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Aleksander Szczurek

@aleksszczurek.bsky.social
270 followers 288 following 24 posts

Researcher @UniofOxford in single molecule imaging of gene regulation at @RobKlose lab I paint: aleksanderszczurek.wixsite.com/ats-…

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Reposted by Aleksander Szczurek
Arnaud Krebs @arnaudkr.bsky.social · 12/08/2026
How many TFs to you need to open chromatin at enhancers? Very excited to see this one out! Check out the augmented version with combinatorial motif mutant libraries in Figure 5! Very proud of @guidobarzaghi.bsky.social @valentinabaderna.bsky.social @embl.org
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 15/07/2026
Our preprint is now out in @natgenet.nature.com ! doi.org/10.1038/s415... We measured Sox2 promoter bursting dynamics with the SCR enhancer positioned at different distances within a genomic locus devoid of confounding effects in mESC: Main findings in the 🧵 below:
doi.org
Enhancer control of promoter activity and variability via frequency modulation of clustered transcriptional bursts - Nature Genetics
Tünnermann et al. use live-cell imaging to study promoter activity under the control of an enhancer inserted at different genomic distances. RNA production from the promoter occurs in clusters of tran...
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Emilia Dimitrova @edimitrova.bsky.social · 24/06/2026
Best news on such a hot day! Congratulations @au-ho-yu.bsky.social and @robklose.bsky.social - an amazing achievement! Alan has done an amazing job and is currently working hard to address the reviewers' concerns! Comments came took 4 months to come back - reviewer 2 doesn't agree with g.e.d!
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Richard Sever @richardsever.bsky.social · 24/06/2026
"the first validated, large-scale framework for judging the quality of life science papers independently of venue, identity, and prestige...Blinded domain-expert professors sided with score three times more often than with journal rank" the-one-percent.qedscience.com 1/n
the-one-percent.qedscience.com
QED — The most compelling preprints of 2025
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Jess Kelley @jesskelley.bsky.social · 18/06/2026
In addition to being an excellent scientist, @aleksszczurek.bsky.social is an extremely talented watercolour artist. I've finally got this beautiful painting back from the framer and up on the wall in pride of place! The scene is from a photo I took on a rather changeable day in Glenmalure, Ireland.
Watercolour painting depicting an Irish mountain valley with a small river in the foreground and a path leading up into the hills. The clouds have just broken up to reveal a patch of blue sky and light up the sceneWide shot showing the framed painting hanging on a wall above a TV. Trailing houseplants sit on surrounding shelf
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Wendy Bickmore @wbickmor.bsky.social · 08/05/2026
Although cohesin-sensitive, long-range enhancer activation is equivalent in nature to proximal activation. Cooperativity can arise from different levels of activation inputs operating on a non-linear response function. @eliasfriman.bsky.social @uoe-igc.bsky.social www.biorxiv.org/content/10.6...
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UK Research and Innovation @ukri.org · 01/04/2026
We’re pleased to share that Professor Sir Leszek Borysiewicz has been named as the government’s preferred candidate for Chair of UKRI. Sir Leszek is expected to take up the role later this summer and will succeed the current UKRI Chair, Sir Andrew Mackenzie. More: www.ukri.org/news/sir-les...
ukri.org
Sir Leszek Borysiewicz named as preferred candidate for UKRI Chair
Science and Technology Secretary Liz Kendall has named Professor Sir Leszek Borysiewicz as the government’s preferred candidate for Chair of UKRI.
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Sasha Gusev @sashagusevposts.bsky.social · 01/04/2026
Monthly median Received to Accepted time (days) at Nature Genetics
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Oded Rechavi @odedrechavi.bsky.social · 30/03/2026
Do we grow wiser as we age? I spent 15+ years chasing glam journals, wasting time and energy (and frustrating my team and co-authors). I don’t want to wake up at 70 and realize my life went into convincing a few editors my work was trendy enough. Enough. I’ll try to be smarter.
