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Javi

@structjavi.bsky.social
664 followers 585 following 10 posts

Post-doc at the @wilflinglab.bsky.social in @mpibp.bsky.social Previously EMBL Hamburg #StructuralBiology under liquid Nitrogen #cryoEM / #cryoET Mountain-lover He/him

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Reposted by Javi
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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Casper Berger @casperberger.bsky.social · 23/09/2026
We developed Adaptive Polishing for the consistent preparation of ~150 nm thin FIB-lamellae. This was done by using imaging feedback to adjust parameters for each lamella, or Adaptive Milling, rather than applying a fixed recipe. Preprint: doi.org/10.64898/202...
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bioRxiv Molecular Biology @biorxiv-molbio.bsky.social · 28/08/2026
Imaging large fields-of-view at high resolution in cryo-ET with square beam montaging www.biorxiv.org/content/10.64898/20…
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Traffic @traffic-journal.bsky.social · 28/08/2026
Happy 50th anniversary, Clathrin! onlinelibrary.wiley.com/doi/full/10.... @effc.bsky.social
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Jan Philipp Kreysing @jpkreysing.bsky.social · 13/07/2026
Delighted that our story on chromatin architecture inside human cells is now published — the last chapter of my PhD. It was a pleasure working with @sergiocruzleon.bsky.social, @johannesbetz.bsky.social, and everyone involved. #teamtomo www.nature.com/articles/s41...
nature.com
Molecular architecture of heterochromatin at the nuclear periphery of primary human cells - Nature Communications
The 3D organisation of chromatin inside a human cell is still not fully resolved. Here the authors reveal that in situ cryo-ET resolves individual nucleosomes and predicts DNA linkers, thus showing th...
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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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The French History Podcast @fhp.bsky.social · 23/06/2026
All of France is scorching hot today. Except for one village in the northwest...
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bioRxiv Molecular Biology @biorxiv-molbio.bsky.social · 22/05/2026
Easymode: general pretrained networks for cellular cryo-ET enable flexible approaches to subtomogram averaging www.biorxiv.org/content/10.64898/20…
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Briggs Group @briggsgroup.bsky.social · 18/05/2026
The architecture of carriers formed by AP3:ARF1 for lysosomal membrane protein transport: www.science.org/doi/10.1126/.... Work from @jggkaufman.bsky.social, in collaboration with @dgershlick.bsky.social and David Owen. @mpibiochem.bsky.social @thecimr.bsky.social
science.org
Architecture of clathrin-independent AP3:ARF1-coated carriers
AP3 generates clathrin-free carriers on endosomes by organizing via ARF1 dimers into elongated membrane-deforming arrays.
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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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Dimitry Tegunov @dtegunov.bsky.social · 03/05/2026
We're super excited to share MissAlignment: a new ML-based approach to reference-free tilt series alignment, spearheaded by @martenchaillet.bsky.social. We think it's going to make your cryo-ET life a lot better. Preprint: www.biorxiv.org/content/10.6... Code: github.com/warpem/miss-... 🧶 Thread:
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Helena Watson @helenawatson.bsky.social · 25/04/2026
Preprint 🧵! I’m really excited to introduce BIGSMALL, an interleaved multi-magnification cryo-ET scheme bridging molecular and cellular scales in a single acquisition! BIGSMALL = 𝐁road 𝐈nformation 𝐆athering 𝐒trategy by 𝐌ultiscale 𝐀cquisition of lame𝐋𝐋a www.biorxiv.org/content/10.6... (1/6)
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Katharina Geißler @kgeissler.bsky.social · 21/04/2026
Out now in Nature Communications! We show that Dictyostelium vaults associate with ER and NE membranes in situ and encapsulate ribosomes with defined orientations, shining new light on their cellular function! #TeamTomo #TeamMassSpec #ProtistsOnSky www.nature.com/articles/s41...
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Max Planck Institute of Biophysics @mpibp.bsky.social · 20/04/2026
That’s a wrap on our @embo.org #cryoFIB & #cryoET course! It was an incredible week of hands-on learning, collaboration, and shared expertise, made possible by dedicated organizers, incredible trainers, and an engaged group of participants.
A large diverse group of people waving and smiling at the camera in front of scientific posters displayed on a wall.
