Reposted by Andrea DallapèRasmus 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 1023696
Reposted by Andrea Dallapèjoe dobbs @joedobbs.bsky.social · 25/09/2026Our 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.comSingle-cell visual proteomics of a minimal bacterium reveals structural coordination of gene expression machineriesCryo-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,... 28426
Reposted by Andrea DallapèFlorian Mayer @florianmayer.bsky.social · 11/09/2026Excited to share our preprint on Ignicoccus cell divison: only the inner membrane divides, progeny cells accumulate in cell clusters and pop-out! www.biorxiv.org/content/10.6... Great work with the labs: @buzzbaum.bsky.social @curiousdina.bsky.social @anja1.bsky.social @tbharat-lab.bsky.socialbiorxiv.orgThe life cycle of an archaeon with multiple membranesMany prokaryotes are diderms. They divide using an FtsZ division ring to simultaneously constrict physically coupled inner and outer membranes to form daughter cells with two membranes. Currently, onl... 07534
Reposted by Andrea DallapèRicardo D. Righetto @lifeonthewedge.bsky.social · 08/09/2026A wild publishing ride to get here... but finally! (first bioRxiv: January 5th, 2024 🙃) Amazing work from @lorenzlamm.bsky.social and colleagues 🤗 Special thanks to the community who jumped early on the boat, sharing feedback and training data to make MemBrain v2 a reality 🙏🏽nature.comMemBrain v2: an end-to-end tool for the analysis of membranes in cryo-electron tomography - Nature MethodsMemBrain v2 enables streamlined analysis of membranes in cryo-electron tomography by providing user-friendly tools for membrane segmentation, membrane protein localization and spatial analysis, suppor... 17125
Reposted by Andrea Dallapèmareikejordan.bsky.social @mareikejordan.bsky.social · 04/09/2026Check out our preprint on the structural mechanisms of how LEM2 and ESCRTs seal the nuclear envelope. Awesome collaboration with @karenpalacior.bsky.social who brought my structures to life 💃🔬❄️🌀 @hummerlab.bsky.social www.biorxiv.org/content/10.6... 212951
Reposted by Andrea DallapèDenis Chrétien @dchretien.bsky.social · 28/08/2026Dear #CryoEM and #Microtubule enthusiasts, I’m thrilled to have been part of this exciting journey: www.biorxiv.org/content/10.6... We discovered and characterized a manchette-like microtubule machinery in Xenopus spermatids, likely involved in sperm reshaping and membrane reorganization. (1/3) 33014
Reposted by Andrea DallapèbioRxiv Molecular Biology @biorxiv-molbio.bsky.social · 28/08/2026Imaging large fields-of-view at high resolution in cryo-ET with square beam montaging www.biorxiv.org/content/10.64898/20… 01810
Reposted by Andrea DallapèJamie Cate @jhdcate.bsky.social · 27/08/2026Congrats to the authors of the two teams who discovered these enzymes! Ours here. 5/ www.biorxiv.org/content/10.6...biorxiv.orgEnzymatic formation of a conserved isoaspartate in ribosomal protein uS11Isoaspartate (isoAsp) formation is typically viewed as a "molecular clock" through nonenzymatic degradation of aspartate or asparagine during protein aging. Here we report a nearly universal enzymatic... 11610
Reposted by Andrea DallapèTanmay Bharat @tbharat-lab.bsky.social · 23/08/2026Molecular architecture of colossal surface layers from hyperthermophilic archaea Led by @idocaspy.bsky.social (Ido) In collaboration with @mkrupovic.bsky.social and @vikramalva.bsky.social labs doi.org/10.64898/202... 215450
Reposted by Andrea DallapèRhys Grinter @rhyswg.bsky.social · 18/08/2026Out now in @natmicrobiol.nature.com: Bacillus subtilis builds protein filaments that act as a pseudomembrane, pulling quinone out of the bilayer and carrying it into the cytosol for reduction by NADH dehydrogenase, well away from the membrane itself. doi.org/10.1038/s415... 1/5 27624
Reposted by Andrea DallapèFlorent Waltz @florentwaltz.bsky.social · 27/07/2026This story is now published in @natplants.nature.com ! 🎉🎩 Check out the final article here: nature.com/articles/s41477-026-02361-1 Very similar to the original bioRxiv preprint, with the addition of some cool polysome analysis (in the supplementals)! Thanks and congrats to everyone involved! 🙏nature.comChloroplast-encoded small subunit extensions reshape the Chlamydomonas chlororibosome - Nature PlantsUsing in situ cryo-electron tomography, researchers found a unique ‘arm’ domain on the small subunit of Chlamydomonas chlororibosomes. This discovery suggests that chlororibosome structure is more evo... 29936
