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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Hirsch, C. (2020). On the decomposability of mod 2 cohomological invariants of Weyl groups. Commentarii Mathematici Helvetici, 95(4), 765-809. https://doi.org/10.4171/CMH/503

Yan, Y., Chang, C., Su, J., Venø, M. T. & Kjems, J. (2020). Osteoblastogenesis Alters Small RNA Profiles in EVs Derived from Bone Marrow Stem Cells (BMSCs) and Adipose Stem Cells (ASCs). Biomedicines, 8(10), 1-17. Article 387. https://doi.org/10.3390/biomedicines8100387

Lyons, J. A., Timcenko, M., Dieudonné, T., Lenoir, G. & Nissen, P. (2020). P4-ATPases: how an old dog learnt new tricks — structure and mechanism of lipid flippases. Current Opinion in Structural Biology, 63, 65-73. https://doi.org/10.1016/j.sbi.2020.04.001

Nielsen, K. H. (2020). På den sorte liste. Weekendavisen, Sektion 4 (Ideer), 5.

The ICGC/TCGA Pan-Cancer Analysis of Whole Genomes Consortium (2020). Pan-cancer analysis of whole genomes. Nature, 578(7793), 82-93. https://doi.org/10.1038/s41586-020-1969-6

Nielsen, K. H. (2020). På sikker afstand. Weekendavisen, (Sektion 4 (Ideer)), 5.

Jakob, D. S., Wang, H., Zeng, G., Otzen, D. E., Yan, Y. & Xu, X. (2020). Peak Force Infrared - Kelvin Probe Force Microscopy. Angewandte Chemie International Edition, 59(37), 16083-16090. https://doi.org/10.1002/anie.202004211

He, J., Becares, E. R., Thulstrup, P. W., Gamon, L. F., Pedersen, J. N., Otzen, D., Gourdon, P., Davies, M. J. & Hägglund, P. (2020). Peroxynitrous acid (ONOOH) modifies the structure of anastellin and influences its capacity to polymerize fibronectin. Redox Biology, 36, Article 101631. https://doi.org/10.1016/j.redox.2020.101631

Nielsen, K. H. (2020). Pest eller petitesse. Weekendavisen, Sektion 4 (Ideer)(46), 5. Article e7fc83e9.

Baldry, M., Bojer, M. S., Najarzadeh, Z., Vestergaard, M., Meyer, R. L., Otzen, D. E. & Ingmer, H. (2020). Phenol-Soluble Modulins Modulate Persister Cell Formation in Staphylococcus aureus. Frontiers in Microbiology, 11, Article 573253. https://doi.org/10.3389/fmicb.2020.573253

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