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Claudio Alfieri

@claudioalfieri.bsky.social
192 followers 427 following 5 posts
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Reposted by Claudio Alfieri
Suyang Zhang @suyangzhang.bsky.social · 25/09/2026
First PhD of the Zhang Lab @mrclmb.ac.uk! 🎓✨ Helen successfully defended her PhD thesis last week. So proud to have watched her grow as a researcher and of all she has achieved in her work on the coupling of transcription and splicing! Congratulations, Helen! 🎉
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Reposted by Claudio Alfieri
Structural Biology @actacrystd.iucr.org · 17/08/2026
Through extensive classification of a previously deposited cryoEM dataset, a previously unresolved ALC1–nucleosome complex characterized by a more open conformation of ALC1 was identified #DNADamageResponse #ChromatinRemodeling #ALC1 doi.org/10.1107/S205...
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Suyang Zhang @suyangzhang.bsky.social · 10/07/2025
Excited to share our latest work! We found transcription factor SPT6 and phosphorylated Pol II CTD help recruit U1 snRNP to elongating Pol II, allowing efficient co-transcriptional splicing. Glad to be featured in the Editors’ Highlights! www.nature.com/articles/s41... #splicing #cryoEM
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Suyang Zhang @suyangzhang.bsky.social · 03/02/2025
Ever wondered how Pol II speed is controlled during productive elongation? Our study reveals that the helicase RECQL5 triggers transcription braking, while the transcription-coupled DNA repair complex restores the elongation rate. #cryoEM #transcription www.biorxiv.org/content/10.1...
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Dominik Hrebik @dhrebik.bsky.social · 03/03/2025
I am very happy to announce that we solved the in-virus #cryoEM structure of the #HIV matrix protein. The structure helped us to resolve a long mystery in HIV biology. A🧵1/5 Read more in Nature: www.nature.com/articles/s41... 🧪
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cryoEM papers @cryoempapers.bsky.social · 11/06/2026
Atomic resolution cryo-EM at 200 keV pubmed.ncbi.nlm.nih.gov/42268577/ #cryoEM
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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 Claudio Alfieri
Journal of Cell Biology @jcb.org · 17/04/2026
Assembly and phospho-regulatory mechanisms of the budding yeast outer #kinetochore KMN complex. New study from Noah N. Turner (@noahnturner.bsky.social), David Barford and colleagues @mrclmb.ac.uk: rupress.org/jcb/article/... #CellDivision #StructuralBiology #kinetochores #centromeres #cryoEM
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Kelly Nguyen @kellythd-nguyen.bsky.social · 26/03/2026
Proud 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.com
Cryo-EM structure of yeast telomerase
YouTube video by MRC Laboratory of Molecular Biology
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The EMBO Journal @embojournal.org · 26/03/2026
Proper chromosome segregation requires microtubule end capture by outer kinetochore @vladimirvolkov.bsky.social et al show that oligomerizing interactions of Ndc80 & Ska complexes underlie their ability to stabilize microtubule ends against detachment & shortening link.springer.com/article/10.1...
link.springer.com
Microtubule end stabilisation by cooperative oligomers of Ska and Ndc80 complexes - The EMBO Journal
During mitosis, properly aligned chromosomes stabilise microtubule ends with the help of kinetochores to ensure timely segregation of chromosomes. Microtubule-binding components of the human outer kin...
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Reposted by Claudio Alfieri
Basil Greber @bjgreber.bsky.social · 27/03/2026
Great stuff - congratulations, Hongmiao!
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Basil Greber @bjgreber.bsky.social · 27/03/2026
Have a look at our latest results on #CDK regulation, just posted as a pre-print! This study was spearheaded by PhD student Amy McGeoch. Amy has determined the #cryoEM structure of the CDK11-cyclin L-SAP30B complex, an important regulator of #spliceosome activation. www.biorxiv.org/content/10.6...
Depictions of the structure of CDK11-cyclin L-SAP30BP. Four cryo-EM densities are shown at the top, two molecules models at the bottom. CDK11 is green, cyclin L is purple, and SAP30BP is yellow.
