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Sergei Pirogov

@biologsp.bsky.social
416 followers 369 following 27 posts

PhD student | Mannervik lab | Stockholm University | developmental epigenetics and chromatin of Drosophila| histone acetylation and methylation

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Sergei Pirogov @biologsp.bsky.social · 16/09/2026
Now I am officially a doctor! Huge thanks to Mattias Mannervik @mannerviklab.bsky.social for supervising me and giving me the chance to work on so interesting projects throughout my PhD!
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Nikos Konstantinides @nkonst4.bsky.social · 27/08/2026
Very excited about this one! I’ll be co-organising the EMBO Workshop “Comparative (neuro)science in insects” with @tomtom-auer.bsky.social, @megyounger.bsky.social and Yun Ding, 13–16 April 2027 in Engelberg, Switzerland. #EMBOneuroInsects
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Sergei Pirogov @biologsp.bsky.social · 02/06/2026
It was a fantastic exploration during my PhD, a new method, with new struggles. I had an amazing team of Artem and Aleksander to deal with all of them. Also my first experience of project supervision, it was hard but extremely cool. And thanks to @mardzix.bsky.social and Pepe for all the support!
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Mannervik Lab @mannerviklab.bsky.social · 02/06/2026
Have you ever wondered how chromatin states shape developmental trajectories? In our preprint, we address this question using single-cell nanoCUT&Tag, a method developed by Marek Bartosovic @mardzix.bsky.social, which simultaneously profiles active H3K27ac and repressive H3K27me3 in the same nucleus
biorxiv.org
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pavelkrav.bsky.social @pavelkrav.bsky.social · 24/05/2026
(1/14) Excited to share our new preprint: ArChIPelago — classic ML on top of multiple PWMs improves genomic TFBS prediction. shorturl.at/jnxDA Builds on our MEX paper (Vorontsov et al., 2025). w/ @pensarata.bsky.social @vorontsovie.bsky.social @sevamakeev.bsky.social @halfacrocodile.bsky.social
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Sergei Pirogov @biologsp.bsky.social · 07/04/2026
Fascinating work on enigmatic octopuses with my wife’s @tatiana-atpase.bsky.social MD simulations! Huge congrats to the lab, where she makes her PhD @eriklindahl.bsky.social, and the collaborators lead the project @nbellono.bsky.social!
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Science Magazine @science.org · 02/04/2026
Male octopuses use a specialized arm that acts as both a sensory and reproductive organ to navigate the female’s mantle, locate oviducts, and transfer sperm. These findings reveal how sensory systems shape reproductive behavior and drive speciation. Learn more in Science: scim.ag/4dYMtFq
Animals rely on sensory cues to choose mates before reproduction. Male octopuses use a specialized arm that acts as both a sensory and reproductive organ to navigate the female’s mantle, locate oviducts, and transfer sperm. These findings reveal how sensory systems shape reproductive behavior and drive speciation. This image shows courtship during mating.
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Mark Peifer (He, him) @peiferlabunc.bsky.social · 06/04/2026
If you know a graduating undergraduate looking for the chance to spend 1-2 years in a lab before graduate school, we're hiring! Our lab explores morphogenesis, defining how the cell adhesion & cytoskeletal machinery work together to allow cells to change shape & move tarheels.live/peiferlab/ 1/n RT
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The Interactive Fly @interactivefly.bsky.social · 21/01/2026
Evdokimova, A. A., Kolesnikova, T. D., Mazina, M. Y., ...., Vorobyeva, N. E. (2025). Transcriptional induction by ecdysone in Drosophila salivary glands involves an increase in chromatin accessibility and acetylation. Nucleic Acids Res, 53(7) pmc.ncbi.nlm.nih.gov/articles/PMC...
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Nikos Konstantinides @nkonst4.bsky.social · 10/01/2026
I am very happy (and a bit scared) to present to you what we have been working on over the last 4 years. This manuscript is exactly what I dreamt of when I started the lab and I could not be happier and prouder of the outcome!
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Karsten Rippe @karsten-rippe.bsky.social · 24/12/2025
1/ 🎄 We got our Christmas present today: "Two distinct chromatin modules regulate proinflammatory gene expression" is now published @natcellbio.nature.com doi.org/10.1038/s415.... Our study introduces a scATAC-seq-based framework for genome-wide analysis of gene regulation features.
