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Hannah R Bridges

@hrbridges.bsky.social
720 followers 240 following 4 posts

Biochemist and Structural Biologist❄️🔬, occasional artist, keeper of orchids, converted cat person 🐾| all views my own

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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 24/09/2026
🇨🇦 Today we kicked off our hands-on workshop, “Beyond Consensus Refinements: Advanced Cryo-EM Data Processing with CryoSPARC,” in collaboration with The Hospital for Sick Children @sickkidsto.bsky.social! Excited for two days of diving deeper into advanced #cryoEM data processing with #CryoSPARC. 🔬
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 16/09/2026
🚀 Register now for the 2026 Stanford-SLAC CryoEM Center (S2C2) Data Processing Workshop, December 9-11! We’re excited to contribute as #CryoSPARC instructors to this hybrid workshop, together with instructors from CryoDRGN, EMAN2 and AreTomo! More info and registration 👉 bit.ly/4gXbnXd
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 10/09/2026
💡 The idea is simple: getting to know your data is often the shortcut to more efficient particle picking. In our latest #CryoSPARC blog post, we cover how to speed up #cryoEM data processing through efficient early curation of your dataset. 👉 cryosparc.com/blog/curatio...
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Guillaume Gaullier @guillawme.eurosky.social · 02/09/2026
This paper was a nice side quest that started as a random encounter with @hrbridges.bsky.social at the poster session of the 2025 @ccpem.bsky.social Spring Symposium. It was very satisfying to finally see the macro domain of ALC1 that had escaped all previous structures of ALC1-nucleosome complexes!
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 01/09/2026
💊 The Pain Paradox: Activating TRPV1 to Silence Its Response - Researchers leveraged rational drug design, functional experiments, and #cryoEM to characterize a new capsaicin-inspired TRPV1 agonist with prolonged analgesic effects. Read more in the #CryoSPARC Blog 👉 cryosparc.com/blog/trpv1-m...
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Structura Biotechnology @structurabio.bsky.social · 27/08/2026
🛠️ Even the most carefully managed IT environments need to be prepared for the unexpected. In #CryoSPARC v5, we introduced Instance Recovery, a built-in recovery system for unforeseen database loss or corruption, adding another layer of resilience to our #cryoEM software. Read more 👉 bit.ly/4xlZMGS
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 25/08/2026
📽️ Did you miss our talk at the Spring CCP-EM Symposium 2026? You can now watch the full talk from Structura, where we share some of the latest and upcoming developments in #CryoSPARC and single-particle #cryoEM: Check out the full talk here 👇 www.youtube.com/watch?v=Rilg...
youtube.com
New Developments for Single Particle Cryo-EM Data Processing in CryoSPARC | Ali Punjani (Structura)
YouTube video by CCP-EM
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 20/08/2026
🔬Malaria Invasion at Molecular Resolution: From Protein Inhibitors to Membrane Remodeling In a recent Cell publication, researchers at Columbia University resolved the endogenous structure of the malaria moving junction staple using #cryoEM. Read more in the #CryoSPARC Blog 👉 bit.ly/46aX6jl
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Reposted by Hannah R Bridges
Lis Lowe @lislowe.bsky.social · 15/08/2026
New preprint out - Jenn’s hard work over the last few years collaborating with @jnb-lab.bsky.social, Overkleeft Lab in Leiden, Spencer Williams, Hannah Bridges at Cryosparc and @pmoyniha.bsky.social. Feat. her beautiful 1.5A cryo structure with a covalent inhibitor 😍. www.biorxiv.org/content/10.6...
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 17/08/2026
🚀 Preprint alert: cFAR and Relative Signal: Diagnosing Preferred Orientation in Single-Particle #CryoEM Explore how cFAR, tFAR, and Relative Signal provide complementary diagnostics for preferred orientation, tested across 14 #EMPIAR datasets and compared with established metrics 👉 bit.ly/4wBY1Ev
cFAR and Relative Signal: Diagnosing Preferred Orientation in Single-Particle CryoEM
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 13/08/2026
🔄 Mixing Two Cryo-EM Datasets on Purpose: A Cryo-EM Heterogeneity Challenge What happens when you deliberately mix two #cryo-EM datasets containing different conformational states? Our latest #CryoSPARC blog distills the practical lessons from the accompanying FaNaC1 case study 👉 bit.ly/3ScIZa3
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 30/07/2026
🔬 Cryo-EM Reveals the Molecular Machinery of Tubulin Assembly In a recent study from @ucdavis.bsky.social, #cryoEM and #CryoSPARC were used to uncover the molecular mechanism underlying α/β-tubulin biogenesis! Read more on the latest CyoSPARC blog 👉 cryosparc.com/blog/tubulin
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 03/08/2026
✨ We’re at the Microscopy & Microanalysis conference in Milwaukee (WI) this week! Join us during session B04.2, where we’ll be showcasing recent #CryoSPARC developments and discussing the latest advances in single-particle #cryoEM data processing and analysis. 👉 mmconference.microscopy.org
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 23/07/2026
🚀 Can automation solve preferred orientation in your #cryoEM datasets? After automating processing across 21 GPCR datasets in #CryoSPARC, we updated the workflow to be even more robust to preferred orientation, achieving improved map quality over manual processing. Read more 👉 bit.ly/3RyOIGG
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 21/07/2026
🧩 Why can two refinements with very different particle counts produce nearly identical maps? Our new “Digging Deeper” series breaks down #CryoSPARC case studies in a practical way, starting with how refinement parameters shape reconstruction quality. Read more 👉 cryosparc.com/blog/paramet...
