Very nice Preview by @bramkamplab.bsky.social on the SMC DNA loading paper by our @roisnehamelinf.bsky.social "Weaving the loops of life: DNA loading by loop-extrusion machines in plasmid defense and genome organization" Molecular Cell www.cell.com/molecular-ce...

Our latest paper has just been published in Cell! doi.org/10.1016/j.ce... We developed a new method called MCC ultra, which allows 3D chromatin structure to be visualised with a 1 base pair pixel size.

Hi Genome Engineering peeps! When you genotype crude cell lysates after colony picking, which PCR enzyme/buffer composition works best for you for genotyping >1.5kb amplicons? KOD Xtreme is amazingly robust but so $$$😬 Thank you!

Happy to share our latest publication, in which we show that the arrangement of nucleosomes around CTCF sites contributes to higher-order organisation of chromatin into TADs: www.embopress.org/doi/full/10....

Here, we show that the unique regulatory landscape of ecDNA enables an ancient LINE to resurrect and act as an enhancer of Myc. This was so fun with @katerinakraft.bsky.social and @mattjones.bsky.social and others. www.nature.com/articles/s41...

Our collab w. V Goel, @nicholas-aboreden.bsky.social , J Jusuf, G Blobel, L Mirny, @irate-physicist.bsky.social out in @natsmb.nature.com www.nature.com/articles/s41... Was co-submitted with @allanaschooley.bsky.social @jobdekker.bsky.social whose paper should also come out soon Brief thread 👇

The TArgeted Cohesin Loader (TACL) paper was just published. Happy that we were able to contribute to this really exciting project! If you want to learn how targeting cohesin to defined loci in the genome affects the local chromatin environment and transcription, look no further! rdcu.be/eLiT5

Ever wondered what drives enhancer-promoter specificity? Why would an enhancer activate one gene rather than another neighboring one? Check our latest preprint, led by @mmasoura.bsky.social, to find out! www.biorxiv.org/content/10.1...

What is a promoter? And how does it work? We very happy to share our latest work trying to understand enhancer-promoter compatibility. I am very excited about the results of @blanka-majchrzycka.bsky.social, which changed the way I think about promoters www.biorxiv.org/content/10.1...

How do SMC complexes load onto DNA to get ready for loop extrusion? @roisnehamelinf.bsky.social & co discovered that Wadjet, an SMC complex involved in bacterial DNA immunity, performs some impressive molecular gymnastics 🤸‍♂️🤸‍♂️🤸‍♂️. Check out the new paper: www.cell.com/molecular-ce...

⚠️ Paper alert: Using a novel CRISPR screening approach, we mapped the entire regulatory network controlling Xist—key for X-chromosome inactivation. 👉 We discover how sex and development signals are decoded at a single gene locus. www.nature.com/articles/s41... 👇 Bluetorial

Today I am so pleased to present our work on how chromatin remodelers affect mesoscale chromatin organization. www.science.org/doi/10.1126/...

📣 New preprint from the lab - Endogenous fluctuations of transcription factor levels shape their occupancy in unexpected ways www.biorxiv.org/content/10.1...

How do enhancers activate genes? Confused about how cohesin contributes? Physics uncovers a molecular scenario that explains the biological data across labs Truly exciting findings from @lucagiorgetti.bsky.social 💪

Really excited to share our latest work led by @mattiaubertini.bsky.social and @nesslfy.bsky.social: we report that cohesin loop extrusion creates rare but long-lived encounters between genomic sequences which underlie efficient enhancer-promoter communication. www.biorxiv.org/content/10.1... A🧵👇

Really enjoyed reading the new @lucagiorgetti.bsky.social lab preprint that makes the case that not all E-P interactions are created equal - it is the subset of long-lived extrusion-mediated E-P interactions that are most transcriptionally important: www.biorxiv.org/content/10.1...

Excited to share our first preprint! We developed an image-based pooled screen to uncover regulators of HP1 condensates and discovered a link with intronic RNA and RNA processing. 👏 Congrats to all authors, especially Matthew, Shaopu & Chris!

