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Virginia Pimmett

@pimmett.bsky.social
153 followers 231 following 23 posts

Postdoc in the Lagha lab at IGMM in Montpellier FR // Drosophila fan, dev bio fan, microscope fan, hockey fan // 🇨🇦->🇫🇷

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Reposted by Virginia Pimmett
AskHistorians @askhistorians.bsky.social · 11/02/2026
Sometimes we feel like one of those giant unethical experiments psychologists got to run in the 1960s, except the only research goal is to test the maxim that 'there's no such thing as a stupid question'.
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Hiroshi Ochiai @hiroshiochiai.bsky.social · 11/02/2026
1/3 New bioRxiv preprint from the lab: “Minute-scale coupling of chromatin marks and transcriptional bursts”. Led by Xiohui Gao & Chaebeen Ko. bioRxiv : www.biorxiv.org/cgi/content/...
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Jacob Schreiber @jmschreiber91.bsky.social · 10/12/2025
After a huge amount of work w/ @alex-stark.bsky.social's group, a new version of our Ledidi preprint is now out! In an era of AI-designed proteins, the next leap will be controlling when, where, and how much of these proteins are expressed in living cells. www.biorxiv.org/content/10.1...
biorxiv.org
Programmatic design and editing of cis-regulatory elements
The development of modern genome editing and DNA synthesis has enabled researchers to edit DNA sequences with high precision but has left unsolved the problem of designing these edits. We introduce Le...
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Claudio Cantù @claudiocantu81.bsky.social · 13/12/2025
Can one map the genome-wide binding (1) and its protein partners (2) simultaneously from the same sample? Yes, one can. with CUT&ID ✂️🪪 Spearheaded — singlehandedly — by @annanordin.bsky.social No need of transgenesis, cloning and overexpression. Check it out, it's fast and its works.
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Virginia Pimmett @pimmett.bsky.social · 11/12/2025
Dead internet theory gets yet another point on the board.
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Kim Lane Scheppele @kimlanelaw.bsky.social · 10/12/2025
All travelers from ESTA countries (yes the ones on visa waiver programs) will have to disclose 5 years of social media + huge amounts of personal data to enter the US now. All US academic associations should now meet outside the US if we want to meet our international colleagues.
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bioRxiv Molecular Biology @biorxiv-molbio.bsky.social · 27/11/2025
Single-Molecule DNA Footprinting and Transcription Imaging Reveal the Molecular Mechanisms of Promoter Dynamics www.biorxiv.org/content/10.1101/202…
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Cell - a Cell Press journal @cp-cell.bsky.social · 26/11/2025
Now online! Thermodynamic principles link in vitro transcription factor affinities to single-molecule chromatin states in cells
dlvr.it
Thermodynamic principles link in vitro transcription factor affinities to single-molecule chromatin states in cells
In vitro-derived insights into features that drive transcription factor binding to DNA, including motif-adjacent sequence, enable prediction of chromatin states and transcription factor occupancy in cells.
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Harmit Singh Malik @harmitmalik.bsky.social · 12/11/2025
Are you an early-stage graduate student (2nd or 3rd year) or early-stage postdoc based in the US or Canada, working primarily in Drosophila? Would you like to help improve the experience of all trainees working in Drosophila research? If so, read on. (Please repost to reach a broad audience.)
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CNRS en Occitanie Est @cnrsoccitanieest.bsky.social · 30/09/2025
🧬 𝐋’𝐚𝐫𝐭 𝐝𝐞́𝐥𝐢𝐜𝐚𝐭 𝐝𝐞 𝐟𝐚𝐢𝐫𝐞 𝐭𝐚𝐢𝐫𝐞 𝐥𝐞𝐬 𝐠𝐞̀𝐧𝐞𝐬 Des scientifiques de l'IGMM utilisent l’embryon de drosophile pour démontrer que la répression de l’expression des gènes est un mécanisme beaucoup plus complexe qu’attendu. 📖 👉 lnkd.in/dPqUREuf 📷 © Mounia Lagha et Virginia Pimmett
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FlyBase @flybase.bsky.social · 15/08/2025
FlyBase needs your help! We ask that European labs continue to contribute to Cambridge, UK FlyBase, whereas US and other non-European labs can contribute to US FlyBase. For more information and how to donate: wiki.flybase.org/wiki/FlyBase...
wiki.flybase.org
FlyBase:Contribute to FlyBase - FlyBase Wiki
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Virginia Pimmett @pimmett.bsky.social · 12/08/2025
On vacation but still managed to find a microscope. Spouse is woefully unsurprised.