Reposted by Andrea DallapèNicholas Bellono @nbellono.bsky.social · 09/07/2026How did octopuses evolve novel traits? Rishav Mitra, Richard Han, Trey Scott, et al serendipitously discover a unique ribosome adaptation that increases the accuracy of protein synthesis and evolved alongside their elaborate nervous systems vs deep sea relatives. www.biorxiv.org/content/10.6... 18740
Reposted by Andrea DallapèChi-Min Ho @cmholab.bsky.social · 30/06/2026Incredibly proud of Messi Haile @mehsehret.bsky.social, a founding member of the Ho Lab, for her beautiful work uncovering the inner workings of a central piece of the malaria parasite invasion machinery: the malarial moving junction, out today in @cellpress.bsky.social! tinyurl.com/4p3md2eb 🦠❄️🔬 410935
Reposted by Andrea DallapèNogales Lab @nogaleslab.bsky.social · 29/06/2026Excited to share our new preprint with the Yildiz and Janke labs on how Ndc80 and Ska complexes cooperate on microtubules through a SKA3 tether and tubulin tail interface to stabilize attachment! Congrats to Ju and Ipsita for leading this exciting study! www.biorxiv.org/content/10.6... 14012
Reposted by Andrea DallapèNitish Dua @nitishdua.bsky.social · 27/06/2026Really hyped to share our pre-print on mtDNA replication-fission ! @nanigrotjahn.bsky.social (doi: doi.org/10.64898/202...) 🧵with details below ⤵️doi.orgATAD3A structurally links mtDNA replication and mitochondrial fissionMitochondrial 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... 25622
Reposted by Andrea DallapèPlaschka lab @plaschkalab.bsky.social · 18/06/2026Now published! We investigated how polyadenylated RNAs are targeted for decay in the human nucleus. www.nature.com/articles/s41... (1/5) 18035
Reposted by Andrea DallapèBiohub @biohub.org · 16/06/2026Cryo-ET gives unparalleled views of cellular structures, but targeted sample preparation by cryo-FIB milling has been a constraint. No longer! A new workflow yields close to 100% targeting success for centrioles & other small structures. Read the preprint ⤵️ www.biorxiv.org/content/10.6... 04617
Reposted by Andrea DallapèbioRxiv Biophysics @biorxiv-biophys.bsky.social · 06/06/2026A Crossed Laser Phase Plate for CryoEM www.biorxiv.org/content/10.64898/20… 088
Reposted by Andrea DallapèarXiv q-bio.QM Quantitative Methods @qbioqm-bot.bsky.social · 01/06/2026Muyuan Chen: Gaussian Mixture Model-Based Focused Refinement for Enhanced Flexible Structure Determination in CryoEM and CryoET arxiv.org/abs/2605.30518 arxiv.org/pdf/2605.30518 arxiv.org/html/2605.30518 032
Reposted by Andrea DallapècryoEM papers @cryoempapers.bsky.social · 29/05/2026The molecular architecture of tunneling nanotubes www.biorxiv.org/content/10.64898/2026.05.27.728322v1 #cryoEM 054
Reposted by Andrea DallapèCell Press @cellpress.bsky.social · 29/05/2026"Mitochondria-lysosome coupling contributes to lysosome acidification and aging" Read more in Molecular Cell: www.cell.com/molecular-ce... Chuankai Zhou & colleagues @cp-molcell.bsky.social 052
Reposted by Andrea DallapècryoEM papers @cryoempapers.bsky.social · 22/05/2026Easymode: general pretrained networks for cellular cryo-ET enable flexible approaches to subtomogram averaging www.biorxiv.org/content/10.64898/2026.05.19.726344v1 #cryoEM 0157
Reposted by Andrea DallapèMaria Barna @mbarnalab.bsky.social · 21/05/2026’m thrilled to share that our paper is out in Molecular Cell! We developed Ribo-Tweezer, a new technology that lets us rapidly and reversibly remove specific proteins from mature ribosomes to ask what they actually do in translation. 1227
Reposted by Andrea DallapèHigor Rosa @hvdrosa.bsky.social · 14/05/2026Thrilled 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!🥹🎉 49621
Reposted by Andrea DallapèBram Verhagen @bramverhagen.bsky.social · 13/05/2026Happy to share our preprint! Using massively parallel reporter assays, single-molecule imaging, deep learning and cryo-EM, we decode the sequence requirements for translation initiation and describe the “extended translation initiation sequence” (eTIS) that modulates start codon recognition. 🧵👇 12813