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Arnau Sebé-Pedrós @arnausebe.bsky.social · 22/12/2025
Excited to share the final version of our study on Nematostella cell type regulatory programs. Part of our @erc.europa.eu StG project, this was a challenging 5-year effort extraodinarily led by @aelek.bsky.social and @martaig.bsky.social. www.nature.com/articles/s41...
nature.com
Decoding cnidarian cell type gene regulation - Nature Ecology & Evolution
This study reconstructs the gene regulatory networks that define cell types in the sea anemone Nematostella vectensis, providing a valuable resource for comparative regulatory genomics and the evoluti...
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Ulrich Hohmann @hohmannulrich.bsky.social · 12/10/2025
Thrilled to share that I’ll be joining @imbmainz.bsky.social in February 2026 to start my own group! We will explore new mechanisms in eukaryotic gene expression, leveraging ‘evolutionary play’ to uncover how regulation, repurposing, and hijacking shape RNA biology. PhD positions available!
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Artem Ilin @adc34.bsky.social · 21/09/2025
Kicked off a series on #Drosophila TE discovery and naming. The first post covers elements that predate the term "mobile element", and more. artemilin.dev/posts/te_nam...
artemilin.dev
Drosophila TE name origins, Part 1 – Postdoc Postpunk
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Jeroen van den Berg @jervdberg.bsky.social · 16/05/2025
🧬Postdoc position alert! 🚨 We're hiring a postoc in Computational Modeling of Epigenetic Inheritance at the Hubrecht Institute (Alexander van Oudenaarden, Utrecht 🇳🇱) & Danish Cancer Institute (Anja Groth, Copenhagen 🇩🇰). Come work in our collaberative team of top scientists shorturl.at/avBBy
shorturl.at
Postdoctoral Researcher - Computational modeling of Epigenetic Inheritance - 38 hours p/w - Hubrecht Institute
About the Project Faithful inheritance of the epigenome in proliferating cells critically underpins human development and health. While DNA replication fidelity and DNA mutation rates are well underst...
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Arnau Sebé-Pedrós @arnausebe.bsky.social · 15/07/2025
We are looking for a student to continue our work on chromatin evolution: www.nature.com/articles/s41... www.biorxiv.org/content/10.1... The project with @seanamontgomery.bsky.social will focus on chromatin state readers across eukaryotes. More info: recruitment.crg.eu/content/jobs...
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Mark A. Hanson @hansonmark.bsky.social · 10/07/2025
The "reproducibility crisis" in science constantly makes headlines. Repro efforts are often limited. What if you could assess reproducibility of an entire field? That's what @brunolemaitre.bsky.social et al. have done. Fly immunity is highly replicable & offers lessons for #metascience A 🧵 1/n
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Artem Ilin @adc34.bsky.social · 05/07/2025
To be or not to be 🤴💀: read how hamlet orchestrates the assembly of adult male reproductive system in #Drosophila in a new paper from our colleagues! Led by Huazhen Wang, a PhD student in Qi Dai group, the study explores how this protein mediates the fusion of testis and supportive gonadal tissue
doi.org
Drosophila hamlet mediates epithelial tissue assembly of the reproductive system
Hamlet regulates heterotypic epithelial fusion by controlling spatial and temporal expression of known and novel epithelial regulators like Wnt and Tl pathway components, a mechanism potentially conse...
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Shelby Blythe @shelbyflies.bsky.social · 03/07/2025
Happy to announce a new preprint from my lab looking in to the establishment of polycomb domains in early fly development and contributions from pioneer factors Zelda and GAGA-factor.
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ASM @asm.org · 16/06/2025
How did life begin & why does it matter? A new ASM report, supported by the Gordon and Betty Moore Foundation, explores the origins of microbial life & how understanding it can help tackle some of humanity’s biggest questions around climate, biotech & more. Press release➡️ asm.org/press-releas...
Report cover page
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Axel Visel @axelvisel.bsky.social · 18/06/2025
Textbooks: “Enhancers are just a bunch of TFBSs” But how do they REALLY work? New paper with many contributors here @berkeleylab.lbl.gov, @anshulkundaje.bsky.social, @anusri.bsky.social A 🧵 (1/n) Free access link: rdcu.be/erD22
A meme-style comic panel with three parts. Left: A stylized enhancer with a mutation, surrounded by colored blocks representing functional motifs, a neural network diagram, chromatin accessibility signal traces, and a sequence motif. Two cartoon mouse embryos below show different LacZ reporter activity patterns. Top right: A hand hovers anxiously between two red buttons labeled “Experiments” and “AI,” with the caption “HOW DO ENHANCERS REALLY WORK?” Bottom right: A sweating superhero wipes his forehead, looking stressed about the difficult choice.
