Happy birthday to Charles Darwin, patron saint of tired scientists, grumpy fieldworkers, and hating your own manuscript.

Some cool E3 ligase structures here with calmodulin-mediated oligomerisation. Also interesting collection/processing to deal with preferred orientation. www.biorxiv.org/content/10.6...

📣 The 2026 Midwest DNA Repair Symposium is coming to Kansas City (registration is open) 🗓 May 30–31, 2026 ✨ Talks will be selected from abstracts, with a strong focus on trainees and new investigators. Please RT & share with your labs! 🔗 sites.google.com/view/kumc-mi...

Co-chairing IUCr 2026 MS-012 “Next-generation validation metrics for macromolecular structures” with Deborah Harrus (@deborah83.bsky.social)! Focus: new validation concepts/methods/best practices across all methods. Submit abstracts by Feb 15; early-bird reg by Mar 31. www.iucr2026.org

New on the CryoET Data Portal: ~27,000 tomograms of affinity-captured lysosomes from HEK293T cells across 4 physiological states. Includes raw data, AreTomo3 reconstructions & Membrain-Seg annotations. Openly available for reuse! cryoetdataportal.czscience.com/depositions/...

We have two funded postdoctoral positions available. Topics encompass: -Next gen light-sheet fluorescence microscopy instrumentation -Structured illumination microscopy and other approaches to extend the resolution limit. -Nonlinear microscopy combined with adaptive optics / phase conjugation

🎉Kicking off 2026 with our first paper from the Freudenthal lab in NAR. Ribonucleotides reshape telomeric G4s and are resistant to RNase H2 repair. Congrats to the authors and huge thanks to our collaborator Hui-Ting Lee! academic.oup.com/nar/article/...

#teamtomo gets another quantitative cell biology tool! We extend our Surface Morphometrics pipeline to measure membrane thickness. Alongside many biological findings, we show that our 3D measurements closely match in vitro vesicle measurements from 2D EM (collab w/Neal Waxham and Fred Heberle).

Larissa Lopes Cavalcante et al.: Crystal structure of di­acet­y­lene unveiled by X-ray and neutron diffraction, Raman spectroscopy and periodic DFT ##IntermolecularInteractions##MolecularCrystals... ##IUCrhttps://journals.iucr.org/paper?S2052252525010486

The atomic ensemble time scale at the NIST Boulder campus has failed.

While stories of singular DNA changes that drove evolution of human brain/behaviour remain seductive, advances across multiple fields of biology cast doubt on such simplistic narratives of our origins. A new paper from my lab shows how biobanks may speak to this fundamental question.🧪 Explainer🧵👇1/n

Justin Bergmann et al.: Linear-scaling aspherical crystallographic refinement of proteins: a case study for crambin and rubredoxin ##HirshfeldAtomRefinement##QuantumCrystallography@lundsuni@RWTH...##IUCrhttps://journals.iucr.org/paper?S2052252525010188

Holy cow the Zhou lab at UCLA is cooking with Isonet 2 - www.biorxiv.org/content/10.6... Averaging-free direct visualization of ribosome translational state! #teamtomo #cryoet

Last Friday was the defense of my PhD thesis entitled "Structural basis of anaerobic enzymes mediated by noncanonical metalloclusters" after 4 yrs at the @synmikro.bsky.social 🎓🎓 Big thanks to my supervisor @schullerjm.bsky.social and the whole Schuller lab for their continuous and massive support!

Attending #CellBio2025? Come join the Signaling Squad at our mini symposium on “Spatiotemporal Control of Cell Signaling Across Scales” in Room 120 from 9-11 am! I’m not saying we’re the best because there are so many great sessions, but it may be a save the best for last situation 😉

Now out in full form. Again, a big thanks to #teamtomo and @alisterburt.bsky.social for developing the infrastructure to build this on. journals.iucr.org/d/issues/202...

What an honor to see @attychang.bsky.social’s work featured in @jcb.org The Year in Cell Biology 2025 collection! Even more special that it coincides with my first #cellbio2025 conference 🙂 s/o to co-authors @baradlab.com @hamid13r.bsky.social @zidlab.bsky.social #teamtomo #cellbio25

Happy to share our cryoEM Ensemble Optimization method! 🎉It infers optimal structures and their weights directly from individual cryoEM images - no maps just physics! with David Sliva-Sánchez, @erikhthiede.bsky.social & Roy Lederman www.biorxiv.org/content/10.6...

For readers interested in drug repurposing, this article overviews computational approaches to drug repurposing and evaluates available in silico resources rdcu.be/eSY57 www.nature.com/articles/s41...

We are thrilled to announce the first official release (v0.1.8) of #𝗯𝗲𝗱𝗱𝗲𝗿, the successor to one of our flagship tool, #𝗯𝗲𝗱𝘁𝗼𝗼𝗹𝘀! Based on ideas we conceived of long ago (!), this was achieved thanks to the dedication of Brent Pedersen. 1/n

It’s great to see people thinking about tracking errors in Fourier terms! EM_placement tries to infer effects of orientation bias from half maps, but it would be far better to do this directly in the reconstruction process. No surprise it’s people like ZO and Dominika doing this work!

Preserving Information and Integrity in Cryo-EM: A Fourier-Space Deposition Approach https://www.biorxiv.org/content/10.1101/2025.11.26.690836v1

Mineral Matters # 892 - Offretite, Erionite-K, Clinoptilolite-Ca, Rock Island Dam, Washington, USA #mineralmatters #minerals #🧪 open.substack.com/pub/mineralm...

Why LLPS Scaffolds Cannot Exist – A Thermodynamic Thread If you consider arguments logical, please share. Else please expose logical faults 🧵👇

Guess what is frozen! 😂

Assembly, architecture and functional roles of microbial surface layers Review article published in @natrevmicro.nature.com with @bupbuse.bsky.social, Andriko von Kügelgen and @vikramalva.bsky.social. S-layers are everywhere! www.nature.com/articles/s41...

The proton motive force maintains mtDNA euploidy by balancing mtDNA replication with cell proliferation https://www.biorxiv.org/content/10.1101/2025.10.27.684790v1