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Aleksander Szczurek @aleksszczurek.bsky.social · 22/01/2026
Our man Alan speaking about his latest story! Make sure to join
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Alan Au @au-ho-yu.bsky.social · 11/12/2025
Using degron technology to systematically deplete all SET1/MLL complexes, we find that they synergise to deposit H3K4me3 at gene promoters. Using mass spectrometry (thanks to Inge de Krijger and Michiel Vermeulen), we also identify a novel SET1B isoform that contributes substantially to H3K4me3.
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Alan Au @au-ho-yu.bsky.social · 11/12/2025
Excited to share our new preprint from the Klose lab, where we investigate how SET1/MLL complexes shape H3K4me3 and regulate transcription in mouse ES cells. www.biorxiv.org/content/10.6...
biorxiv.org
SET1/MLL complexes control transcription independently of H3K4me3
Histone H3 lysine 4 trimethylation (H3K4me3) at gene promoters is thought to play a central role in gene transcription. H3K4 methylation is deposited by the SET1 (A/B) and MLL (1-4) multi-protein comp...
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Emilia Dimitrova @edimitrova.bsky.social · 11/12/2025
Also @au-ho-yu.bsky.social probably holds the world record for the most degron-tagged proteins in the same line. Guess how many!
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Rob Klose @robklose.bsky.social · 11/12/2025
An early Christmas present for those interested in chromatin and transcription! Fantastic work from @au-ho-yu.bsky.social and @aleksszczurek.bsky.social . Thanks to Inge and Michiel for their help. Please repost! www.biorxiv.org/content/10.6...
biorxiv.org
SET1/MLL complexes control transcription independently of H3K4me3
Histone H3 lysine 4 trimethylation (H3K4me3) at gene promoters is thought to play a central role in gene transcription. H3K4 methylation is deposited by the SET1 (A/B) and MLL (1-4) multi-protein comp...
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Margot Finn @eicathomefinn.bsky.social · 03/11/2025
ERC starter grant applications from US researchers nearly triple in 2025 compared to 2024 as Trump restricts funding. Good for "Choose Europe" initiatives, but dire for global and national science, given the limited volume of non-US funding available.
ft.com
Trump’s university backlash drives US researchers towards Europe
EU grant applications hit record in 2025 amid surge in interest from American academics
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Luke Lavis @rhodamine110.bsky.social · 27/10/2025
A new, nerdy paper. We figured out (some) of the rules underlying cell-permeability of probes and designed ligands that light up, grab, and move proteins around. Awesome @hhmijanelia.bsky.social x @uwmadison.bsky.social x @stjuderesearch.bsky.social collaboration! www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Umut Gerlevik @ugerl.bsky.social · 24/10/2025
🧬 New preprint! SNU-Seq maps nascent transcription at single-nucleotide resolution using 4sU labeling. Together with sf4sU-Seq, it shows how epigenetically primed chromatin rapidly activates transcription after IFN-γ. 📄 doi.org/10.1101/2021... #SNUSeq #RNAseq
doi.org
Single Nucleotide Resolution 4sU Sequencing (SNU-Seq) reveals the transcriptional responsiveness of an epigenetically primed human genome
Genomes are pervasively transcribed, leading to stable and unstable transcripts that influence 3-dimensional genome organisation and gene regulation. High sensitivity and nucleotide resolution are req...
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Steve West @xrnchew.bsky.social · 17/10/2025
I’m a fair-weather poster on here to say the least. However, I'm pleased to present our latest paper. A great effort from all authors and an interesting insight into transcriptional regulation (we think!). www.cell.com/molecular-ce...
cell.com
Sequential verification of transcription by Integrator and Restrictor
Estell and Łazowski et al. show that Integrator and Restrictor form distinct pathways for early attenuation of RNA polymerase II: Integrator acts at the promoter-proximal pause site, whereas Restricto...
