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mdreimann.bsky.social

@mdreimann.bsky.social
87 followers 141 following 4 posts

PhD Student @ Dodonova Lab, EMBL Cryo-EM on eccentric little cells

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mdreimann.bsky.social @mdreimann.bsky.social · 01/10/2026
Check out the new preprint from the lab! Great work led by Gabi on how archaeal RNA Polymerase transcribes through nucleosomes.
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Dina Grohmann @curiousdina.bsky.social · 28/09/2026
🌙 Bringing Archaea to moon! Our latest study with the Orsi lab shows that M. okinawensis can survive, perform methanogenesis, and grow under simulated Enceladus conditions. Yet another reminder of how astonishingly adaptable Archaea are. www.science.org/doi/10.1126/...
science.org
Enceladus-like geochemistry fuels methanogenesis under extreme CO2 limitation
Saturn’s icy moon Enceladus features chemical signatures consistent with an alkaline soda ocean with H2 production via hydrothermal water-rock reactions. Chemolithoautotrophic methanogenesis is thermo...
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joe dobbs @joedobbs.bsky.social · 25/09/2026
Our work investigating the cooperation between gene expression machines is now online @cellpress.bsky.social. Check it out if you're interested in high-throughput #cryoET, transcription and translation, or using structural biology to quantify gene expression in cells! 🔬 www.cell.com/cell/fulltex...
cell.com
Single-cell visual proteomics of a minimal bacterium reveals structural coordination of gene expression machineries
Cryo-electron tomography (cryo-ET) resolves and quantifies an almost complete view of bacterial translation, revealing how gene expression machineries coordinate across the processes of transcription,...
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Rasmus Jensen @rasmusjensen.bsky.social · 25/09/2026
🎉 Out today in Cell: the paper I've been looking forward to sharing for a long time 🎉 We used cryo-ET to find a molecular machine nobody knew existed on the surface of a minimal bacterium, and worked out what it does. 🧵(1/7) #TeamTomo #cryoET
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Simonetta Gribaldo @sgribaldo.bsky.social · 23/09/2026
Interested in #archaea, #methane, #cell-envelopes? New paper out @nature.com ! We discovered an enzyme that specifically cleaves the cell wall of methanogens, revealing a new chemical structure of archaeal peptidoglycan, 50 yrs after its first description www.nature.com/articles/s41... #MicroSky 🧵👇
nature.com
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Cathy Spangler @cathyspangler.bsky.social · 22/09/2026
I'm excited to share our new preprint, where we show that fine-tuning gold nanoparticle conjugation to different Fab structural elements can produce powerful, rigidly coupled, labeling tools for in-situ cryo-ET. Take a look if you want to see an AuNP in an EM map!🔬🧠 www.biorxiv.org/content/10.6...
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Arnaud Krebs @arnaudkr.bsky.social · 14/09/2026
your starter pack for Single Molecule Genomics! Why you should do it (or not) - How you should do it. Collective effort with @vram142.bsky.social @stirlingchurchman.bsky.social @naltemose.bsky.social A Stergachis M Stadler W Greenleaf @embl.org rdcu.be/PmzSEV529GRa
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Vijay Ramani @vram142.bsky.social · 14/09/2026
Everything you wanted to know about single-molecule epigenomics but were too afraid to ask! Wonderful to co-write (h/t ENORMOUS lift by @arnaudkr.bsky.social) this primer on our nascent field. Also, a 💯 example of wonderful colleagues building something *together*, not in competition =)
nature.com
A practical guide to studying genome function using single-molecule genomics
Nature Reviews Molecular Cell Biology - Single-molecule genomics methods are used to study the activity of regulatory factors on individual DNA molecules genome-wide, thereby enabling...
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Tanmay Bharat @tbharat-lab.bsky.social · 15/07/2026
Structural basis of biofilm formation mediated by the Pseudomonas aeruginosa fibrillar adhesin CdrA led by @olivia--smith.bsky.social Collaboration with @alexbateman1.bsky.social , Andres Floto and @geiselbiofilm.bsky.social labs
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Paula Navarro @navarropaula.bsky.social · 03/07/2026
🚨 New in @natmicrobiol.nature.com! We reveal how the antibiotic target PBP1b fortifies the E.coli division site against osmotic rupture. Proud this was completed in our independent labs @dmf-unil.bsky.social, with @avettiger.bsky.social. Congratulations to all authors! 🦠❄️🔬 #teamtomo bit.ly/3SCbOg1 👇
doi.org
The penicillin-binding protein PBP1b fortifies the Escherichia coli division site against osmotic rupture - Nature Microbiology
A specific isoform of PBP1b functions independently of the activator protein, LpoB, to drive generation of a wedge-like peptidoglycan structure that strengthens the division site in Escherichia coli.
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Gaurav Vaidya @gvaidya.bsky.social · 01/07/2026
The first preprint from my PhD is out! :thread: How does an animal choose between two completely different reproductive fates? Here’s how one planarian does it :point_down: www.biorxiv.org/content/10.6...
biorxiv.org
Life-cycle trajectory inference links temperature-gated progenitors to reproductive fate
Temperature shapes reproductive strategies across animals, yet how individuals switch between sexual and asexual reproduction remains unknown. We establish the planarian Phagocata morgani as a model f...