Zeiss Axio A.1 and a small sample encased in a museum exhibit.
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James Briscoe @jamesbriscoe.bsky.social · 04/08/2025
A Summer reading recommendation: new primer in @dev-journal.bsky.social explains how dynamical systems theory unlocks the logic of developmental patterning Everything from bistable switches & oscillators to phase portraits & more with Python code to explore journals.biologists.com/dev/article/...
journals.biologists.com
From genes to patterns: five key dynamical systems concepts to decode developmental regulatory mechanisms
Summary: Dynamical systems theory provides a powerful quantitative and intuitive framework to understand developmental processes. This Primer brings key concepts of this framework to the ever-growing ...
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IGMM-Montpellier @igmm-montpel.bsky.social · 28/07/2025
🚀 @hfspo.bsky.social funded Postdoc 3-year contract Start after Dec 2025 📩 Apply: mounia.lagha@igmm.cnrs.fr Subject: "[HFSP Post doc application]" 📎 CV + short research summary + cover letter 🔗 More info: euraxess.ec.europa.eu/jobs/363437 @laghalab.bsky.social @umontpellier.bsky.social @cnrs.fr
euraxess.ec.europa.eu
A PhD in biology, biophysics or a closely related field is required by the start of the appointment. Interdisciplinary profiles are strongly encouraged to apply.
- work environment:
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Lennart Hilbert @lennarthilbert.bsky.social · 29/07/2025
We are hiring! "Researcher in DNA-Based Information Processing Systems" (PhD or postdoc level). Co-supervision by Prof. Ralf Reussner (KIT computer science) and myself (biological systems). Combination of experiments and computational work. Please Apply / Repost! www.pse.kit.edu/english/karr...
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Virginia Pimmett @pimmett.bsky.social · 28/07/2025
Come and join the team! It's a stellar group of people and some really interesting questions to dissect with all kinds of cool tools in play.
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Robert Evans (the Only Robert Evans) @iwriteok.bsky.social · 28/07/2025
Tom Lehrer died today. He was one of the great comedians our culture ever produced. Without Tom, there's no Weird Al, probably no that entire branch of comedy. He went alone and beat the odds. youtu.be/frAEmhqdLFs?...
youtu.be
Tom Lehrer - We Will All Go Together When We Go
YouTube video by The Tom Lehrer Wisdom Channel
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Danielle Bianchi @daaninthelab.bsky.social · 04/07/2025
In today’s publication in Science we introduce Zincore: a novel protein of QRICH1 and SEPHS1 and functions as a transcriptional coregulator dedicated to zinc finger transcription factors. Here’s how we found it: 🧵 www.science.org/doi/10.1126/... 1/11
science.org
Zincore, an atypical coregulator, binds zinc finger transcription factors to control gene expression
Zinc finger proteins (ZNFs) are the largest family of transcription factors, yet how they activate gene expression remains unclear. In this study, we identified Zincore, a protein complex consisting o...
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Julie Carnesecchi @jcarnesecchi.bsky.social · 04/07/2025
🎉 Thrilled to share our new paper in @narjournal.bsky.social! We uncover how the Hox TF Ultrabithorax controls alternative splicing to shape muscle patterning and homeotic identity 🧬 @igmm-montpel.bsky.social 🔗 doi.org/10.1093/nar/...
doi.org
Synergistic DNA and RNA binding of the Hox transcription factor Ultrabithorax coordinates splicing and shapes in vivo homeotic functions
Abstract. The dual interaction of many transcription factors (TFs) with both DNA and RNA is an underexplored issue that could fundamentally reshape our und
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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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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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Fillip Port @crisprflydesign.bsky.social · 26/05/2025
Why use #CRISPR in #Drosophila when RNAi works so well? Because for some genes well is not good enough. Check out new preprint from the lab demonstrating a role for Vps15 in Wingless trafficking. Something that was missed in several RNAi screens. www.biorxiv.org/content/10.1...
Images from the linked preprint showing Wingless stainings in the Drosophila wing imaginal disc. Targeting vps15 with two indepependent RNAi lines (paper also shows the same with a third line) does not result in a phenotype. In contrast, targeting vps15 with two independent sgRNA constructs and Cas9 results in strong accumulation of Wingless protein in perturbed cells.
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Micah @rincewind.run · 29/04/2025
incredible, he's actually going down, what a perfect end to the night how much is Poilievre cursing Trump out right now, he's got to be fucking livid
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Mounia Lagha @laghalab.bsky.social · 02/04/2025
check out our latest paper investigating how TF concentration affects transcription dynamics @dev-journal.bsky.social. optogenetics+mRNA #imaging in #drosophila #embryos. joint effort with @stathopouloslab.bsky.social @caltech.edu. bravo to @pimmett.bsky.social and J.McGehee.