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Oded Rechavi @odedrechavi.bsky.social · 15/10/2025
BIG ANNOUNCEMENT📣: I haven’t been this excited to be part of something new in 15 years… Thrilled to reveal the passion project I’ve been working on for the past year and a half!🙀🥳 (thread 👇)
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Aleksander Szczurek @aleksszczurek.bsky.social · 08/10/2025
If you are a computational biologist come, apply and join Howard & Klose lab in a joint Norwich-Oxford collaboration on chromatin dynamics!
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Emilia Dimitrova @edimitrova.bsky.social · 06/10/2025
If you are a computational biologist interested in how chromatin states are established and maintained to regulate transcription, this is the dream job for you! This will be in close collaboration with the Klose lab in Oxford and we have a lot of cool projects you can get involved in. Apply!
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Benoit Bruneau @benoitbruneau.bsky.social · 05/10/2025
Happy Pluripotency Day! #Oct4
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Fena Ochs @fenaochs.bsky.social · 10/09/2025
Delighted to share our lab's first preprint identifying DDIAS as a mitotic DNA repair protein. Great collaboration with the @andrewblackford.bsky.social, @tcr-miller.bsky.social and @profstewartlab.bsky.social labs, and many more. Read the paper here: www.biorxiv.org/content/10.1...
biorxiv.org
DDIAS is a single-stranded DNA-binding effector of the TOPBP1-CIP2A complex in mitosis
DNA double-strand breaks and unresolved DNA replication intermediates are particularly dangerous during mitosis. Paradoxically, cells inactivate canonical DNA repair mechanisms during chromosome segre...
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Emilia Dimitrova @edimitrova.bsky.social · 09/09/2025
Double celebration on our floor @oxfordbiochemistry.bsky.social with @guifengwei.bsky.social from the Brockdorff lab and Dounia and Sherry from Fisher lab having their papers published today! And I hear there is more to come... www.nature.com/articles/s41... www.nature.com/articles/s41...
nature.com
m6A and the NEXT complex direct Xist RNA turnover and X-inactivation dynamics - Nature Structural & Molecular Biology
Wei et al. show that the primary function of m6A on the nuclear long noncoding RNA Xist, a master regulator of X inactivation, is to promote RNA degradation. Xist turnover is mediated by the nuclear e...
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Magda Kopczyńska @mgkopczynska.bsky.social · 27/12/2024
Do you know where transcription of a gene actually stops? Hint: it is not the annotated gene end. In our new paper in Nucleic Acids Research we argue that phosphorylation on threonine 4 of RNA Pol II CTD is a marker of transcription termination in animals... 🧵 academic.oup.com/nar/advance-...
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László Tora @tlaszlo.bsky.social · 12/08/2025
Check out our new collaborative preprint about Affinity-ligand purification of native human low-abundance multi-protein complexes doi.org/10.1101/2025...
doi.org
Affinity-ligand purification of native human low-abundance multi-protein complexes for structure determination
In human cells, large multi-protein transcription co-activators, such as chromatin remodelers or histone acetyltransferases, play critical roles in gene-expression regulation and are often implicated ...
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Pradeepa Madapura @pradeepmadapura.bsky.social · 26/06/2025
Registration for Transcription and Chromatin UK is OPEN! Taking place from September 17 to 19, 2025, this conference will showcase cutting-edge research and is a ‘must-attend’ event for the UK transcription and chromatin community & both at home and abroad. Pl register ow.ly/7QQb50W9Alo & share
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Guifeng Wei @guifengwei.bsky.social · 26/06/2025
Fresh preprint by @flavia-con.bsky.social from our lab uncovers how SMCHD1 finds & binds chromatin using live-cell single-molecule imaging🔬 She reveals how SMCHD1 dynamically engages chromatin, including the inactive X chromosome, to maintain gene silencing. www.biorxiv.org/content/10.1...
biorxiv.org
Selective interaction of the protein SMCHD1 with specific chromatin regions is governed by the loading factor LRIF1 and SMCHD1 ATPase activity
The chromosomal protein SMCHD1 is a GHKL ATPase that plays important roles in epigenetic silencing, including on the inactive X chromosome (Xi) and at the D4Z4 macrosatellite linked to regulation of D...
