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@fitzpatricklab

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17.08.2023
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Latest posts by @fitzpatricklab

Effective laser phase plates should be transformational for cryo-EM and this proof of principle study shows a pulsed system successfully intergrated in a SEM. A powerful step towards functional systems in a cryo-TEM

19.02.2026 20:40 👍 9 🔁 1 💬 0 📌 0
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Pulsed #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

17.02.2026 19:37 👍 20 🔁 6 💬 0 📌 1
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Neuroscientists are always looking for new tools that can bring the brain into sharper focus. For postdoc Daniel Du, that means shooting lasers at state-of-the-art microscopes to take better snapshots of the building blocks of the brain:

zuckermaninstitute.columbia.edu/science-life...

17.02.2026 17:11 👍 4 🔁 2 💬 0 📌 0
Close-up of a laser that can improve cryo-electron tomography images. (Credit: Fitzpatrick lab).

Close-up of a laser that can improve cryo-electron tomography images. (Credit: Fitzpatrick lab).

How do you make one of the best microscopes in biology even better? Postdoc Daniel Du of the Fitzpatrick lab zapped electrons with a laser. The new research in @elife.bsky.social with Cornell’s Maxson lab promises improved snapshots of the brain:
zuckermaninstitute.columbia.edu/making-world...

17.02.2026 14:26 👍 3 🔁 2 💬 0 📌 0
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🚀 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

27.01.2026 20:36 👍 66 🔁 32 💬 1 📌 1

Don't have skis here but there was snowboarding in central park lol

28.01.2026 00:31 👍 1 🔁 0 💬 0 📌 0
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Frozen Bryant Park fountain in snowy NYC!

28.01.2026 00:15 👍 4 🔁 0 💬 1 📌 0
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Tightening the focus of subcellular snapshots: Combined approach yields better cell slices for cryoET imaging Taking images of tiny structures within cells is tricky business. One technique, cryogenic electron tomography (cryoET), shoots electrons through a frozen sample.

A combined approach using light microscopy and ion beam milling enhances the precision of cryoET sample preparation, enabling more accurate targeting of small, rare structures within cells. doi.org/hbkb94

17.01.2026 15:20 👍 4 🔁 1 💬 0 📌 0

Reversible lipid-mediated pH-gating of connexin-46/50 by cryo-EM pubmed.ncbi.nlm.nih.gov/41526355/ #cryoEM

13.01.2026 18:47 👍 3 🔁 2 💬 0 📌 0

Amyloid-mediated RNA uptake by sperm for embryonic delivery https://www.biorxiv.org/content/10.64898/2025.12.10.693493v1

12.12.2025 04:47 👍 2 🔁 1 💬 0 📌 0
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Excited to share our latest research, out today in Cell (@cellpress.bsky.social)

Using cryo-EM and cell-based studies, we reveal how large nutrient sensing protein complexes form at the lysosomal membrane to turn off mTORC1 and halt anabolic signalling.

Read the paper here: doi.org/10.1016/j.ce...

09.01.2026 07:11 👍 33 🔁 10 💬 1 📌 0
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Another member of the Fitzpatrick/Shapiro quad @zuckermanbrain.bsky.social embarks on setting up his lab!

If you wish to use #cryoEM #cryoET to study how viruses enter & evade the immune system, & design antibody-based vaccines, check out the Roark lab:

isb.med.upenn.edu/research/cryoem-and-cryoet

02.01.2026 22:55 👍 4 🔁 0 💬 0 📌 0

Organelles do NOT have a single uniform pH.
And if you think they must, because “protons diffuse fast,” this paper is for you.
A thread on why that assumption is wrong; and what we found instead. 🧵 1/n

17.12.2025 00:46 👍 516 🔁 221 💬 28 📌 31

Thrilled to see our review article "The evolutionary origins of synaptic proteins" highlighted on the cover of Nature Reviews Neuroscience 🤩.

www.nature.com/articles/s41...

@msarscentre.bsky.social 🧠✨🧬🌊🪼🧽

17.12.2025 15:25 👍 120 🔁 37 💬 1 📌 2
DAQ-Score: Automatic AI-based Cryo-EM Structure Model Validation!
DAQ-Score: Automatic AI-based Cryo-EM Structure Model Validation! YouTube video by Kihara Bioinformatics Lab

A quick tutorial on the DAQ structure validation score for protein models derived from cryo-EM. DAQ evaluates amino acid–level accuracy in your model. Consider including a DAQ validation report in your next publication!
www.youtube.com/watch?v=YRAT...

14.12.2025 20:44 👍 8 🔁 5 💬 0 📌 0
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I’m very happy (and grateful!) to share that I’m featured in a Nature Cancer Viewpoint about starting my lab at CNIO.