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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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Elodie Carmen Leroy @ecleroy.bsky.social · 19/03/2026
🚨 Preprint alert! We solved the structure of human NSUN2 bound to Asp tRNA, revealing how it installs m⁵C and recognizes RNAs #CryoEM #RNABiology A collab between Casañal & Gullerova labs, with @miclass.bsky.social and me working side by side as co-first authors 🔗 doi.org/10.64898/202... (0/7🧵)
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Florent Waltz @florentwaltz.bsky.social · 19/12/2025
Final version is out! Our large-scale cryo-ET dataset 🔬 of Chlamydomonas reinhardtii 🦠 is now published in @cp-molcell.bsky.social Huge collaborative effort! So glad to see the community already using it to develop new resources & tools. Check it out here: shorturl.at/z4i4c #CryoEM #CryoET
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cryoEM papers @cryoempapers.bsky.social · 11/12/2025
An integrated workflow for structural virology with a 100 keV electron microscope www.biorxiv.org/content/10.64898/2025.12.08.693081v1 #cryoEM
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Suyang Zhang @suyangzhang.bsky.social · 23/10/2025
Our lab @mrclmb.bsky.social in Cambridge is seeking a passionate PhD student to explore transcription-coupled splicing! Join our team for an exciting project to understand human gene regulation 🧬 Feel free to get in touch directly #PhD #cryoEM #biochemistry www2.mrc-lmb.cam.ac.uk/students/int...
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MRC Laboratory of Molecular Biology @mrclmb.ac.uk · 22/10/2025
Chris Russo and Anastasiia Gusach have developed a new method to prepare #cryoEM samples that avoids protein damage during freezing Read more: www2.mrc-lmb.cam.ac.uk/a-new-method... #LMBResearch
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The EMBO Journal @embojournal.org · 27/10/2025
Interactions with the nucleosome’s acidic patch and DNA entry/exit site give the chromosomal passenger complex CPC a non-catalytic role in stabilizing #centromeric chromatin #cryoEM and biochemical, cellular data by AA Jeyaprakash and coworkers www.embopress.org/doi/full/10....
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cryoEM papers @cryoempapers.bsky.social · 29/10/2025
`Mix-it-up': accessible time-resolved cryo-EM on the millisecond timescale pubmed.ncbi.nlm.nih.gov/41140236/ #cryoEM
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EMBL @embl.org · 29/10/2025
EMBL scientists have new detailed info about Asgard archaea DNA structures offering important clues to more complex cell evolution. With #cryoEM, scientists found both open and closed chomatin structures with a possible role in regulating chromatin. doi.org/10.1016/j.mo...
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cryoEM papers @cryoempapers.bsky.social · 31/10/2025
Structural dissection of αβ-tubulin heterodimer assembly and disassembly by human tubulin-specific chaperones pubmed.ncbi.nlm.nih.gov/41166473/ #cryoEM
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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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TJ McCorvie @allostericstate.bsky.social · 11/11/2025
I am excited to share our new preprint on our structural and biochemical analyses of human methionine synthase (MTR). This was the hard work of Douglas Ferreira who carried out this research as a significant part of his PhD. #CryoEM www.biorxiv.org/content/10.1...
biorxiv.org
Structural insights into cobalamin loading and reactivation of human methionine synthase
Human methionine synthase (MTR) is an essential enzyme of one carbon metabolism. Consisting of a catalytic N-half and a cobalamin binding C-half, MTR utilises this intricate organometallic cofactor in...
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Claudio Alfieri @claudioalfieri.bsky.social · 17/10/2025
Amazing work from my neighbour's lab! Many congrats to all the people involved! 👏👏👏👏
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Reposted by Claudio Alfieri
TJ McCorvie @allostericstate.bsky.social · 21/09/2025
Part of something that we have been working on for a while-A 3.1 Å map of a flexibly tethered 38 kDa domain. Hopefully preprinted soon along with a few other structures. #CryoEM
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Roger Castells @rcastellsg.bsky.social · 13/09/2025
This is super cool and great investigative work! Thanks Oli and co! #smallparticles #cryoEM
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Basil Greber @bjgreber.bsky.social · 15/08/2025
Just published: Our paper on high-throughput analysis of cyclin docking interactions, led by the group of Norman Davey @icr.ac.uk and with some small-complex-plus-peptide #cryoEM by @natalia-mg.bsky.social from my lab. Congratulations, everyone! www.nature.com/articles/s41...
nature.com
High-throughput investigation of cyclin docking interactions reveals the complexity of motif binding determinants - Nature Communications
Many protein–protein interactions depend on Short Linear Motifs (SLiMs). In this study, the authors use large-scale binding assays, deep mutational scanning, and structural analysis to map SLiMs recog...