Some (+)ve news to lighten another heavy weekend: our latest preprint (c/o Mattiroli + Ramani labs) is up! www.biorxiv.org/content/10.1... A tour-de-force by 1st authors Bruna Eckhardt & @palindromephd.bsky.social, focusing on chromatin replication. RTs welcome; tweetorial in 3,2...(1/n)

✨Exciting news: the main story of my PhD is out in Science! Together with Christine Moene @cmoene.bsky.social, we explored what happens when you scramble the genome—revealing how Sox2’s position shapes enhancer activation. 📖 Read the full story here: www.science.org/doi/10.1126/...

Excited to share another new preprint from our lab in which we developed a cluster-based phasing strategy using long read nano-NOMe-seq data to link distinct CTCF binding states—captured at the single molecule level—to the transcriptional status of genes: biorxiv.org/content/10.1...

We’re back! Registration is NOW OPEN for the 6th Annual Meeting on Advances in Nuclear Topology & 3D Chromatin Architecture in Cancer. Don’t miss insights from leading experts in the field. Join us online on Nov 25, 2025—register for free: bit.ly/chromatin-2025 #chromatin2025

Excited to share our preprint w/Gordana Wutz, Iain Davidson, Leonid Mirny, Jan-Michael Peters www.biorxiv.org/content/10.1... Evidence that PDS5A/B limits NIPBL-cohesin life w/effects on CTCF boundaries & chrm compartments, +mechanisms of compartment-extrusion interplay & cohesin regulation by PDS5

Excitingly, the lab of Jan-Michael Peters just reported largely concordant findings: The PDS5:NIPBL balance in cells tunes the rate/velocity of cohesin loop extrusion, shaping chromosomes from loops to compartments 🚅➰ www.biorxiv.org/content/10.1...

In Brief: A new center in San Francisco will offer tailor-made CRISPR therapies to cure children with rare diseases www.nature.com/articles/s41...

Histone Acetylation Differentially Modulates CTCF-CTCF Loops and Intra-TAD Interactions https://www.biorxiv.org/content/10.1101/2025.07.29.667515v1

We all know that cancers -even from the same subtype- are highly heterogeneous right? In a new study we asked whether this was also the case for the three-dimensional organization of the genome in breast cancer. The answer: it’s complicated. www.cell.com/iscience/ful...

New preprint with @gfudenberg.bsky.social We find the rate of cohesin loop extrusion in cells is set by NIPBL dosage and tunes many aspects of chromosome folding. This provides a molecular basis for NIPBL haploinsufficiency in humans. 🧵👇 www.biorxiv.org/content/10.1...

Another paper bluetorial! Today: how does the spatial location of genes influence their function? (1/n) www.nature.com/articles/s41...

The basic sciences are HIRING at UCSF: open recruitment in the Department of Biochemistry & Biophysics. Please share and please apply! aprecruit.ucsf.edu/JPF05702

🚨New preprint from the lab🚨 🧬 What keeps certain chromatin domains anchored at the nuclear periphery? Our new genome-wide HiDRO screen uncovers a key role for RNA-binding protein hnRNPK. www.biorxiv.org/content/10.1...

New work from @beckof.bsky.social and our lab's collaboration, with @alengronne.bsky.social! Multifaceted influence of transcription on yeast chromosome folding... loop extrusion of course but also active promoters making loops, bypassing centromeres boundaries www.sciencedirect.com/science/arti...

Excited to share the latest work from the lab led by @eharo84.bsky.social, in which we have used synthetic biology to explore the mechanisms by which different types of long-range enhancers ensure robust and precise developmental gene expression www.biorxiv.org/content/10.1...