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 14/07/2026
✉️ The latest #CryoSPARC Newsletter is out! Highlights include: 🔹 Sept 2026 workshop hosted with SickKids 🇨🇦 🔹 New cryosparc-tools video 🔹 New case study on discrete heterogeneity 🔹 Small-protein #cryoEM advances 🔹 Dynamic masking guide (v5) Read more here: mailchi.mp/b8fb173dac5c...
Sign up for the newsletter: https://cryosparc.com/#newsletter
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 08/07/2026
🔬Using #SingleParticle #cryo-EM on plaque-mimicking nanodiscs, researchers determined multiple connexin assembly states and uncovered lipid-protein interactions that may help understand gap junction organization and function. Read more in the latest #CryoSPARC Blog 👉 cryosparc.com/blog/gap-jun...
cryosparc.com
CryoSPARC | Mind The Gap: Cryo-EM Reveals Lipids Intercalating Connexin Assemblies
Using single particle cryo-EM on plaque-mimicking nanodiscs, researchers determined multiple connexin assembly states and uncovered lipid-protein interactions that may help understand gap junction org...
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 06/07/2026
🇨🇦 The Toronto-based #CryoSPARC Workshop in collaboration with SickKids is back this September! Dive deep into single particle data processing with the experts at Structura. 🗓️ When | Sept 24-25, 2026 📍Where | SickKids Patient Support Centre, Toronto Info and registration: cvent.me/dL1wem #cryoEM
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 30/06/2026
☀️ Last week we had the pleasure of contributing to the UCSC #CryoEM Workshop in Santa Cruz with a hands-on #CryoSPARC data processing session. ✨ Thank you to the organizers and everyone who participated. We look forward to many more opportunities to contribute to workshops like this!
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 25/06/2026
🚀 Can automation scale #cryoEM? We recently demonstrated it is possible to make #cryo-EM more routine and scalable testing across 21 challenging #GPCR datasets, a real-world scenario for #SBDD, achieving results equal or better than manual processing. Read more 👉 cryosparc.com/blog/automat...
cryosparc.com
CryoSPARC | Automated Workflows in CryoSPARC™
How to make use of one-click, automated data processing workflows that can provide equal or better results as manual processing
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 23/06/2026
☀️ Structura will be at the UCSC CryoEM Workshop in Santa Cruz this week, leading a hands-on workshop on #cryoEM #SingleParticleAnalysis with #CryoSPARC. Looking forward to exchanging ideas and strategies, and chatting about all things cryo-EM! See you there!🔬 👉 sites.google.com/view/ucsccry...
Meet us at the UCSC Cryo-EM Workshop
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 09/06/2026
🔍 Sample heterogeneity is both a challenge and an opportunity in #cryoEM data processing. In our latest #CryoSPARC case study we explore EMPIAR-10927, a dataset with acetogenin-bound mitochondrial Complex I, that reveals many more complexes according to the data processing strategy 👉 bit.ly/4uihh8V
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Case Study: Discrete heterogeneity in a sample of Acetogenin-bound complex I (EMPIAR 10927) | CryoSPARC Guide
Processing EMPIAR-10927 including separating targets using Per-particle scales or custom settings in Ab-Initio Reconstruction, and using 3DVA to guide sub-classification choices.
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Reposted by Hannah R Bridges
James A. Letts @lettsscience.bsky.social · 10/11/2025
How does the well tolerated anti-hyperglycemic drug #metformin inhibit mitochondrial complex I? In our new paper, we use structures, MD and kinetics to show that metformin inhibits by a distinct mechanism that more hydrophobic, less well tolerated, biguanides. www.nature.com/articles/s41...
nature.com
Hydrophilic metformin and hydrophobic biguanides inhibit mitochondrial complex I by distinct mechanisms - Nature Structural & Molecular Biology
He, Teng and Yang et al. report how metformin, the widely used antidiabetic drug, inhibit its target, the respiratory complex I, through a distinct state-dependent, inhibitor trapping mechanism, thus ...