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Carter Lab @carter-lab.bsky.social · 24/03/2026
Excited 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...
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cryoEM papers @cryoempapers.bsky.social · 19/03/2026
A Surfactant Cocktail Overcomes Air-Water Interface Artifacts in Single-Particle CryoEM www.biorxiv.org/content/10.64898/2026.03.17.712260v1 #cryoEM
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Sonja Welsch @sonjawelsch.bsky.social · 13/03/2026
TIL what "unload sample from Compustage" of a cryo-EM actually looks like. Neat 🙂.
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Pedro Beltrao @pedrobeltrao.bsky.social · 04/03/2026
We have started a project trying to predic the interactions/structures of all yeast protein pairs using an AlphaFold pooling approach. We are making the current dataset open and we welcome collaborations. www.evocellnet.com/2026/03/mapp...
evocellnet.com
Mapping the yeast atructural interactome with AlphaFold3: an open call for collaboration
We are excited to announce the early-stage release of our S. cerevisiae  structural interactome mapping project. Using AlphaFold3 (AF3), w...
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Mara Mueller @muellermara.bsky.social · 19/02/2026
Mammalian cells form hibernating disomes akin to those in bacterial cells - but connected via ribosomal RNA www.science.org/doi/10.1126/... co-first with: @andschwarz.bsky.social with: @lea-dietrich.bsky.social, @sgiando.bsky.social, @erin-schuman.bsky.social and many more 🧵 0/6 #MolBio 🧪
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Juan Carlos De la Concepcion @delaconcepcionjc.bsky.social · 30/01/2026
Please share! My group at @zmbp-tuebingen.bsky.social is offering a post-doctoral position (4 years). We look for a structural biologist with experience in Cryo-EM/Cryo-ET to investigate the mechanisms of host invasion by pathogenic fungi. Deadline February 28th! uni-tuebingen.de/universitaet...
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Wilfling Lab @wilflinglab.bsky.social · 20/01/2026
LLOMe has long been used to study lysosomal damage, yet how it works has remained a mystery. Using cryo-electron tomography, we show it forms amyloid structures inside lysosomes that mechanically rupture membranes – revealing a new paradigm for lysosomal failure. 🔗 doi.org/10.64898/202... #CryoET
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Javi @structjavi.bsky.social · 13/01/2026
New preprint from the lab! 🆕 We combined in situ correlative cryo-ET 🥽🔬with multiscale simulations 🖥️⌨️ to study condensates inside yeast cells 🥼🧪 Link below 👇
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Danielle Grotjahn @nanigrotjahn.bsky.social · 17/11/2025
Prohibitins aren’t hanging out just anywhere in the membrane — they prefer the 💁‍♀️💎✨VIP section💅🪩🥂 Lab all-star @mmedina300kv.bsky.social maps these microdomains using cryo-ET + surface morphometrics. s/o to #teamtomo #cryoET co-authors @hamid13r.bsky.social @attychang.bsky.social @baradlab.com
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Desislava Glushkova @deglushk.bsky.social · 06/11/2025
Just published! We share an open-source workflow to measure membrane thickness from tomograms, including a tutorial with 3D visualizations. We analyze thickness variations across organelles and reflect on where to define a membrane boundary. @becklab.bsky.social #teamtomo rupress.org/jcb/article/...
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Javi @structjavi.bsky.social · 05/11/2025
Now that it’s November and Halloween is over, is it okay to put up the Christmas tree yet?
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Max Planck Institute of Biophysics @mpibp.bsky.social · 23/10/2025
Have you registered to the next EMBO Practical Course on In-situ structural biology by Cryo-FIB and Cryo-ET? 🧊 Join us in Frankfurt for hands-on training on cryo-techniques and networking with experts! 🔗 Apply by Dec 8, 2025: meetings.embo.org/event/26-in-... 📍 Frankfurt | 📆 April 12–20, 2026
Orange and green poster of the In-situ structural biology by Cryo-FIB and Cryo-ET in Frankfurt am Main, with EMBO logo. The poster promotes childcare grants, travel grants and that this is a sustainable event.