In the Lab (www.rcglab.com) we’re combining AI, protein design and structural biology to study protein structures and design novel protein therapeutics for cancer. 🔬

14.12.2025 18:30 👍 9 🔁 5 💬 1 📌 0
Cryo-correlative light and electron tomography of dopaminergic axonal varicosities reveals non-synaptic modulation of cortico-striatal synapses - Nature Communications The basic features of dopamine release sites are still largely unknown. Here, the authors determine the ultrastructure of fluorescent dopaminergic and glutamatergic synaptosomes in mouse striatum usin...

🔬 Just out in @NatureComms!
Using cryo-CLEM and cryo-ET, we reveal the unique ultrastructure of dopaminergic varicosities in the striatum.
Amazing collaboration with @davip-bdx.bsky.social and Etienne Herzog @iins-bordeaux.bsky.social
Congratulations to Paul and Robin for this fantastic work! 🎉

13.12.2025 20:11 👍 26 🔁 8 💬 1 📌 0
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December Update of DAQ-Score DB! Quality evaluations of protein models from cryo-EM. Now includes evaluation of 258,956 protein chains.
Check at daqdb.kiharalab.org
It's very easy to compute DAQ for your protein model. Add the validation result in your publication: em.kiharalab.org/algorithm/da...

13.12.2025 14:15 👍 10 🔁 3 💬 0 📌 0
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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

12.12.2025 15:53 👍 103 🔁 35 💬 2 📌 1

😍 Zhou Lab on fire!!! 🔥🔥🔥 #cryoet #teamtomo

12.12.2025 13:55 👍 12 🔁 3 💬 0 📌 0
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Love the caption of Fig. 3 in this impressive preprint:
"A Goodsell-esque 3D orthogonal rendering of an IsoNet2-processed FIB-milled tomogram of C. reinhardtii"
doi.org/10.64898/202...
Since I am no expert, what does the cryoET community think of IsoNet? @cellarchlab.com
doi.org/10.1038/s414...

12.12.2025 08:38 👍 67 🔁 13 💬 3 📌 3

IsoNet2 determines cellular structures at submolecular resolution without averaging www.biorxiv.org/content/10.64898/2025.12.09.693325v1 #cryoEM

12.12.2025 11:42 👍 15 🔁 8 💬 0 📌 0
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Our authors in 2025 As 2025 comes to an end, we want to highlight some of the rising young faculty members who have published their exciting work from different areas of structural biology in Structure this year. We have...

Many thanks to @cellpress.bsky.social for highlighting our #cryoEM research:

cell.com/structure/fu...

05.12.2025 17:07 👍 3 🔁 0 💬 0 📌 0
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cryo-EM map at 1.9 Å resolution...

04.12.2025 18:10 👍 4 🔁 0 💬 0 📌 0

I wrote a bit about practical considerations for using #cryo-ET labels and some things to work on if we want to find any protein in any cell.

authors.elsevier.com/a/1mA6h,LqAr...

01.12.2025 15:43 👍 15 🔁 4 💬 0 📌 0

Delighted to have contributed to this paper and amazing resource. In-silico protein-protein interaction screening has huge promise for generating novel hypotheses and building models into low-res #cryo-EM and #teamtomo maps.

13.11.2025 13:27 👍 15 🔁 3 💬 0 📌 0

Seeing is believing-Plasmodium falciparum translation in action pubmed.ncbi.nlm.nih.gov/41202797/ #cryoEM

08.11.2025 21:58 👍 7 🔁 4 💬 0 📌 0
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Excited to share our latest @nature.com: How does naloxone (Narcan) stop an opioid overdose? We determined the first GDP-bound μ-opioid receptor–G protein structures and found naloxone traps a novel "latent” state, preventing GDP release and G protein activation.💊🧪 🧵👇 www.nature.com/articles/s41...

05.11.2025 16:22 👍 123 🔁 35 💬 6 📌 2
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Please RT. Post-doc opportunity alert! 💥 closing 10th December.. Come join our team (www.thelowlab.org) at Imperial, London, working on the structure and mechanism of bacterial secretion systems.

For more details and to apply please see

www.imperial.ac.uk/jobs/search-...

04.11.2025 17:19 👍 36 🔁 39 💬 2 📌 1
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Endogenous structure of antimalarial target PfATP4 reveals an apicomplexan-specific P-type ATPase modulator Nature Communications - Here, the authors present the 3.7 Å cryoEM structure of native sodium efflux pump PfATP4 from Plasmodium falciparum, revealing a bound protein that they term...

Learn how our hunt for the native structure of top antimalarial target PfATP4🧂led to the discovery of PfABP, an unknown essential binding partner, out now! @natcomms.nature.com 👉 rdcu.be/eLRlH 🦠🔬❄️

A team effort led by @mehsehret.bsky.social & Anurag Shukla @akhilvaidya.bsky.social! #cryoEM #malaria

20.10.2025 12:55 👍 63 🔁 21 💬 1 📌 1