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Posts by Rosana Collepardo

Check out our latest work in collaboration with @kazu-maeshima.bsky.social and @masaashimazoe.bsky.social

We show that H1 is a dynamic, multivalent “liquid-like” glue of chromatin in cells: it bridges multiple nucleosomes & exchanges partners frequently to enable both compaction and flexibility

1 week ago 15 6 0 0

How do DNA sequence and histone composition modulate nucleosome plasticity? We investigated this by comparing the behaviour of 40 chemically different nucleosomes. Check our preprint below.

1 month ago 13 4 0 0

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...

1 month ago 69 25 2 5
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A vision of chromosome organization Cryogenic electron tomography of condensed chromatin enables multiscale analysis of its structure

Cryogenic electron tomography of condensed chromatin enables multiscale analysis of its structure.

Learn more in a new #SciencePerspective: https://scim.ag/3Yfn1T3

4 months ago 42 8 0 2
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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....

4 months ago 32 12 1 0

Huge congratulations, Daniel!!

4 months ago 0 0 0 0

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

4 months ago 87 41 2 1
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An electrostatic repulsion model of centromere organisation During cell division, chromosomes reorganise into compact bodies in which centromeres localise precisely at the chromatin surface[1][1]–[4][2] to enable kinetochore-microtubule interactions essential ...

These ones yes, as they are single component and the fibers are regular. But they can be heterogeneous too, one of many possible examples here: www.biorxiv.org/content/10.1...

5 months ago 1 0 0 0

Thank you♥️♥️♥️

5 months ago 1 0 0 0

In collaboration also with @huabin-zhou.bsky.social, Jorge R Espinosa and David Farré-Gil

5 months ago 0 0 0 0
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with contributions from super talented @yifangccc.bsky.social @juliamaristany.bsky.social @janhuemar.bsky.social and @nachper.bsky.social from our group

5 months ago 0 0 1 0

Very excited to present OpenCGChromatin🔥🔥🔥

A new coarse-grained model that probes full chromatin condensates at near-atomistic resolution to reveal the molecular regulation of chromatin structure and phase separation

Brilliantly led by @kieran-russell.bsky.social, with the Rosen and Orozco groups

5 months ago 48 15 2 1

Many thanks to @jojdavies.bsky.social for inviting us to take part in this exciting study, combining MCC ultra with simulations to explore how the biophysical properties of chromatin govern its structure in living cells.

Simulations by @janhuemar.bsky.social and @juliamaristany.bsky.social

5 months ago 7 0 0 0

Check out our new work, led by talented @janhuemar.bsky.social, where we uncover that pioneer factor Oct4 remodels chromatin for DNA access not by opening it but by exploiting nucleosome breathing and forming clusters 🔥🔥🔥

6 months ago 11 9 0 0
7 months ago 6 1 1 0

We found that charge asymmetry along chromatin drives centromeres to the chromosome surface during cell division 🔥🔥🔥

If you want to know more, check our latest work in collaboration with the labs of Daniel Gerlich, Mike Rosen, and Sy Redding

Simulations by superstar @juliamaristany.bsky.social

7 months ago 8 0 0 0

It was a huge treat for me personally, and the Chemistry Department more generally, to host you. Thank you for examining Pin Yu, and the inspiring talk and discussions ⭐️⭐️⭐️⭐️⭐️

9 months ago 3 0 0 0
Tandem-repeat proteins introduce tuneable properties to engineered biomolecular condensates The cell’s ability to rapidly partition biomolecules into biomolecular condensates is linked to a diverse range of cellular functions. Understanding how the structural attributes of biomolecular conde...

So excited to finally see our CTPR-condensate work published! Well done Chris, Mateo, Julia et al. ❤️ @chemicalscience.rsc.org @phar.cam.ac.uk @rcollepardo.bsky.social @juliamaristany.bsky.social
doi.org/10.1039/D5SC...

11 months ago 9 5 0 0
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In this wonderful collaboration with K Maeshima and M Shimazoe we show that H1 in living cells acts as a liquid-like glue not a driver of stiff zigzag fibers 🔥🔥🔥 Each H1 bridges multiple nucleosomes and exchanges nucleosomes frequently: boosting both compaction and dynamical behaviour of chromatin

1 year ago 17 5 1 0

Looks amazing!! Congratulations 🔥🔥🔥

1 year ago 0 0 0 0
Assistant/Associate Professor in Computational Biology - Job Opportunities - University of Cambridge Assistant/Associate Professor in Computational Biology in the Department of Applied Mathematics and Theoretical Physics at the University of Cambridge.

We are excited to announce a new faculty position here in Cambridge, for researchers in computational and/or theoretical biology, based jointly in Genetics and Mathematics. Come and join us! Happy to answer questions about research, teaching and working here. www.jobs.cam.ac.uk/job/50414/

1 year ago 311 238 5 5
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To close, we have Jan Huertas from Cambridge University @janhuemar.bsky.social presenting our work in collaboration with the Rosen lab on the structure of chromatin inside condensates and the role of histone tails #BPS2025 @mgo-bps.bsky.social

1 year ago 8 2 0 0
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María Aristizabal from Queen’s University in Canada tells us how combining experiments and simulations informs on why histone modifications are involved in cancer #BPS2025 @mgo-bps.bsky.social

1 year ago 4 1 0 0
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Shoji Takada from Kyoto University in Japan describes his impressive multiscale simulations of transcription regulation #BPS2025 @mgo-bps.bsky.social

1 year ago 6 0 0 0
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Serena Sanulli from Stanford University @serenasanulli.bsky.social discusses HP1 condensates and chromatin structure #BPS2025 @mgo-bps.bsky.social

1 year ago 8 0 0 0
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Now is the turn of Paul Meneses from Taekjip Ha lab at Johns Hopkins and Harvard Medical School discussing single molecule measurements on native chromatin #BPS2025 @mgo-bps.bsky.social

1 year ago 9 2 0 0
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Rob McGinty from University of North Carolina discusses structural mechanisms of nucleosome demethylation #BPS2025 @mgo-bps.bsky.social

1 year ago 13 4 0 0
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Now we have Marcus Woodworth from University if Pennsylvania telling us about chromatin states in native chromatin visualised with expansion microscopy #BPS2025 @mgo-bps.bsky.social

1 year ago 11 2 0 0

First is Michael Poirier from Ohio State, discussing the pathways by which H1 loads into nucleosomes #BPS2025 @mgo-bps.bsky.social

1 year ago 7 2 0 0

Starting now #BPS2025 @mgo-bps.bsky.social

1 year ago 5 1 0 0