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 05/06/2026
🦠 How does the human immune system defeat measles? #cryoEM and #CryoSPARC reveal the answer. 🔬 A recent study from @lji.org provides new insights into how the human immune system recognizes and neutralizes measles virus. Read more in the latest #CryoSPARC Blog 👉 cryosparc.com/blog/measles
cryosparc.com
CryoSPARC | A New Step in the Fight Against Measles
How Cryo-EM allows a closer look at the Human neutralizing antibodies targeting the measles virus
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 02/06/2026
For years, the #cryoEM community viewed ~50 kDa as the practical lower size limit for SPA. This was challenged by Kim et al., who introduced the HR-HAIR method and demonstrated structure determination of proteins below 30 kDa using #CryoSPARC. Read more 👉 bit.ly/3RHMxAt
bit.ly
CryoSPARC | The Resolution Revolution Is Still Ongoing
High-Resolution Ab-Initio Reconstruction: Extending Cryo-EM to Smaller Particles with CryoSPARC™
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 27/05/2026
🚀 We're excited to announce the stable release of CryoSPARC v5! After a successful public beta and months of testing, we’re excited to share this major milestone, made possible by feedback from the amazing #CryoSPARC community. Learn more 👉 cryosparc.com/blog/v5-0-st... #cryoEM #StructuralBiology
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 25/05/2026
🔬 We’ll be at the 6th NY Area #CryoEM Meeting on May 27, presenting recent developments in #CryoSPARC for Homogeneous Ab Initio Refinement and workflows for small proteins. bit.ly/4dYMUze We’re also proud to support the meeting as a sponsor — stop by our poster to learn more!
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 21/05/2026
cryosparc-tools is a standalone Python library that connects to #CryoSPARC and is designed to advance your #cryoEM data processing via scripting. 🚀 Watch this new video for an overview of cryosparc-tools, and explore the resources linked in the description 👉 youtu.be/QY7t67c9bQ8
youtu.be
CryoSPARC Tools: Simple scripting for advanced cryo-EM processing
YouTube video by Structura Biotechnology Inc.
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Reposted by Hannah R Bridges
EMBL-EBI @ebi.embl.org · 18/05/2026
What is the value of open data for the life sciences? 📈 New report by Frontier Economics shows that EMBL-EBI data resources save users an average of 11 hours/week/person, leading to £11.8bn/year in research productivity gains. s.embl.org/EMBL-EBI-202... #opendata
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Structura Biotechnology @structurabio.bsky.social · 15/05/2026
What an incredible #Cryo-EM SPA mini-course last week, hosted by @royalmicrosoc.bsky.social & ThermoFisher Scientific! 🚀 Huge thanks to all the participants who joined the webinar, and to the experts who shared their insights on #SingleParticle #cryoEM workflows.
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Structura Biotechnology @structurabio.bsky.social · 07/05/2026
We will be at the @proterosma.bsky.social IBA Conference in Boston next week! Stop by our poster to chat about the latest developments in #CryoSPARC, including new results from fully automated data processing for #sbdd repeat-target scenarios & v5 features 🔬  bit.ly/49hQoKo #SingleParticle #Cryo-EM
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Structura Biotechnology @structurabio.bsky.social · 27/04/2026
🔬After learning how to collect #cryoEM data, this final webinar shows how data processing can unlock the highest-resolution insights possible. Join us for Part 3 of the Cryo-EM SPA mini-course with @royalmicrosoc.bsky.social & ThermoFisher Scientific — register now! 🗓️ May 5 👉 bit.ly/4cdEnrr
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Thermo Fisher Scientific Cryo-EM SPA introductory mini-course (14 April, 21 April & 5 May)
Learn the fundamentals of cryo-EM Single Particle Analysis (SPA) in this Cryo-EM Essentials introductory mini-course.
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John Rubinstein @johnrubinstein.bsky.social · 01/05/2026
After two days in the beautiful new SickKids Patient Support Centre, the first @sickkidsto.bsky.social @structurabio.bsky.social CryoSPARC workshop is now in the books! Outstanding teaching by Rich Waldo from Structura, and logistics by Samir Benlekbir (SickKids) and Saara Virani (Structura).