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Aleksander Szczurek @aleksszczurek.bsky.social · 18/06/2025
Check out new paper on single-molecule live-cell imaging of SMCHD1 binding to an inactive X chromosome by Flavia Constantinescu from Neil Brockdorff's team! :)
biorxiv.org
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Miguel Ramalho-Santos @mrsantos.bsky.social · 06/05/2025
Also noted: The first two blastomeres contribute unequally to the human embryo. www.cell.com/cell/fulltex...
cell.com
The first two blastomeres contribute unequally to the human embryo
Labeling and live imaging of human embryos reveal that the majority of the future body originates, mostly, from one of the 2-cell stage blastomeres. Descendants of the first 2-cell stage blastomere to...
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Lothar Schermelleh @lschermelleh.bsky.social · 16/04/2025
All you nuclear biologists out there: Here is a cautionary tale not to be fooled by peripheral organelle staining. It might just be that your antibody got trapped because it is "too good".
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jihwanjameslee.bsky.social @jihwanjameslee.bsky.social · 09/04/2025
🧵 1/6 Just dropped in @naturecomms.bsky.social We’ve engineered the most photostable yellow fluorescent proteins (YFPs) to date—mGold2s and mGold2t—with up to 25× greater photostability than mVenus and mCitrine, without compromising brightness. 👇 🔗 www.nature.com/articles/s41...
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Connor Rogerson @doctorconnor.bsky.social · 01/04/2025
Transcription and Chromatin UK is back for 2025 in Manchester! Make sure you register your interest to be kept in the loop about registration and abstract submission. www.biochemistry.org/events-and-t...
biochemistry.org
Transcription and Chromatin UK 2025
Transcription and Chromatin UK brings together the rich transcription and epigenetics community in the UK and leading experts from abroad, and will feature all aspects of transcription and chromatin r...
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Aleksander Szczurek @aleksszczurek.bsky.social · 25/03/2025
Cool perspective on cohesin as a "disruptor" by Adrian Bird: www.cell.com/molecular-ce...
cell.com
Cohesin as an essential disruptor of chromosome organization
Chromosomes are long strings of DNA carrying multiple genes. A chromosomal factor called cohesin creates loops of DNA proposed to be functional units of the genome. By contrast, it is proposed here th...
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Ellenberg Lab @ellenberglab.bsky.social · 24/03/2025
Our new findings on how chromosomes get ready for cell division are now published in @cellpress.bsky.social! Congratulations, Kai, @andibrunner.bsky.social and everyone else involved! 🤩 www.sciencedirect.com/science/arti...
sciencedirect.com
Nanoscale DNA tracing reveals the self-organization mechanism of mitotic chromosomes
How genomic DNA is folded during cell division to form the characteristic rod-shaped mitotic chromosomes essential for faithful genome inheritance is …
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Hannah Long @hannahlong.bsky.social · 20/03/2025
📣 We are advertising for a postdoc to join our team at the University of Edinburgh! Our lab studies gene regulatory mechanisms in development, and how genetic changes may impact these processes to alter development and shape human craniofacial form and function 🧬🧪
elxw.fa.em3.oraclecloud.com
Postdoctoral Researcher
Our research is focused on understanding how genetic changes in the non-coding genome can impact gene regulatory mechanisms, alter developmental processes and ultimately affect human craniofacial shap...
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Anja Groth @groth-anja.bsky.social · 15/03/2025
Very interesting finding!
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Oded Rechavi @odedrechavi.bsky.social · 09/03/2025
The archetype of the scientist who sacrifices everything might’ve been romantic 50 years ago when there weren’t alternative high paying jobs. If we won’t make science FUN, reduce bureaucracy, and make it easier to secure funding and publish, few will stay in academia.
