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Julia Maristany

@juliamaristany.bsky.social
165 followers 149 following 22 posts

Postdoctoral Researcher at the Collepardo Lab, in Cambridge, working on chromatin phase separation She/Her :) A science, dog, photography person, and most of all, an absolute chromatin geek

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Reposted by Julia Maristany
Vijay Ramani @vram142.bsky.social · 18/06/2026
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)
biorxiv.org
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...
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Reposted by Julia Maristany
Gerlich Lab @gerlichlab.bsky.social · 25/02/2026
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...
biorxiv.org
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Reposted by Julia Maristany
bioRxiv Biophysics @biorxiv-biophys.bsky.social · 18/02/2026
A Goldilocks zone of DNA flexibility defines stable yet plastic nucleosomes, tuned by histone chemistry www.biorxiv.org/content/10.64898/20…
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Reposted by Julia Maristany
Ignacio Perez @nachper.bsky.social · 18/02/2026
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!! ⬇️⬇️⬇️
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Julia Maristany @juliamaristany.bsky.social · 18/02/2026
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... ⬆️
biorxiv.org
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Reposted by Julia Maristany
Jerelle Joseph @jerelleaj.bsky.social · 05/12/2025
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....
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Julia Maristany @juliamaristany.bsky.social · 05/12/2025
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 👩‍🔬🥼🧬
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Rosana Collepardo @rcollepardo.bsky.social · 05/12/2025
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
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Reposted by Julia Maristany
Jan Huertas @janhuemar.bsky.social · 04/12/2025
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
science.org
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...
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Julia Maristany @juliamaristany.bsky.social · 21/10/2025
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 🧬⚛️👩‍
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Jan Huertas @janhuemar.bsky.social · 21/10/2025
🚨 🚨 🚨 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
A rendering of multiple Oct4 molecules bound to a chromatin fibre
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Julia Maristany @juliamaristany.bsky.social · 10/07/2025
🚨 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...
nature.com
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...
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FragileNucleosome @fnucleosome.bsky.social · 23/03/2025
🌱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...
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Reposted by Julia Maristany
Miguel Montez @miguelmontez.bsky.social · 21/02/2025
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...
biorxiv.org
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....
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Reposted by Julia Maristany
Rosana Collepardo @rcollepardo.bsky.social · 23/01/2025
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)
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Julia Maristany @juliamaristany.bsky.social · 22/01/2025
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!
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Reposted by Julia Maristany
Jan Huertas @janhuemar.bsky.social · 22/01/2025
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...
biorxiv.org
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Multiscale Genome Organisation @mgo-bps.bsky.social · 20/01/2025
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
BPS Multiscale Genome Organization Webinar
Jan. 28th, 2025 @ 12-1 PM ET
Pablo Dans, PhD University of the Republic
Geoff Fudenberg, PhD University of Southern California
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Julia Maristany @juliamaristany.bsky.social · 24/12/2024
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!! 🔥
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