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joe dobbs @joedobbs.bsky.social · 15/10/2025
Check out our preprint! With new molecular mechanisms, 140 subtomogram averages, and ~600 annotated cells under different conditions, we @embl.org were able to describe bacterial populations with in-cell #cryoET. And there’s a surprise at the end 🕵️ www.biorxiv.org/content/10.1... #teamtomo
Figure 1 from the preprint
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EMBL @embl.org · 17/09/2025
Are you ready to lead ground-breaking research in Infection Biochemistry? We are recruiting outstanding scientists to establish research groups based at @cssbhamburg.bsky.social tackling fundamental questions in molecular mechanisms of infection. embl.wd103.myworkdayjobs.com/en-US/EMBL/j...
Text box says: "We are hiring".
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Centre for Structural Systems Biology CSSB @cssbhamburg.bsky.social · 04/09/2025
Researchers from CSSB & @mpi-nat.bsky.social have generated a highly potent nanobody that neutralizes a protein essential for the herpes virus infection. Published in @nature.com, the findings promise new therapies to treat & prevent infections @leibnizliv.bsky.social @uni-hamburg.de t1p.de/cxt7a
3D-Animation of the nanobody (light yellow/semi-transparent) inhibiting HSV-2 glycoprotein B. The different domains of gB are color-coded. Three domains are held together by the footprint of the nanobody. IMAGE: Benjamin Vollmer / Centre for Structural Systems Biology
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Tanmay Bharat @tbharat-lab.bsky.social · 31/08/2025
Sub-cellular chemical mapping in bacteria using correlated cryogenic electron and mass spectrometry imaging Congrats Hannah Ochner and authors on this important paper! Strong collaboration with @kiranrpatil.bsky.social www.biorxiv.org/cgi/content/... @mrclmb.bsky.social @wellcometrust.bsky.social
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Jan Philipp Kreysing @jpkreysing.bsky.social · 23/08/2025
More great cryo-ET benchmarking work from my colleagues Maarten Tuijtel, Tomáš Majtner, Beata Turoňová, & @becklab.bsky.social: Systematic study of how tilt increment choice affects downstream TM & STA. Preprint has the optimally balanced tilt increment. #TeamTomo www.biorxiv.org/content/10.1...
biorxiv.org
Optimal tilt-increment for cryo-ET
Cryo-electron tomography (cryo-ET) enables high-resolution, three-dimensional imaging of cellular structures in their native, frozen state. However, image quality is limited by a trade-off between ang...
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Max Planck Institute of Biophysics @mpibp.bsky.social · 18/08/2025
We’re hosting the @embo.org Practical Course on In-situ structural biology by CryoFIB and CryoET in April 2026! 🧬❄️ You can expect hands-on training, cutting-edge methods, and a chance to work alongside leading experts in structural biology. 🔗 Apply by Dec 8, 2025: meetings.embo.org/event/26-in-...
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Javi @structjavi.bsky.social · 06/08/2025
New luminescent animal unlocked!
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Melanie McDowell @melaniemcdowell.bsky.social · 12/07/2025
Proud to share our first lab pre-print: “SND3 is the membrane insertase within a fungal multipass translocon” where @tzujingyang.bsky.social solved the structure of a ribosome-associated SND3-translocon complex involved in ER membrane protein insertion ➡️ doi.org/10.1101/2025...
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Alexey Amunts @amunts.bsky.social · 04/07/2025
Speak up to prevent a major loss for the field. CASP, which helped shaping structural biology including AlphaFold is on the verge of shutting down. NIH funding has lapsed, UC Davis support ends and the core team is being let go. Painfully shortsighted.
science.org
Exclusive: Famed protein structure competition nears end as NIH grant money runs out
Agency silent on funding renewal for contest that inspired creation of AIs that predicted how proteins would fold
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Max Planck Institute of Biophysics @mpibp.bsky.social · 17/06/2025
This is Ana’s third ERC grant! We’re proud to celebrate her success and groundbreaking work here at the Max Planck Institute of Biophysics. #ERCAdG Read more here 🔗 www.biophys.mpg.de/2872321/garcia-saez-awarded-erc-grant
biophys.mpg.de
Ana García-Sáez Awarded Prestigious ERC Grant
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SPC Facility & Garcia-Alai Lab @spcembl.bsky.social · 12/05/2025
Our latest research is out 📄 ! This study provides an interaction map of Sla2 & the regulatory proteins Sla1 & Pan1, predicted by AI modeling & confirmed by molecular biophysics. @lucasdefelipe.bsky.social @meytallandau.bsky.social @emilgustavsson.bsky.social @embl.org @cssbhamburg.bsky.social
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MRC Laboratory of Molecular Biology @mrclmb.ac.uk · 23/04/2025
A colder frontier in cryo-EM 🧪🔬 Chris Russo’s group, inc. Joshua Dickerson, adapted #cryoEM to work at liquid helium temperatures (13 kelvins), where every frame captured contains more information than the equivalent using liquid nitrogen (81 kelvins). Read more: tinyurl.com/mwwcunkc #LMBResearch
The electron cryo-microscope adapted for use at liquid nitrogen temperatures within its custom-made black box.
