JIT 4 summer, the latest preprint from our lab, brilliantly led by @kaitezhang.bsky.social w/ support from Collepardo lab (@juliamaristany.bsky.social / @janhuemar.bsky.social). www.biorxiv.org/content/10.6... describes a new single-molecule epigenomic method, & discoveries it enables ... (1/n)

Single-molecule nucleosome spacing coordinates chromatin fiber interactions

Nucleosome spacing influences higher-order chromatin fiber organization in vitro but how this relates to cellular chromosome structure remains contentious. To address this, we developed Ligation Analy...

biorxiv.org

1/New preprint just dropped! 🔥🔥 We investigate how the genome is destroyed in apoptotic cells in a way that prevents DNA fragments from spreading beyond the dying cell 🧬⚰ Done here at @imbavienna.bsky.social & in the super @rcollepardo.bsky.social & Rosen labs: www.biorxiv.org/content/10.6...

A Goldilocks zone of DNA flexibility defines stable yet plastic nucleosomes, tuned by histone chemistry https://www.biorxiv.org/content/10.64898/2026.02.16.706184v1

How do DNA sequence and histone chemistry tune nucleosome stability and plasticity? Check out our latest work to find out. Now available on bioRxiv! www.biorxiv.org/content/10.6... @juliamaristany.bsky.social @janhuemar.bsky.social @rcollepardo.bsky.social Share with your colleagues!! ⬇️⬇️⬇️

Julia Maristany@juliamaristany.bsky.social · 7mo ago

New paper alert from the group!! 🚨: DNA flexibility tips the balance between stability and plasticity in nucleosomes One of the works from my PhD, co-led alongside @nachper.bsky.social, is finally out! Work from @rcollepardo.bsky.social & @janhuemar.bsky.social ⬇️ www.biorxiv.org/content/10.6... ⬆️

New paper alert from the group!! 🚨: DNA flexibility tips the balance between stability and plasticity in nucleosomes One of the works from my PhD, co-led alongside @nachper.bsky.social, is finally out! Work from @rcollepardo.bsky.social & @janhuemar.bsky.social ⬇️ www.biorxiv.org/content/10.6... ⬆️

Want to learn about how we use computational approaches at different scales to study biomolecular condensates? Check out our latest review, out in Advances in Physics X @juliamaristany.bsky.social @alinaemelianova.bsky.social @rcollepardo.bsky.social www.tandfonline.com/doi/epdf/10....

Our latest work is out in @science.org !!!!!!! We look into #chromatin condensates at near atomistic resolution to decipher its phase behaviour and material properties 👩‍🔬🥼🧬

Di Jiang@dijiang319.bsky.social · 10mo ago

@science.org 🧬🔬 Multiscale structure of #chromatin condensates explains phase separation and material properties | Science www.science.org/doi/10.1126/... @janhuemar.bsky.social et al.

Our Science paper is out! Huge congratulations to @huabin-zhou.bsky.social, Mike Rosen, and the brilliant @janhuemar.bsky.social @juliamaristany.bsky.social and @kieran-russell.bsky.social from our group News: bit.ly/4avnkAr and bit.ly/3XBGVHS Great perspective by @vram142.bsky.social +K Zhang

Di Jiang@dijiang319.bsky.social · 10mo ago

@science.org 🧬🔬 Multiscale structure of #chromatin condensates explains phase separation and material properties | Science www.science.org/doi/10.1126/... @janhuemar.bsky.social et al.

Super excited to share that our paper is now out in @science.org. Lots of work, but also lots of fun getting this out. Be sure to check it out! www.science.org/doi/10.1126/... Also, follow: @huabin-zhou.bsky.social @juliamaristany.bsky.social @kieran-russell.bsky.social @rcollepardo.bsky.social

Multiscale structure of chromatin condensates explains phase separation and material properties

The structure and interaction networks of molecules within biomolecular condensates are poorly understood. Using cryo–electron tomography and molecular dynamics simulations, we elucidated the structur...

science.org

Jan Huertas@janhuemar.bsky.social · 2y ago

[2/6] How’d we do it? High-resolution cryo-ET captured chromatin condensates at nanometer detail, while simulations brought the histone tails and nucleosome dynamics to life. Together, these tools showed how molecular interactions drive mesoscale chromatin behavior.