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Aleksander Szczurek @aleksszczurek.bsky.social · 24/02/2025
I know everyone's busy with all the political turmoil but just wanted to remind everyone that Russia invaded Ukraine exactly 3 years ago. This conflict lead to 400k and 800k killed/wounded Ukrainians and Russians (wiki). We must continue to aid UA to end this conflict on their terms more than ever!
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Anne Applebaum @anneapplebaum.wsocial.eu · 20/02/2025
This is a new level of madness. I don't know how it can be stopped
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Molecular Cell @cp-molcell.bsky.social · 19/02/2025
Online Now: Identification of molecular determinants of gene-specific bursting patterns by high-throughput imaging screens
dlvr.it
Identification of molecular determinants of gene-specific bursting patterns by high-throughput imaging screens
Sood et al. used high-throughput screening to identify regulators of gene bursting and find both gene- and cell-type-specific effectors. Acetylation alters burst size in a gene-specific manner but is independent of promoter acetylation. Rather,…
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Oxford Biochemistry @oxfordbiochemistry.bsky.social · 10/02/2025
Research @oxfordbiochemistry.bsky.social @ox.ac.uk supported by the Wellcome Trust (UK) and NIH (USA) reveals essential new player in the process of deciding whether genes should be made or not. Great work @jesskelley.bsky.social @robklose.bsky.social @edimitrova.bsky.social 👏 bit.ly/202502-klose
bit.ly
Unlocking the Pause: A new player in gene transcription
A new work from the Klose lab published in the journal Molecular Cell
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Miguel V. Almeida @migueldvalmeida.bsky.social · 29/01/2025
Our first deep dive into TEs and piRNAs in African cichlids is finally published! genomebiology.biomedcentral.com/articles/10.... rdcu.be/d69S5 Our main findings below 🧵 #TEsky
genomebiology.biomedcentral.com
Dynamic co-evolution of transposable elements and the piRNA pathway in African cichlid fishes - Genome Biology
Background East African cichlid fishes have diversified in an explosive fashion, but the (epi)genetic basis of the phenotypic diversity of these fishes remains largely unknown. Although transposable e...
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Duncan Sproul @sproullab.bsky.social · 30/01/2025
Want to come and set up a group at our wonderful institute?
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Max-Planck-Gesellschaft @maxplanck.de · 23/01/2025
More than 40 percent of #postdocs leave academia. Those who landed a coveted faculty position were more likely to have had a highly cited paper, changed their research topic between their #PhD and postdoc, or moved abroad after receiving their doctorate. www.pnas.org/doi/10.1073/... @pnas.org
nature.com
More than 40% of postdocs leave academia, study reveals
Publishing highly cited papers helps postdoctoral researchers to land a faculty job.
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bioRxiv Biochemistry @biorxiv-biochem.bsky.social · 12/12/2024
Mechanisms of synergistic Mediator recruitment in RNA polymerase II transcription activation revealed by single-molecule fluorescence www.biorxiv.org/content/10.1101/202…
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Aleksander Szczurek @aleksszczurek.bsky.social · 12/12/2024
Have a look at important thread by Emilia's on why you should approach with caution non-callibrated genomics data ;)
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Johannes Hohlbein @hohlbeinlab.bsky.social · 13/11/2024
First attempt in a (loosely defined) Single-Molecule Biophysics starter pack. Please share and (self-) nominate. go.bsky.app/CteFZM5
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Jess Kelley @jesskelley.bsky.social · 26/11/2024
Very excited that our paper describing a critical role for the PNUTS-PP1 phosphatase complex in transcription pause release is up online! This was a massive team effort with @edimitrova.bsky.social and the rest of the @robklose.bsky.social lab www.cell.com/molecular-ce... A short thread: (1/8)
cell.com
The PNUTS phosphatase complex controls transcription pause release
Kelley et al. discover that the PNUTS phosphatase complex plays an essential role in gene transcription by controlling RNA polymerase II pause release. PNUTS achieves this through its TND, which recog...
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