Reposted by Andrea DallapècryoEM papers @cryoempapers.bsky.social · 24/04/2026Interleaved multi-magnification cryo-electron tomography bridges cellular and structural biology www.biorxiv.org/content/10.64898/2026.04.21.719848v1 #cryoEM 085
Reposted by Andrea DallapèSylvie Callegari @sylviecallegari.bsky.social · 06/04/2026Another postdoc position for my lab is now open. This one is for a biochemist/cell biologist who really likes mitochondria and ubiquitin. If this is you, please apply here: www.seek.com.au/job/91277535seek.com.auBiochemist/Cell Biologist Research Officer Job in Parkville, Melbourne VIC - SEEKAn excellent opportunity is available for a Research Officer / Senior Research Officer to join the Callegari Lab at WEHI. 01420
Reposted by Andrea DallapèBui Lab @McGill @builab.bsky.social · 12/04/2026The cartwheel was first visualized ~70 years ago in the symbiont Trichonympha in the wood termite gut. We’ve discovered the cartwheel’s secret: a unique zigzag stacking of SAS-6 tetramers that facilitates the iconic 9-fold symmetry of cilia. #cellbiology #teamtomo #SAS6 #cartwheel 25013
Reposted by Andrea DallapèDebnath Ghosal @debnathghosal.bsky.social · 12/04/2026One of biggest mysteries in biology: how did complex eukaryotic cells evolve from simple microbes? ~1.8 billion years ago, an archaeal cell likely merged with a bacterium to form the first eukaryotic cell, but can we ever find direct evidence of this transformative event? 🦠 🚶♂️ 310840
Reposted by Andrea DallapèbioRxiv Cell Biology @biorxiv-cellbio.bsky.social · 07/04/2026Molecular architecture of the ciliary base in mammalian multiciliated cells www.biorxiv.org/content/10.64898/20… 01710
Reposted by Andrea DallapèJan-Hannes Schaefer @jhschaef.bsky.social · 07/04/2026We identified the maltoside detergent DM as an effective and easy solution to address preferred orientation in cryo-EM. Helped me switch from graphene grids. Special congrats to Maria Rafiq! @landerlab.bsky.social @nanigrotjahn.bsky.social @wisemanlab.bsky.social #cryoEM doi.org/10.64898/202... 35424
Reposted by Andrea DallapèNicholas Bellono @nbellono.bsky.social · 02/04/2026More on Pablo et al's study with nice tide pool octopus photos from Anik Grearson :) wapo.st/47D71zuwapo.stThe secrets of the sex lives of octopuses, revealedNew research reveals how octopuses essentially have a tongue, an arm, a penis and a sperm cell all rolled into one appendage. 184
Reposted by Andrea DallapèKelly Nguyen @kellythd-nguyen.bsky.social · 26/03/2026Proud to share the yeast telomerase structure, led by the talented @hongmiaohu.bsky.social in collaboration with the Wellinger and Chartrand labs. Discovered 37 years ago and took us nearly 7 years but totally worth the wait 😍. www.science.org/doi/10.1126/... www.youtube.com/watch?v=gFE4...youtube.comCryo-EM structure of yeast telomeraseYouTube video by MRC Laboratory of Molecular Biology 920675
Reposted by Andrea DallapèCarter Lab @carter-lab.bsky.social · 24/03/2026Excited to share our work on the structure and function of cytoplasmic lattices within mouse embryos. A collaborative effort with @niakanlab.bsky.social and work led by @kashishsingh.bsky.social and @inaharasimov.bsky.social . It is now out on BioRxiv: www.biorxiv.org/content/10.6... 620684
Reposted by Andrea DallapèSjors Scheres @sjorsscheres.bsky.social · 18/03/2026We're excited to announce the beta-release of #RELION-5.1! 🥳 This release has important updates on our #amyloid processing pipeline, as described in this preprint: doi.org/10.64898/202... There are also some tweaks for #teamtomo. #OpenSoftwareAcceleratesScience 314947
Andrea Dallapè @daddea.bsky.social · 20/02/2026Wow! From C39 to C13! Congratulations @olibclarke.bsky.social @fravallese.bsky.social 010
Reposted by Andrea DallapècryoEM papers @cryoempapers.bsky.social · 19/02/2026The vault particle is enclosed by a C13-symmetric cap with a positively charged exterior pubmed.ncbi.nlm.nih.gov/41706843/ #cryoEM 086