New paper from the @rcollepardo.bsky.social lab!!!!! This time, we turn our attention to Oct4, a key pioneer transcription factor 👇👇👇👇 With simulations by @janhuemar.bsky.social, we propose a mechanism through which the clustering of Oct4 upon chromatin binding enhances chromatin plasticity 🧬⚛️👩‍

Jan Huertas@janhuemar.bsky.social · 11mo ago

🚨 🚨 🚨 New preprint alert!!! 🚨 🚨 🚨 In the past, we have learnt that Oct4 can induce nucleosome breathing on the mono-nucleosome level. But what happens when you have a fibre of multiple nucleosomes? www.biorxiv.org/content/10.1... @rcollepardo.bsky.social @juliamaristany.bsky.social

🚨 🚨 🚨 New preprint alert!!! 🚨 🚨 🚨 In the past, we have learnt that Oct4 can induce nucleosome breathing on the mono-nucleosome level. But what happens when you have a fibre of multiple nucleosomes? www.biorxiv.org/content/10.1... @rcollepardo.bsky.social @juliamaristany.bsky.social

🚨 New paper out in Nature Comms! From the Rosen, Redding and Collepardo Labs, we uncover how #nucleosome spacing fine-tunes the architecture of #chromatin condensates. 👇 A short thread on how physical #genome organization emerges from molecular interactions: www.nature.com/articles/s41...

Nucleosome spacing can fine-tune higher-order chromatin assembly - Nature Communications

Internucleosomal linker length alters the stability and dynamics of chromatin condensates by shifting the balance between inter- and intramolecular interactions. Further, by changing the linker length...

nature.com

🌱Join us for the first #FragileNucleosome seminar of this spring! We are excited to host @juliamaristany.bsky.social & @chribue.bsky.social this week! If you have registered before you can join from the same link, if not, don't forget to register! us06web.zoom.us/webinar/regi...

We are happy to share our work on local #nucleosome dynamics integrating #temperature inputs into an #epigenetic switching mechanism. ⚠️ Preprint alert!! www.biorxiv.org/content/10.1...

Cold-induced nucleosome dynamics linked to silencing of Arabidopsis FLC

Temperature influences nucleosome dynamics, and thus chromatin, to regulate gene expression. Such mechanisms underlie the epigenetic silencing of Arabidopsis FLOWERING LOCUS C (FLC) by prolonged cold....

biorxiv.org

What is the multiscale structure of chromatin condensates? How does it shape thermodynamic and material properties? We address this at near-atomistic resolution🔥🔥🔥 using cryoET (Rosen & Villa labs, led by H Zhou), a new multiscale model (K Russell) and cryoET-guided sims (J Huertas & J Maristany)

Jan Huertas@janhuemar.bsky.social · 2y ago

Exciting new preprint alert! 🚨 The Collepardo lab, teaming up with Huabin Zhou and the Rosen lab we took a deep, high-resolution look into chromatin condensates! [1/6] #Chromatin #MD @rcollepardo.bsky.social @juliamaristany.bsky.social www.biorxiv.org/content/10.1...

So excited to see our most recent paper in collaboration with the Rosen Lab out in Bioarxiv today!! 🔥🔥 We look into chromatin condensates in high resolution! 🧪🔬👩‍🔬 Using cryo-ET and MD sims, we studied chromatin condensates across scales, from individual amino acids to their network architecture!

Jan Huertas@janhuemar.bsky.social · 2y ago

Exciting new preprint alert! 🚨 The Collepardo lab, teaming up with Huabin Zhou and the Rosen lab we took a deep, high-resolution look into chromatin condensates! [1/6] #Chromatin #MD @rcollepardo.bsky.social @juliamaristany.bsky.social www.biorxiv.org/content/10.1...

Exciting new preprint alert! 🚨 The Collepardo lab, teaming up with Huabin Zhou and the Rosen lab we took a deep, high-resolution look into chromatin condensates! [1/6] #Chromatin #MD @rcollepardo.bsky.social @juliamaristany.bsky.social www.biorxiv.org/content/10.1...

The Multiscale Genome Organisation is now on Bluesky! Our first post is to announce our next webinar. Join us next week on Tuesday, Jan. 28th at 12:00 E.T. for two exciting talks by Pablo Dans and @gfudenberg.bsky.social See you all there! Link: mit.zoom.us/j/91715298970

How does chromatin linker length affect its emergent phase behavior? 🧬👩‍🔬 We explore this question via microscopy and MD simulations: Our new paper, in collaboration with the Rosen and Redding Labs, is out today!! 🔥

Rosana Collepardo@rcollepardo.bsky.social · 2y ago

Is chromatin ordered or disordered? It all depends on the linker DNA length. Check our latest work with Mike Rosen and Sy Redding. We explore how changes in linker DNA length (as small as 1 bp) fine-tune chromatin structure, between order and disorder, and the properties of chromatin droplets