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Sergei Pirogov @biologsp.bsky.social · 18/06/2025
The amazing projects wait for curious minds! From fly genetics to transcriptional kinetics, from whole-embryo single-cell atlases to the charming chromatin microscopy! Welcoming at @stockholm-uni.bsky.social #epigenetics #chromatin #DevBio
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FlyBase @flybase.bsky.social · 03/06/2025
We currently have a call for support that has gone out to European labs, to support FlyBase-UK. We are asking our colleagues from labs in the US and other countries to wait for a similar call to them that will go out in the near future, to support the US sites. We thank you for your patience.
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Sergei Pirogov @biologsp.bsky.social · 30/05/2025
Very interesting! I liked James's comment "We should probably think of decision making as a dynamical process rather than an event. And relate to this to dev bio concepts such as competence, specification and commitment." I wonder how it would look like if applied to scATAC/scCUT&Tag data. Fuzzier?
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Sergei Pirogov @biologsp.bsky.social · 30/05/2025
Excited to share our new paper in @cp-molcell.bsky.social Molecular Cell: "Catalytic-dependent and independent functions of the histone acetyltransferase CBP promote pioneer-factor-mediated zygotic genome activation" — the big part of my PhD! www.cell.com/molecular-ce...
cell.com
Catalytic-dependent and independent functions of the histone acetyltransferase CBP promote pioneer-factor-mediated zygotic genome activation
Marsh, Pirogov, et al. use the early Drosophila embryo to demonstrate that the conserved histone acetyltransferase CBP is required for pioneer-factor-mediated transcriptional activation of the zygotic...
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Sergei Pirogov @biologsp.bsky.social · 16/05/2025
The superb conference in EMBL Epigenetics&Chromatin is over. Fantastic talks, a lot of incredible research in the poster section. I was glad to present two of my PhD projects: catalytic and non-catalytic function of CBP/p300 in development, and single-cell epigenetic landscapes of Drosophila embryo.
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SCENTINEL Twinning HE @scentinel.bsky.social · 12/05/2025
Attending the EMBL conference on Chromatin and epigenetics www.embl.org/about/info/c... ?? Check out posters 184 and 185 by SCENTINEL partners Mattias Mannervik and Sergei Pirogov, cbp/p300 unexpected function! Just accepted! doi.org/10.1101/2024...
doi.org
Catalytic-dependent and independent functions of the histone acetyltransferase CBP promote pioneer factor-mediated zygotic genome activation
Immediately after fertilization the genome is transcriptionally quiescent. Maternally encoded pioneer transcription factors reprogram the chromatin state and facilitate the transcription of the zygoti...
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Iana V. Kim @ianakim.bsky.social · 07/05/2025
I’m very excited to share our work on the early evolution of animal regulatory genome architecture - the main project of my postdoc, carried out across two wonderful and inspirational labs of @arnausebe.bsky.social and @mamartirenom.bsky.social. www.nature.com/articles/s41...
nature.com
Chromatin loops are an ancestral hallmark of the animal regulatory genome - Nature
The physical organization of the genome in non-bilaterian animals and their closest unicellular relatives is characterized; comparative analysis shows chromatin looping is a conserved feature of ...
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Mel Eckersley-Maslin @meleckmas.bsky.social · 28/04/2025
Read the paper here! www.biorxiv.org/content/10.1... Congrats to Janith and the rest of the lab @petermaccc.bsky.social, and thanks to collaborators Shabih Shakeel @wehi-research.bsky.social, @benparkerlab.bsky.social and @burrlab.bsky.social, and ongoing support from @snowmedical.bsky.social (6/6)
biorxiv.org
Embryonic stem cell factors DPPA2/4 facilitate a unique chromatin state in non-small cell lung cancer
Embryonic regulators are often re-expressed in cancers, however the functional and molecular significance of this is not always understood. The epigenetic priming factors Developmental Pluripotency As...