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Svetlana Dodonova @dodonova-sveta.bsky.social · 26/05/2025
We’ve uncovered Asgard chromatin structures formed by a Hodarchaeal histone : closed hypernucleosome conserved in archaea and an open form resembling the H3-H4 eukaryotic octasome. Fantastic work by @harshranawat.bsky.social! www.biorxiv.org/content/10.1... #Chromatin #Asgard #Archaea #cryoEM
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Bussi Lab @bussilab.org · 16/05/2025
Our integrative approach using #MD and #cryoEM data to construct structural ensembles of #RNA just published on @natcomms.bsky.social doi.org/10.1038/s414... Lead by Elisa Posani, with @magistratolab.bsky.social @bonomimax.bsky.social @pjanos.bsky.social @navtejtoor.bsky.social and Daniel Haack 🎉
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Vikram Alva @vikramalva.bsky.social · 12/05/2025
Excited to share our new preprint on HLp—a bacterial histone from Leptospira perolatii that forms stable tetramers and wraps ~60 bp of DNA: "DNA Wrapping by a Tetrameric Bacterial Histone" www.biorxiv.org/content/10.1... @mpi-bio-fml.bsky.social
A snapshot of the HLp tetramer (purple) wrapping ~60 bp of DNA (green).
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Sebastian Glatt @sebastianglatt.bsky.social · 30/04/2025
We are very excited about our latest work, which just came out @embojournal.org – www.embopress.org/doi/full/10..... The work @MCB_UJ was driven by Anna Biela and Ting-Yu Lin 林亭妤 in collaboration with @jmbujnicki.bsky.social…a short🧵
embopress.org
Determining the effects of pseudouridine incorporation on human tRNAs | The EMBO Journal
imageimagetRNAs harbour a complex set of modifications which are important for their function. Here, single particle cryo-EM, biophysics, and computational analyses of the effects of pseudouridine inc...
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Jan Philipp Kreysing @jpkreysing.bsky.social · 11/04/2025
New preprint on 3D heterochromatin architecture in human cells! Great collab with @sergiocruzleon.bsky.social & @johannesbetz.bsky.social from @hummerlab.bsky.social, @marinalusic.bsky.social & the Turoňová lab. Many thanks to my supervisor @becklab.bsky.social. bioRxiv: tinyurl.com/3a74uanv 🧵👇
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Structura Biotechnology @structurabio.bsky.social · 09/04/2025
#CryoSPARC v4.7 is out! 🚀  Featuring a new automatic Micrograph Junk Detector that labels and rejects contaminants, new tools for curating subsets of particles, performance and stability fixes, and more! Full changelog: cryosparc.com/updates #cryoEM
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Lucas Farnung @lucas.farnunglab.com · 28/03/2025
🚨New paper🚨Our new study with the lab of Phil Cole uncovers how SIRT6 dynamically adapts structurally and enzymatically to target diverse histone acylations (e.g., H3K27ac) within nucleosomes. @jonmarkert.bsky.social doi.org/10.1016/j.jb... #Chromatin #SIRT6 #CryoEM
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Suyang Zhang @suyangzhang.bsky.social · 24/03/2025
Excited to share our new preprint on co-transcriptional splicing! U1 snRNP is recruited to RNA polymerase II through multiple interaction sites, with elongation factor SPT6 binding directly to the U1 snRNP protein. www.biorxiv.org/content/10.1... #cryoEM #transcription #splicing
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John Helmann @johnhelmann.bsky.social · 05/03/2025
How does MntR function as both repressor and activator with different Mn(II) sensitivity and cooperativity? Led by the remarkable Prof. Shivani Ahuju (Reed), our long-time collaborator Arthur Glasfeld, and Reed undergraduates! #MicroSky #ChemSky #cryoEM www.nature.com/articles/s41...
nature.com
Structural basis for transcription activation through cooperative recruitment of MntR - Nature Communications
MntR is a protein that can repress the expression of Mn2+ uptake transporters and activate the expression of efflux proteins. Here, the authors use cryo-EM and other biochemical approaches to establis...
