ... Caffrey, M. (2015). Ternary structure reveals mechanism of a membrane diacylglycerol kinase. Nature Communications, 6, Article 10140. https://doi.org/10.1038/ncomms10140

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