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Marek Bartosovic @mardzix.bsky.social · 21/04/2025
Last day to apply to a PhD position in my lab - comparative epigenomic project focusing on development nad evolution of the human brain. Apply below 👇
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MC Gambetta @mcgambetta.bsky.social · 18/04/2025
Our recent paper reports extremely long-range (up to 5.1 Mb 😲) regulation of certain genes in fly neurons and provides new insights into how they form (see short thread below 👇). genesdev.cshlp.org/gca?gca=gene...
genesdev.cshlp.org
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Apoorva Baluapuri @baluapuri.bsky.social · 14/04/2025
Thrilled to see my postdoc work at Adelman Lab @hms-bcmp.bsky.social on Integrator(INT) now out @cp-cell.bsky.social. We found that INT deficiency allows immature+unlicensed RNAPII to precociously enter genes. This immature RNAPII can transcribe short genes but terminates prematurely in long genes:
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Anton Goloborodko @golobor.bsky.social · 11/04/2025
Earnshaw, Goloborodko, Dekker & Mirny labs are excited to present our latest work, "Rules of engagement for condensins and cohesins guide mitotic chromosome formation" - now accepted!! www.science.org/doi/10.1126/... A short clip describing the key results: www.youtube.com/watch?v=pmvO...
youtube.com
Rules of Engagement
YouTube video by Johan Gibcus
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Arnaud Krebs @arnaudkr.bsky.social · 02/04/2025
The importance of moving away from bulk! Occupancy of Pol II at promoters is dramatically different between fly and mouse cells! When looking single molecule! Proud of the team! @kasitc.bsky.social @molinalab.bsky.social doi.org/10.1038/s443...
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Emily Goldberg @dremilygoldberg.bsky.social · 26/03/2025
I could not be more excited to have our lab's first story online where we report our discovery that HDACs ~reverse~ their activity to ADD acyl groups to lysine! We found this for our favorite ketone body, BHB, but this pathway controls other lysine modifications too!🧵 www.nature.com/articles/s41...
nature.com
Reversible histone deacetylase activity catalyzes lysine acylation - Nature Chemical Biology
Tsusaka et al. discover that histone deacetylases, which are well known to remove protein modifications, such as lysine acetylation and β-hydroxybutyrylation, can also reverse their chemical activity ...
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Mark Chadbourn @chadbourn.bsky.social · 27/03/2025
Kseniia Petrova, a Russian scientist at Harvard Medical School, was detained at Logan Airport after returning from France and sent to an ICE detention in Louisiana, The Insider reports. A big critic of Putin and the war in Ukraine, she may now be deported to Russia.
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Evgeny Kvon @evgenykvon.bsky.social · 26/03/2025
So, is it compaction or decompaction? Here is a notable alternative hypothesis: "Our data suggest that the process of..loop extrusion per se is not required for enhancer function..Rather, it is the chromatin compaction brought about by loop extrusion that may be the important factor to consider."
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Sean Montgomery @seanamontgomery.bsky.social · 19/03/2025
Excited to share this story from the “Chromatin Dream Team” in the @arnausebe.bsky.social lab on chromatin evo across eukaryotes! 12 histone mark profiles from 12 species, including rhizarians, discobans, and cryptomonads. Read on to see what we found! www.biorxiv.org/content/10.1... 1/n
biorxiv.org
Diversity and evolution of chromatin regulatory states across eukaryotes
Histone post-translational modifications (hPTMs) are key regulators of chromatin states, influencing gene expression, epigenetic memory, and transposable element repression across eukaryotic genomes. ...
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Maya Voichek @mayavoichek.bsky.social · 17/03/2025
1/ Transposable elements are often called "jumping genes" because they mobilize within genomes. 🧬 But did you know they can also jump 𝘣𝘦𝘵𝘸𝘦𝘦𝘯 cells? 🤯 Our new study reveals how retrotransposons invade the germline directly from somatic cells. www.biorxiv.org/content/10.1... A short thread 🧵👇
Drosophila follicle showing retrotransposons (pink & yellow) expressed in somatic cells infecting the oocyte
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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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Chen Davidovich @davidovichlab.bsky.social · 15/03/2025
1/ H3K27me3 mimicry has repeatedly emerged through evolution, but what's the physiological relevance? We show that JARID2 and PALI1 mimic H3K27me3 to antagonise PRC2 in vivo and restrict the spread of Polycomb domains. 🧵 www.biorxiv.org/content/10.1...