A classroom of cryo-EM scientists, their brains recently filled with the latest and greatest methods for cryo-EM image analysis.Rich explains the finer points of analyzing flexible protein structures with cryoSPARC
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Structura Biotechnology @structurabio.bsky.social · 05/05/2026
Last week we had our #CryoSPARC Workshop in collaboration with the Hospital for Sick Children (SickKids) in Toronto 🇨🇦 It was a pleasure to meet all the wonderful participants and learn from each other! We’re looking forward to future #cryoEM workshops! 🚀
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Structura Biotechnology @structurabio.bsky.social · 23/04/2026
We are at the CCP-EM Spring Symposium XII in Nottingham! Come check out our talk (Session 6, 11:00) and Poster 12 (Session 1) to stay updated on new developments for #SingleParticle #Cryo-EM Data Processing in #CryoSPARC!
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Jennifer Cash @jencash.bsky.social · 20/03/2026
At the #cshlcourses cryo-EM course, Rich Waldo from @structurabio.bsky.social gave us a tutorial on cryoSPARC and did a fabulous job! I was honored to be used for an Einstein from noise demo.
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Structura 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
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Structura Biotechnology @structurabio.bsky.social · 20/11/2025
🚀 Hiring: Cryo-EM Application Scientist, Marketing! Develop and deliver high-impact scientific marketing content, illustrate the value of new #CryoSPARC features and #cryoEM advances, and help scientists understand how our tools can help solve their problems. structura.bio/careers/appl...
structura.bio
Structura Bio | Structura Bio
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bioRxivpreprint @biorxivpreprint.bsky.social · 11/11/2025
ALC1 Finds a New Foothold on the Nucleosome's Super-Groove www.biorxiv.org/content/10.1101/202…
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 30/10/2025
On a gruelling hunt for rare associated molecules in your #cryoEM particle stack and not sure where to look? Discover practical tips and tricks in our new case study using #CryoSPARC v4.7.1 where we find and refine a low-population interaction partner! guide.cryosparc.com/processing-d...
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Reposted by Hannah R Bridges
Structura Biotechnology @structurabio.bsky.social · 20/10/2025
🚀 Introducing fully automated data processing for repeat-target #cryoEM. Using new tools in #CryoSPARC, it is now possible to obtain resolutions & map quality equal to or better than manual processing, with zero user intervention. Preprint: www.biorxiv.org/content/10.1...
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Structura Biotechnology @structurabio.bsky.social · 10/09/2025
Advanced #cryoEM workflows are easy in #CryoSPARC: use the Low-Level Results Interface to combine upstream extracted particles with downstream pose and CTF information, use a volume result from an intermediate iteration of a refinement to create a mask, and more! guide.cryosparc.com/application-...
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Structura Biotechnology @structurabio.bsky.social · 05/08/2025
Flexibility can be frustrating when processing a #cryoEM dataset. If your target has a wobbly domain, check out our new case study on FaNaC1 for continuous heterogeneity tips in #CryoSPARC! guide.cryosparc.com/processing-d...
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MitoCarriers @mitocarriers.bsky.social · 25/07/2025
Our review on the peculiar properties of mitochondrial carriers of the SLC25 family out: portlandpress.com/biochemj/art...
Characterised members of the human SLC25 mitochondrial family. Members of the mitochondrial carriers are shown in rainbow (blue to red) cartoon and surface representations with their primary substrates shown in sphere representations to scale. Only one paralogue is shown.
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Miro Astore @miroastore.bsky.social · 23/07/2025
That's a wrap! The results of the first #cryoEM heterogeneity challenge are up on biorxiv! biorxiv.org/content/10.110
biorxiv.org
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Structura Biotechnology @structurabio.bsky.social · 23/07/2025
When particles have orientation bias, the resulting maps are often streaked along the missing directions. In this case study, we cover why orientation bias produces anisotropic #cryoEM maps and how you may be able to recover from it! guide.cryosparc.com/processing-d...
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Christian Frezza @frezzalab.bsky.social · 09/05/2025
I'd like to share this short piece on a topic I hope you will find useful. It is the result of a personl journey and many discussions with friends and peers. Let me know your thoughts. network.febs.org/posts/the-pr...
network.febs.org
The Professional Self: The Enemy Inside
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Alexis Verger 🧬🧫🧪 @alexis-verger.cpesr.fr · 04/05/2025
Well, somebody had to do it @nucleosomepolice.bsky.social 😬 Did you know that the nucleosome inspires the Millennium Falcon design? #Maythe4thBeWithYou #MayThe4th #MayTheFourthBeWithYou
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Structura Biotechnology @structurabio.bsky.social · 29/04/2025
Grappling with poorly-resolved ligand binding sites in #cryoEM maps? Check out our new case study on a peptide ligand-bound GPCR showing how practical tips and features in #CryoSPARC v4.7 improve locally refined map quality and reveal clearer ligand density! guide.cryosparc.com/processing-d...
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