A jewel of a presentation on the history of chromatin. Always a pleasure to go back in time with those who helped shape it. I am grateful for the insights and stories shared by Drs. Ada and Donald Olins. youtu.be/QExPH1bVbGU

Tenure-track faculty search of the UCSF Biochemistry & Biophysics Department is open for applications! We are looking for creative, innovative scientists asking fundamental questions in any area of biology. Join our vibrant, collaborative, and supportive community! aprecruit.ucsf.edu/JPF05702

The nuclear lamina strengthens the nucleus and organizes the genome. So what happens when you acutely degrade it in living cells? Not what we thought! (1/n) www.molbiolcell.org/doi/10.1091/...

Our new non-denaturing nanoscale 3D DNA tracing technology provides single-cell (and sister-chromatid specific!) readout of chromatin structure with 10kb genomic resolution - Check it out! www.nature.com/articles/s41... Congratulations to Kai and Oyvind!!

We found a new asymmetry in the large-scale chromosome structure: sister chromatids are systematically shifted by hundreds of kb in the 5′→3′ direction of their inherited strands! The work was led by Flavia Corsi, in close collaboration with the Daniel Gerlich lab. www.biorxiv.org/content/10.1... 1/

Our paper describing the Range Extender element which is required and sufficient for long-range enhancer activation at the Shh locus is now available at @nature.com. Congrats to @gracebower.bsky.social who led the study. Below is a brief summary of the main findings www.nature.com/articles/s41... 1/

(1/n) Excited to present the latest work from the de Wit lab, where we identify and characterise loop extrusion-mediated fountains in mammalian genomes using acute depletion of 3D genome regulators: doi.org/10.1093/nar/.... A Bluetorial🧵:

URGENT: FlyBase has lost practically all its funding overnight; even user fees are tied up in denied grant funding. 🤬🤯 Any lab using @flybase.bsky.social please donate using the link in post below. This incredible community, on whose backs our #Drosophila labs depend, can't be left out to dry.

Great to see this published @genesdev.bsky.social. Evidence that enhancers can activate a bystander gene in an adjacent TAD, and that cohesin facilitates this. @uoe-igc.bsky.social. pubmed.ncbi.nlm.nih.gov/40436628/

How to find Evolutionary Conserved Enhancers in 2025? 🐣-🐭 Check out our paper - fresh off the press!!! We find widespread functional conservation of enhancers in absence of sequence homology Including: a bioinformatic tool to map sequence-diverged enhancers! rdcu.be/enVDN github.com/tobiaszehnde...

🚨The formation of 3D chromatin hubs is a poorly understood phenomenon. I wrote a N&V about the excellent work Karpinska, Zhu and colleagues, from @mariekeoudelaar.bsky.social lab, who shed new light on the formation and function of these structures. rdcu.be/elPt3

Very excited to see this out! We used scRNAseq to show increased neutrophil production in the bone marrow in breast cancer, indicating systemic inflammation. These neutrophils promote metastasis. However, this can be blocked by treating mice with an IL1-b inhibitor! See 🧵 and paper for details.

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...

🚨 Preprint 🚨 Ever wondered how cells prepare their genomes to enable new cell-fates? In this team up with the Kind lab, we show that genes are repositioned in the nucleus to get ready for future activation and tissue formation. Read 🧵👇 to find out how and when this happens! doi.org/10.1101/2025...

(1/n) New preprint from @claricehongky.bsky.social Fan Fang Varshini Ramanathan in collab w Jie Liu. Q: How do we get ultra-high-res 3D genome maps? A: New deep learning model, Cleopatra. Cleo trains on Micro-C, fine-tunes on RCMC, and predicts genome-wide 3D maps at ultra-high resolution.

Happy to see that our recent work has been discussed in a News & Views @natsmb.nature.com by Christine Disteche and Xinxian Deng 😀 ⬇️ rdcu.be/ekTr1

Check out our latest preprint, led by Dr. Siyu Chen, that brings together an amazing team of scientists from several labs ( @vram142.bsky.social, Tavazoie, and Navickas) to tackle a fundamental problem in biology: how do cells regulate expression of their tRNAs? www.biorxiv.org/content/10.1...

How does the genome find its place in the 3D space of the nucleus after fertilization? Out now @cellcellpress.bsky.social: cell.com/cell/fulltext/… 👇 A thread 👇