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Rada-Iglesias Lab @radaiglesiaslab.bsky.social · 31/01/2025
Together with @smandrup.bsky.social and Minna Kaikkonen we are happy to announce the 3rd Edition of the EMBO Workshop on #Enhancers and #Enhanceropathies. This time we will meet during the beautiful Danish summer (June 16-21). Book the dates and register soon!!! meetings.embo.org/event/25-enh...
meetings.embo.org
Enhancer Mechanics and Enhanceropathies
Join us for the highly anticipated third EMBO workshop on Enhancer Mechanics and Enhanceropathies! Building on the success of our previous meetings in Santander (2021) and Marseilles (2023), this eve…
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The Groth lab @grothlab.bsky.social · 19/02/2025
𝐇𝐨𝐰 𝐝𝐨 𝐜𝐞𝐥𝐥𝐬 𝐫𝐞𝐦𝐞𝐦𝐛𝐞𝐫 𝐰𝐡𝐨 𝐭𝐡𝐞𝐲 𝐚𝐫𝐞 𝐚𝐟𝐭𝐞𝐫 𝐃𝐍𝐀 𝐫𝐞𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧? Our new study “Disabling leading and lagging strand histone transmission results in parental histones loss and reduced cell plasticity and viability” is out in 𝘚𝘤𝘪𝘦𝘯𝘤𝘦 𝘈𝘥𝘷𝘢𝘯𝘤𝘦𝘴. Led by @lleonie.bsky.social @biranalva.bsky.social 🧵 More below👇
tinyurl.com
Disabling leading and lagging strand histone transmission results in parental histones loss and reduced cell plasticity and viability
Losing parental histones during DNA replication fork passage challenges differentiation competence and cell viability.
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Jackson Hoffman @jxhoffman.bsky.social · 12/02/2025
Unpause! I'm super happy to now be able to share the published version of our paper at Science Advances showing that: 1) active histone mods occur independently of transcription 2) transcription coordinates histone deacetylation at active promoters www.science.org/doi/10.1126/...
science.org
RNA polymerase II coordinates histone deacetylation at active promoters
Transcription initiation limits histone acetylation and H2AZ incorporation at promoters.
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Karsten Rippe @karsten-rippe.bsky.social · 13/12/2024
🧬 1/ Heterochromatin protein 1 (HP1) still surprises us after all these years: It simply sticks to chromatin when pericentric heterochromatin domains – the chromocenters – are activated in mouse fibroblasts and acts as a local rather than global repressor. New preprint: doi.org/10.1101/2024...
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Mike Lee @theleelab.bsky.social · 13/12/2024
It's challenging to uncouple Pol II expression and Pol II activity (Pol II activity creates Pol II expression, & vice versa) but we managed! We did many things, but the most notable is that we suppressed lethality caused by loss of Pol II by giving cells a non-functional form of Pol II! (4/n)
Figure showing that a transcriptionally incompetent version of Rbp1 (missing the entire c-terminal domain) suppresses the lethality caused by Pol II degradation.
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Andrea Bernardini @bernardini-andrea.bsky.social · 09/12/2024
We wrote an opinion article inspired by the recent exciting reports on the sequence determinants of TSS selection + old observations on TFs activation domains. More posts on this soon! Q-rich activation domains: flexible ‘rulers’ for transcription start site selection? www.cell.com/trends/genet...
cell.com
Q-rich activation domains: flexible ‘rulers’ for transcription start site selection?
Recent findings broadened the function of RNA polymerase II (Pol II) proximal promoter motifs from quantitative regulators of transcription to important determinants of transcription start site (TSS) position. These motifs are recognized by transcription factors (TFs) that we propose to term ‘ruler’ TFs (rTFs), such as NRF1, NF-Y, YY1, ZNF143, BANP, and members of the SP, ETS, and CRE families, sharing as a common feature a glutamine-rich (Q-rich) effector domain also enriched in valine, isoleucine, and threonine (QVIT-rich). We propose that rTFs guide TSS location by constraining the position of the pre-initiation complex (PIC) during its promoter recognition phase through a specialized, and still enigmatic, class of activation domains.
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Aurora Ruiz-Herrera @aruizherrera.bsky.social · 28/11/2024
🔖New paper from the lab! 'Evolution of 3D Chromatin Folding' | Annual Reviews - go.shr.lc/3B60kZF
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Kyogo Kawaguchi @kyogok.bsky.social · 27/11/2024
And our new preprint! "Gene-scale in vitro reconstitution reveals histone acetylation directly controls chromatin architecture", biorxiv (2024). Led by Yohsuke T Fukai, in collaboration with Kurumizaka lab (U Tokyo) and Umehara lab (RIKEN BDR). www.biorxiv.org/content/10.1...
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Christian Nefzger @nefzgerlab.bsky.social · 18/11/2024
Our recent study in Cell Metabolism provides compelling evidence that chromatin accessibility and transcription factor network remodeling in aging reflect the predictable degrading effects of a mechanism initially driving organismal maturation. Link: doi.org/10.1016/j.cmet.2024.06.006 Thread 🧵👇1/9
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