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Sergio Cruz-León @sergiocruzleon.bsky.social · 11/04/2025
Excited to share our preprint on the molecular architecture of heterochromatin in human cells 🧬🔬w/ @jpkreysing.bsky.social, @johannesbetz.bsky.social, @marinalusic.bsky.social, Turoňová lab, @hummerlab.bsky.social @becklab.bsky.social @mpibp.bsky.social 🔗 Preprint here tinyurl.com/3a74uanv
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Javi @structjavi.bsky.social · 11/04/2025
Look at those nucleosomes! 🧬 Impressive work on chromatin architecture from our colleagues, check it out below! ⬇️
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Charlie Scarff @scarfflab.bsky.social · 09/04/2025
Swinging lever mechanism of myosin shown by time-resolved cryoEM www.nature.com/articles/s41... so glad to finally be able to share this with the community! @astburycentre.bsky.social @astbury-bsl.bsky.social @stemuench.bsky.social @snmcmillan.bsky.social @davidklebl.bsky.social
nature.com
Swinging lever mechanism of myosin directly shown by time-resolved cryo-EM - Nature
A study using time-resolved cryogenic electron microscopy reveals the swinging lever mechanism of myosin, providing information on the molecular basis behind the production of force and movement by my...
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Sven Klumpe @svenklumpe.bsky.social · 09/04/2025
Thrilled to share these experiments on shaping focused ion beams to explore different ways of milling. Here, we explore using different beam geometries to generate cellular thin sections/lamellae. The video shows elongating the beam on a charging spot burn www.biorxiv.org/content/10.1...
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Benedikt Wimmer @bwmr.net · 06/02/2025
Hey #teamtomo, if you often find yourself using the excellent membrain-seg from @lorenzlamm.bsky.social et al., you might find my napari plugin "napari-segselect" useful. Let's say your tomogram contains the edges of two bacterial cells, each with a membrane and cell wall:
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Sylvie Callegari @sylviecallegari.bsky.social · 13/03/2025
Thrilled to share the structure of dimerised human PINK1 docked to an endogenous translocase array on the mitochondrial surface, composed of two TOM complexes, bridged by a VDAC2 dimer! Published today in Science www.science.org/doi/10.1126/... @wehi-research.bsky.social @komanderlab.bsky.social
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Javi @structjavi.bsky.social · 12/03/2025
Interesting sample preparation method moving away from blotting
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Sven Klumpe @svenklumpe.bsky.social · 05/03/2025
Happy to share our manuscript on the in situ visualization of the copia retrotransposon in its final form today published in @cellcellpress.bsky.social www.cell.com/cell/fulltex.... What’s new?
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Javi @structjavi.bsky.social · 07/02/2025
I will think of this paper next time I am there... 😀
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Beck Laboratory @becklab.bsky.social · 17/01/2025
In a great collaboration with @hummerlab.bsky.social and the Kräusslich lab: HIV capsid doesn't break at the NPC; instead, it cracks open the NPC itself! Details in Cell: authors.elsevier.com/sd/article/S... @mpibp.bsky.social @uniheidelberg.bsky.social A thread below:
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Harry Low’s Lab @lowlab.bsky.social · 15/01/2025
Love this.. 👏 MISO: Microfluidic protein isolation enables single particle cryo-EM structure determination from a single cell colony www.biorxiv.org/content/10.1...
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Javi @structjavi.bsky.social · 08/01/2025
Wondering about phase separation and its impact in selective autophagy? Check the latest publication from the lab! ⬇️
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