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Joe Kassabian @jkass99.bsky.social · 31/03/2025
It's always the people you most expect www.bbc.com/news/article...
bbc.com
Marine Le Pen found guilty in EU funding embezzlement case
It could mean the leader of the far-right National Rally is banned from standing in the 2027 French presidential election.
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Alt NIH Bluesky 🧪 @altnih4science.bsky.social · 28/03/2025
A thread about power. There is a lesson here, about how beating autocrats like Trump involves STANDING UP to them, not backing down. Find a way to stand up. Canada's PM told Trump to fuck off, and now Trump is treating him better. 1/
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Luca Giorgetti lab @FMI @lucagiorgetti.bsky.social · 29/03/2025
Celebrating 10 years of our lab with a new preprint: www.biorxiv.org/content/10.1... How does enhancer location within a TAD control transcriptional bursts from a cognate promoter? Experiments by Jana Tünnermann and modelling by Gregory Roth
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Virginia Pimmett @pimmett.bsky.social · 24/03/2025
A stressful tragedy for the scientific staff, but a blessing for humanity. Let it fade into data-destroyed obscurity.
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Mounia Lagha @laghalab.bsky.social · 16/03/2025
Don’t forget to register for this special conference. If you like gene regulation from single molecule approaches, please join us #EMBLSingleMolecule. Imaging and Omics and a bit of theory for lots of fun!
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Seppe De Winter @seppedewinter.bsky.social · 28/02/2025
We wrote a review article on modelling and design of transcriptional enhancers using sequence-to-function models. From conventional machine learning methods to CNNs and using models as oracles/generative AI for synthetic enhancer design! @natrevbioeng.bsky.social www.nature.com/articles/s44...
nature.com
Modelling and design of transcriptional enhancers - Nature Reviews Bioengineering
Enhancers are genomic elements critical for regulating gene expression. In this Review, the authors discuss how sequence-to-function models can be used to unravel the rules underlying enhancer activit...
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Stand Up For Science France @standupforscifr.bsky.social · 07/03/2025
#StandUpForScience #StandUpForScience_Montpellier Montpellier. Pour finir la journée tous ensemble !
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Frank Schnorrer @frankschnorrer.bsky.social · 06/03/2025
Spatial transcriptomics in fly brain and body. Wonderful collaboration with @steinaerts.bsky.social led by @jasperjanssens.bsky.social @pierremangeol.bsky.social Nikolai Hecker & Gabriele Partel - look at mRNA patterns in muscles and brains spatialfly.aertslab.org elifesciences.org/reviewed-pre...
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Sahin Naqvi @sahinnaqvi.bsky.social · 27/02/2025
Excited to share the peer-reviewed version of our paper on predicting the chromatin response to TF dosage using transfer learning www.cell.com/cell-genomic...
cell.com
Transfer learning reveals sequence determinants of the quantitative response to transcription factor dosage
Naqvi et al. reveal how DNA sequence determines the chromatin response to transcription factor (TF) dosage changes. By combining deep learning and chemical genetics, they uncover specific sequence fea...
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Journal of Cell Science @jcellsci.bsky.social · 26/02/2025
In her Essay, Renata Basto highlights the huge budget cuts facing the scientific community in France. In response to the cuts, a group of researchers has formed the ‘Pour une Recherche d'Avenir’ initiative to secure the future of French research. journals.biologists.com/jcs/article/...
journals.biologists.com
The importance of delivering Recherche d'Avenir – research for the future
In recent years, several European countries, including France, have reduced their investment in scientific research, with biomedical research taking a significant hit. The primary casualty is basic re...
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Virginia Pimmett @pimmett.bsky.social · 26/02/2025
Explained compound-X chromosomes to a non-fly geneticist today. Turns out: a) I had enough colours of markers on my desk to draw out the cross, and b) it appears my undergrad classes in developmental gene regulation from undergrad *are* still buried deep in my brain somewhere.
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Christof Gebhardt @gebhardtlab.bsky.social · 21/02/2025
Single molecules, in living zebrafish embryos, during hour-long period of development: Jonas' work on binding kinetics of cohesin and CTCF around ZGA now online. Great collab with labs of @lucagiorgetti.bsky.social @akispapantonis.bsky.social doi.org/10.1038/s414...
doi.org
Increasingly efficient chromatin binding of cohesin and CTCF supports chromatin architecture formation during zebrafish embryogenesis - Nature Communications
Using single-molecule tracking of cohesin and CTCF during zebrafish embryogenesis, the molecular kinetics underlying chromatin architecture formation was revealed and gradual emergence of chromatin st...