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Pedro Beltrao @pedrobeltrao.bsky.social · 25/02/2025
Sad to know about the passing of Béla Novák. This review from Tyson, Chen and Novak was such a revelation for me as an introduction to control theory in biological systems. A classic that will remain relevant for many years to come. www.sciencedirect.com/science/arti...
sciencedirect.com
Sniffers, buzzers, toggles and blinkers: dynamics of regulatory and signaling pathways in the cell
The physiological responses of cells to external and internal stimuli are governed by genes and proteins interacting in complex networks whose dynamic…
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EMBL-EBI @ebi.embl.org · 17/02/2025
📢 We’re looking for a new Team Leader! @enasequence.bsky.social is recruiting a Team Leader to shape the strategy and direction for the ENA and Biosamples open data resources. Interested?👇
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Brian Liau @brianliau.bsky.social · 12/02/2025
Today in @nature.com we share our back-to-back stories with Ning Zheng’s lab revealing chemical-genetic convergence between a molecular glue degrader & E3 ligase cancer mutations. 1/5
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@tim_stasevich @tim-stasevich.bsky.social · 12/02/2025
Making intrabodies from antibodies just got easier! Learn how we made 𝟭𝟵 intrabodies to bind and light up peptides and histone modifications in live cells. And thanks to Academia, all sequences are freely available. (video credit: Yuko Sato @YukoSatoT2) (1/15) www.biorxiv.org/content/10.1...
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Tanmay Bharat @tbharat-lab.bsky.social · 06/02/2025
The mechanics of a continuous self-assembling surface-layer aids cell division in an archaeon Tight collaboration with @buzzbaum.bsky.social, Sulfolobus cryo-ET from @idocaspy.bsky.social www.biorxiv.org/content/10.1...
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Carter Lab @carter-lab.bsky.social · 07/02/2025
Today in #journalclub, we looked at the new study from Nguyen et al. showing how Cryo-EM captures early steps in dynein activation by LIS1. They identified a novel ‘Pre-Chi’ intermediate, shedding light on how LIS1 relieves dynein autoinhibition! www.biorxiv.org/content/10.1...
biorxiv.org
Cryo-EM captures early intermediate steps in dynein activation by LIS1
Cytoplasmic dynein-1 (dynein) is an essential molecular motor in eukaryotic cells. Dynein primarily exists in an autoinhibited “Phi” state and requires conformational changes to assemble with its cofa...
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Claudio Alfieri @claudioalfieri.bsky.social · 05/02/2025
At #EMBOinsitu and looking for a motivated postdoc joining an interdisciplinary project in my lab: jobs.icr.ac.uk/vacancies/11... the-alfieri-lab.co.uk #cryoem #cryotem
jobs.icr.ac.uk
Postdoctoral Training Fellow in Chelsea | The Institute of Cancer Research
View details and apply for this Postdoctoral Training Fellow vacancy in Chelsea . Salary: Dependent on relevant Postdoctoral experience. Future progression is based on annual performan...
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chrisvanhoorn.bsky.social @chrisvanhoorn.bsky.social · 08/12/2024
Our #CryoET paper on ciliary rootlet ultrastructure from mouse retina is now out in @elife.bsky.social! Have a peek with this video or dive deeper at bit.ly/3ZJzhgc. Big thanks to @carter-lab.bsky.social and #teamtomo. #CryoET #CryoEM #Cilia #Rootlet #Centriole #Research #Science
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Basil Greber @bjgreber.bsky.social · 06/12/2024
New pre-print! To support a CDK-cyclin docking motif discovery and characterisation project led by Norman Davey and colleagues, @natalia-mg.bsky.social in my lab determined the #cryoEM structures of three peptide-bound CDK2-cyclin A complexes. Check it out! www.biorxiv.org/content/10.1...
biorxiv.org
High-throughput discovery and deep characterization of cyclin-CDK docking motifs
Cyclin-CDKs are master regulators of cell division. In addition to directly activating the CDK, the cyclin subunit regulates CDK specificity by binding short peptide “docking” motifs in CDK substrates...
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Basil Greber @bjgreber.bsky.social · 03/12/2024
Thrilled to share that I have been selected as one of this year's new EMBO Young Investigators. I look forward to meeting many of the other Young Investigators in the coming years, and I am most grateful to the members of my laboratory at the ICR who made this possible. www.embo.org/press-releas...
embo.org
Twenty-seven scientists become EMBO Young Investigators – Press releases – EMBO
The group leaders join an international network of nearly 800 life scientists and receive financial support
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