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Nitish Dua @nitishdua.bsky.social · 27/06/2026
Really hyped to share our pre-print on mtDNA replication-fission ! @nanigrotjahn.bsky.social (doi: doi.org/10.64898/202...) 🧵with details below ⤵️
doi.org
ATAD3A structurally links mtDNA replication and mitochondrial fission
Mitochondrial function depends on the maintenance of its genome, and disruptions in copy number and distribution are hallmarks of mitochondrial disorders. Mitochondrial DNA (mtDNA) replication is spat...
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Veijo Salo @veijosalo.bsky.social · 23/06/2026
How does a cell remodel the ER membrane into a lipid droplet? Excited to share our new bioRxiv preprint, where we find that regulated opening of the seipin ring defines a functional ER–lipid droplet interface — and identify SMLR1 as a regulator of this transition. www.biorxiv.org/content/10.6...
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Mike Dorrity @mwdorr.bsky.social · 19/06/2026
First pre-print from the lab, a collaborative effort led by Jess Bourn @bournsupremacy.bsky.social, a fantastic PhD in my group. We resolve a key problem in development + evolution: how do we quantify heterochrony and link temporal variation to phenotype? www.biorxiv.org/content/10.6...
biorxiv.org
Quantitative mapping of heterochrony to species-specific phenotypes
The genetic program of animal development is conserved, but its rate of execution varies across species. Heterochrony, shifts in the relative timing of developmental events, generates phenotypic varia...
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mdreimann.bsky.social @mdreimann.bsky.social · 19/06/2026
Super excited to share my first paper from my PhD in the @dodonova-sveta.bsky.social lab. We visualise how chromatin from archaeal cells is organised using cryo-ET and SPA. Big thanks to everyone involved in this project!
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joe dobbs @joedobbs.bsky.social · 03/06/2026
Super cool cryo-ET work from my colleague Xiaohan resolving a ton of ribosome assembly intermediates in the nuclei of human cells!
Figure 4 from the preprint
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Nature Cell Biology @natcellbio.nature.com · 01/06/2026
☕ @nicolettapetridou.bsky.social & co report a feedback loop between Nodal signaling and tissue phase transitions in zebrafish #embryos. Nodal alters adhesion, triggering tissue rigidification and reduced porosity, which limits its diffusion and speeds up Lefty expression. go.nature.com/4vgBYmo
go.nature.com
Tissue rigidity phase transition shapes morphogen gradients - Nature Cell Biology
Autorino et al. report a feedback loop between Nodal signalling and tissue phase transitions in zebrafish embryos. Nodal alters adhesion, triggering tissue rigidification and reduced porosity, which l...
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Nature Methods @natmethods.nature.com · 02/06/2026
AreTomoLive: a preprocessing pipeline for cryo-ET that streamlines tomographic alignment, reconstruction and contrast enhancement. www.nature.com/articles/s41...
nature.com
AreTomoLive: automated reconstruction of comprehensively corrected and denoised cryo-electron tomograms in real time and at high throughput - Nature Methods
AreTomoLive is an accelerated preprocessing pipeline for cryo-electron tomography that streamlines tomographic alignment, reconstruction and contrast enhancement. This pipeline prioritizes automation ...
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Eva Karasmanis @evakarasmanis.bsky.social · 29/05/2026
New preprint alert! Ever wonder if cells can talk to each other? Tunneling nanotubes (TNTs) are tiny bridges between cells used to pass organelles, nucleic acids, proteins & even viruses but we've never seen inside them clearly. Until now! 👇🧵 biorxiv.org/content/10.64898/2026.05.27.728322v1
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cryoEM papers @cryoempapers.bsky.social · 29/05/2026
The molecular architecture of tunneling nanotubes www.biorxiv.org/content/10.64898/2026.05.27.728322v1 #cryoEM
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Allegretti Lab @matteoall.bsky.social · 27/05/2026
We're happy to announce our new preprint! 🐸 easymode: general pretrained networks for cellular cryo-ET. Segment ~20 cellular features – ribosomes, microtubules, mitochondria, nuclei & more – with zero model training. 🔗 doi.org/10.64898/202... 🧵👇
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Tanmay Bharat @tbharat-lab.bsky.social · 25/05/2026
Sub-cellular chemical mapping using correlated cryogenic electron and mass spectrometry imaging online @natmethods.nature.com, led by Hannah Ochner, collaboration with @catfranco.bsky.social and @kiranrpatil.bsky.social labs doi.org/10.1038/s415...
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Higor Rosa @hvdrosa.bsky.social · 14/05/2026
Thrilled to share the updated video of my paper in Nature with Maciej (under supervision of @simonemattei.bsky.social & @jomaalab.bsky.social) Proud to use Cryo-ET to uncover how hibernation factors are key to translation restart! To model PTMs in situ and render animations fulfilled my PhD dream!🥹🎉
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cryoEM papers @cryoempapers.bsky.social · 09/05/2026
LowDoseWizard - rapid and standardised setup of low-dose cryo-TEM imaging in SerialEM www.biorxiv.org/content/10.64898/2026.05.05.722937v1 #cryoEM
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