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James Briscoe @jamesbriscoe.bsky.social · 21/02/2025
"Genes are... the easy part" @philipcball.bsky.social argues biologists need to embrace complexity from the start, rather than beginning with oversimplified "one gene, one trait" models +1 www.cell.com/cell-systems...
cell.com
Should biology put complexity first?
The dictum “Everything should be made as simple as possible, but no simpler” poses a problem for biology. How simply can it be told without doing damage to its complex nature? The answer might be foun...
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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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BIOLuM Montpellier @biolum-montpellier.bsky.social · 14/02/2025
#SaveTheDate Valérie Hilgers on March the 4th #BIOLuMSeminarSeries @igmm-montpel.bsky.social @irim-life.bsky.social @crbm-montpellier.bsky.social @laghalab.bsky.social
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Jake Grumbach @jakemgrumbach.bsky.social · 17/02/2025
Now that musk is saying he’s doing the DOGE stuff “because the globalists have plotted a Great Replacement in which they use government handouts to buy votes from illegal immigrants and urban blacks” maybe we don’t have to act like this is about deficits or cost cutting anymore
Elon Musk & @elonmusk
Follow
The REAL reason so many Democrats are upset about entitlements (social security, medical, etc) fraud investigations is that they are using your taxpayer money as handouts to attract and retain ILLEGAL immigrants. Their future voters.
That's what it's all about.
Truth.
10:48 AM • 2/17/25 • 7.7M Views
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George Takei @georgetakei.bsky.social · 14/02/2025
Stand with science. Always.
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Mir Lab @mirlab.bsky.social · 12/02/2025
1/n Excited to share our new preprint! Using live imaging in Drosophila embryos, we show that RNA Pol II clusters switch from sites of initiation to elongation during zygotic genome activation and that they are stably associated with an active gene: www.biorxiv.org/content/10.1...
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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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Virginia Pimmett @pimmett.bsky.social · 10/02/2025
Today's madcap adventure in pursuit of science: convinced my labmates to eat a bunch of cheese so I could have the wrappers for an experiment. 💯 agree that @laghalab.bsky.social's homemade chocolate cake today was way better, but they kindly suffered through the otherwise awful cheese anyways.
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bioRxiv Developmental Biology @biorxiv-devbio.bsky.social · 08/02/2025
Insect wings arose with a genetic circuit that extends the useful range of a BMP morphogen www.biorxiv.org/content/10.1101/202…
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bioRxiv Developmental Biology @biorxiv-devbio.bsky.social · 09/02/2025
Measuring morphogen transport over multiple spatial scales in live zebrafish embryos www.biorxiv.org/content/10.1101/202…
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Romain Koszul @rkoszul.bsky.social · 07/02/2025
Our latest work: how can compartmentalization emerge in a eukaryotic genome lacking canonical heterochromatin? By investigating bacterial genomes put in yeast, we show that the presence or absence of transcription is sufficient! #chromatin #3Dgenome #generegulation www.science.org/doi/10.1126/... 👇
science.org
Sequence-dependent activity and compartmentalization of foreign DNA in a eukaryotic nucleus
In eukaryotes, DNA-associated protein complexes coevolve with genomic sequences to orchestrate chromatin folding. We investigate the relationship between DNA sequence and the spontaneous loading and a...
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Maximilian Madern @maxmadern.bsky.social · 03/02/2025
Our paper is out! We delevoped a method to follow individual translating ribosomes for hours in living cells, and discovered that ribosomes are great friends and help each other in problematic situations: www.cell.com/cell/fulltex...
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Virginia Pimmett @pimmett.bsky.social · 02/02/2025
Apropos of very little in global happenings, the lab jukebox today is featuring CanCon🇨🇦 by way of Great Big Sea: www.youtube.com/watch?v=-wcj...
youtube.com
Great Big Sea - Ordinary Day
YouTube video by Great Big Sea
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David Solecki @so-lets-kilab70.bsky.social · 28/01/2025
Hey Halo-tag users—wish you could bring something along for the ride with a JF dye? Pratik Kumar & Luke Lavis dropped multifunctional fluorescent ligands letting us pull down & manipulate organelles. Proud of our cameo showing a killer application: Brd4 hops from euchromatin to nucleoli in 60 min!
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