Reposted by Andrea Dallapèfitzpatricklab.bsky.social @fitzpatricklab.bsky.social · 17/02/2026Pulsed #lasers integrated with #cryoEM: @fitzpatricklab.bsky.social postdoc Daniel Du aims to boost contrast in #cryoET zuckermaninstitute.columbia.edu/making-world-s-best-microscopes-biology-better zuckermaninstitute.columbia.edu/science-life-daniel-du elifesciences.org/reviewed-preprints/109793v1 0206
Reposted by Andrea DallapècryoEM papers @cryoempapers.bsky.social · 19/02/2026Integrase anchors viral RNA to the HIV-1 capsid interior pubmed.ncbi.nlm.nih.gov/41708858/ #cryoEM 096
Reposted by Andrea DallapèKranzusch Lab @kranzuschlab.bsky.social · 17/02/2026Max Fels @mfels.bsky.social from our lab discovers giant DNA viruses that infect amoeba encode eIF4E and the entire suite of 4F complex proteins to control mRNA translation, including beautiful crystal structures of viral 4E bound to modified mRNA 5' caps: www.cell.com/cell/fulltex... 19336
Reposted by Andrea DallapèRicardo D. Righetto @lifeonthewedge.bsky.social · 17/02/2026Beautiful #phage structure 🤩 Congrats to the colleagues in Brazil! 🍊🦠 www.biorxiv.org/content/10.6... #CryoEM #xanthomonas 0345
Reposted by Andrea DallapèDimitry Tegunov @dtegunov.bsky.social · 16/02/2026I had Claude make this as a mini-game for Relay's disconnect screen (like Chrome's dinosaur), but then pivoted to stand-alone. In this game, you have to find Euler angles matching the target projection, i.e. cosplay RELION. It can be pretty hard. Works on mobile too! warpem.github.io/euler-hunt/warpem.github.ioEuler HuntCan you find the Euler angles of a cryo-EM projection? 04615
Reposted by Andrea DallapèEdoardo Gianni @edogia.bsky.social · 13/02/2026How could a simple self-replicating system emerge at the origins of life? RNA polymerase ribozymes can replicate RNA, but existing ones are so large that their self-replication seems impossible. Could they be smaller? Excited to share our latest work in @science.org on a new small polymerase. 1/nscience.orgA small polymerase ribozyme that can synthesize itself and its complementary strandThe emergence of a chemical system capable of self-replication and evolution is a critical event in the origin of life. RNA polymerase ribozymes can replicate RNA, but their large size and structural ... 10509215
Reposted by Andrea DallapèLucas Tafur @tafurlab.bsky.social · 13/02/2026It took a while but it’s finally published! The GAP activity of SEAC (GATOR) is a metabolic switch that allows cells to quickly respond to changes in amino acid levels, both for inhibition and reactivation. 0117
Reposted by Andrea DallapèClockwork @watchclockwork.com · 31/01/2026💪 NEW VIDEO: Flying over the A-band of an atomic-scale model of a vertebrate muscle sarcomere. Let's explore the molecular mechanics that make your muscles work. Rendered using @bradyajohnston.bsky.social 's molecular nodes Model based on the incredible work of the @raunser-lab.bsky.social lab 32712
Reposted by Andrea DallapèBen Engel @cellarchlab.com · 30/01/2026Excited to share this detailed biophysical study of #PhaseSeparation in the Pyrenoid, an algal microcompartment that fixes a third of the Earth's #CO2 🌏. We combine methods across scales, in vitro 🧪 and in vivo 🦠 Thanks for the very fun collaboration! 🤗 #PlantScience 🌾 #TeamTomo 🔬 #LivingPhysics 🧬🧶 16519
Reposted by Andrea DallapèStructura Biotechnology @structurabio.bsky.social · 27/01/2026🚀 CryoSPARC v5.0 BETA is here! We’re excited to deploy another major #CryoSPARC release to help enable and accelerate #cryoEM data analysis. v5 has a redesigned underlying software system and many new features - highlights in thread! Full changelog: cryosparc.com/updates/v5.0.0 16734
Reposted by Andrea DallapèMari de Sautu @maridesautu.bsky.social · 27/01/2026Check out our new preprint! We uncover the full molecular mechanism of rotavirus membrane penetration and cytosolic escape using cryo-ET, live-cell imaging, and single-molecule assays. (1/3) 🔗 biorxiv.org/content/10.6... 27218
Reposted by Andrea DallapèarXiv q-bio.QM Quantitative Methods @qbioqm-bot.bsky.social · 27/01/2026Muyuan Chen, Muchen Li, Renjie Liao: Point transformer for protein structural heterogeneity analysis using CryoEM arxiv.org/abs/2601.18713 arxiv.org/pdf/2601.18713 arxiv.org/html/2601.18713 023