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Ulf Skoglund

As seen in: British Journal of Cancer, Nature, BioRxiv
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Articles by Ulf Skoglund

Application of nanotags and nanobodies for live cell single-molecule imaging of the Z-ring in Escherichia coli

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By Emma Westlund, Alaska Pokhrel, Ulf Skoglund, Axel Bergenstråle
| BioRxiv
New Results doi: https://doi.org/10.1101/2023.02.19.529144 Abstract Understanding where proteins are localized in a bacterial cell is essential for understanding their function and regulation. This is particularly important for proteins that are involved in cell division, which localize at the division septum and assemble into highly regulated complexes. Current knowledge of these complexes has been greatly facilitated by super-resolution imaging using fluorescent protein fusions.
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Cell shape-independent FtsZ dynamics in synthetically remodeled bacterial cells

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By Bill Söderström, Ulf Skoglund, Alexander Badrutdinov, Helena Chan
| Nature Verified
As a reference for unmodified division rings, we imaged Z-rings in E. coli cells expressing FtsZ-mNeonGreen as the only source of FtsZ22. Under our experimental conditions, this strain produced normal-looking, sharp Z-rings (Supplementary Figure 1) and grew and divided similarly to wild-type (WT) E. coli (MC4100) (Supplementary Figure 2a-e). We then trapped the cells in a vertical position in micron-sized holes that were produced in agarose pads using silica micron pillar arrays14 (Fig.
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FtsZ does not initiate membrane constriction at the onset of division

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By Daniel O. Daley, Biophysics Stockholm, Ulf Skoglund, Bill Söderström
| British Journal of Cancer Verified
Our initial goal was to determine if FtsZ was sufficient to generate a contractile force in vivo. Our working hypothesis was that, if FtsZ was sufficient we should see deformations of the inner membrane when only FtsZ and its membrane tethers FtsA23 and ZipA24 (aka the proto-ring) are present at midcell (but PG synthesizing enzymes are not). We cryogenically preserved Escherichia coli cells expressing a chromosomal copy of FtsZ-GFP by vitrification and imaged them by cryo-CLEM (Supplementary Fig.
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