Jules Marien
@marienj.bsky.social
47 followers 110 following 12 posts
PhD student in biophysics/biochemistry working on the interaction between the phosphorylated Tau protein and microtubules. Molecular dynamist. Tamer of IDRs and IDPs since 2022 (They/Them) https://scholar.google.com/citations?user=4S1QUPgAAAAJ&hl=fr
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Reposted by Jules Marien
daviddesancho.bsky.social
Check out our latest, where we investigate the molecular origin of differences between Lys and Arg and their roles in biomolecular #condensates

@dipcehu.bsky.social

www.biorxiv.org/content/10.1...
Reposted by Jules Marien
lindorfflarsen.bsky.social
Integrative modelling of biomolecular dynamics

Time-dependent and -resolved experiments combined with computation provide a view on molecular dynamics beyond that available from static, ensemble-averaged experiments

Review w @dariagusew.bsky.social & Carl G Henning Hansen
doi.org/10.48550/arX...
Figure 1 from the review. Caption: Comparison of a schematic example showing static, time-dependent, and time-resolved experiments illustrated by a protein folding process. (a) A static experiment measuring the observable O$_{\text{exp}}$ is shown, which can be modelled as a distribution of simulated values, O$_{\text{calc}}$, representing a conformational ensemble of folded and unfolded states. (b) Shows a time-dependent experiment, where the equilibrium dynamics of reversible folding gives rise to measured transition times $\tau_1$ and $\tau_2$. These can be modelled as equilibrium dynamics, illustrated by a free energy (FE) surface along a chosen degree of freedom (D.O.F.) (c) A time-resolved experiment probes a non-equilibrium process, where the system begins at $t_{0}$ in the folded state. During the observation time $t$ the protein unfolds until $t_{\text{max}}$. At each time point, a distinct ensemble average, O$_{\text{exp}}$, can be observed, reflecting the proteins changing structure. This evolution can be modelled as distributions of O$_{\text{calc}}$ at each time point. These are shown together with a FE surface.
Reposted by Jules Marien
giuliotesei.bsky.social
I'm hiring for a PhD position at Malmö University, Sweden!

The project will focus on molecular modelling of proteins, lipids, and biomolecular condensates at cell membranes.

More details and application form: tinyurl.com/4zm92365

Please feel free to share!

@vetenskapsradet.bsky.social | @mau.se
Snapshot of a condensate near a lipid membrane with Swedish Research Council and Malmö University logos.
Reposted by Jules Marien
sacquin-mo.bsky.social
The students of the Computational Biology M.Sc. of Paris-Saclay (AMI2B) organize the Junior Conference on Computational Biology (JC2B) that will be held on November 13, 2025 at I2BC CNRS, Gif-sur-Yvette.
The call for contributions is open until October 20 2025:
bioi2.i2bc.paris-saclay.fr/jc2b/
JC2B 2025 - Junior Conference of Computational Biology
Junior Conference of Computational Biology - Conference for young researchers in bioinformatics
bioi2.i2bc.paris-saclay.fr
Reposted by Jules Marien
baam93.bsky.social
Drug design is a 4D puzzle (molecules move!). VR lets teams “see and touch” protein–ligand fits, making AI outputs clearer and decisions faster. We outline tools, use cases, and industry insights—plus what needs fixing (workflow integration, ergonomics, security).
link.growkudos.com/1dwpqnnjk74
Virtual reality for drug design: see, touch, and improve how medicines fit their targets
This article explains how virtual reality helps researchers visualize and interact with 3D, time‑changing protein–ligand structures. It outlines three interactive levels—examining, exploring, and mani...
link.growkudos.com
Reposted by Jules Marien
paulrobustelli.bsky.social
Excited to share a new preprint:

"Monomer binding modes of small molecules that modulate the kinetics of hIAPP amyloid formation"

by graduate student Michelle Garcia together with post-doc Korey Reid.

Paper:
www.biorxiv.org/content/10.1...

Code + Ensembles: github.com/paulrobustel...
Reposted by Jules Marien
sacquin-mo.bsky.social
Il y a un an j'ai eu l'opportunité de faire une formation média-training (avec notamment les passionnantes @cecilemichaut.bsky.social et @audrey-mikaelian.bsky.social) et ça a aussi l'occasion de présenter mes recherches dans le cadre du dispositif "Brève de science" :
cnrs.fr
CNRS @cnrs.fr · 14d
🔬 Sophie Sacquin-Mora, biochimiste, étudie les protéines pour comprendre leur fonctionnement et prédire leurs comportements liés à certaines maladies. Des recherches qui offrent l’espoir de trouver de nouveaux médicaments et traitements médicaux.
Brève de science : au cœur des protéines
Faut-il forcément des microscopes et des tubes à essai pour observer des molécules ou des protéines ?
www.cnrs.fr
Reposted by Jules Marien
jerelleaj.bsky.social
Out now in #SoftMatter, our work on linking single molecule features, microstructure, and macroscopic properties of condensates! Led by Daniel Tan, a former undergrad student who is now pursuing a PhD in Computational biophysics, Dilimulati Aierken and Pablo Garcia!

pubs.rsc.org/en/content/a...
pubs.rsc.org
Reposted by Jules Marien
Reposted by Jules Marien
jerelleaj.bsky.social
Now out in #ProteinScience! Work led by the talented 🥳🥳@ananyac2000.bsky.social

onlinelibrary.wiley.com/doi/10.1002/...
Reposted by Jules Marien
sacquin-mo.bsky.social
J'ai enfin eu le temps d'écouter ce très chouette épisode de le @sciencecqfd.bsky.social.
Comme on pouvait s'en douter (si, si !) beaucoup de phénomènes quantiques dans le vivant impliquent des protéines. Petit passage en revue de celles déjà présentées sur #TOTProts :
sciencecqfd.bsky.social
#Podcast Biologie quantique : la nouvelle mécanique du vivant tinyurl.com/2yqykozd à (ré)écouter via @franceculture.fr ! #ScienceCQFD
Reposted by Jules Marien
daviddesancho.bsky.social
This preprint by @elisedd.bsky.social and @sacquin-mo.bsky.social seems consequential for people performing MD studies of phosphorylated IDPs
#MustRead
biorxiv-biochem.bsky.social
Sticky salts: overbinding of monovalent cations to phosphorylations in all-atom forcefields https://www.biorxiv.org/content/10.1101/2025.08.28.672842v1
Reposted by Jules Marien
subhambiswas.bsky.social
Excited to share that my paper on Tau–Microtubule interactions is now published in Nature Physics!🎉

Our work shows that tau goes beyond stabilizing microtubules—it also promotes the removal of defects in the microtubule lattice.

www.nature.com/articles/s41...
Tau accelerates tubulin exchange in the microtubule lattice - Nature Physics
Beyond its known role in stabilizing microtubules, it is now shown that tau protein actively promotes lattice defect repair by enhancing tubulin turnover at topological defects.
www.nature.com
marienj.bsky.social
Many thanks to @elisedd.bsky.social and @juliepuyofourtine.bsky.social for partnering with @sacquin-mo.bsky.social , Chantal Prévost and I for this groundbreaking study, I'm really proud of it ! Stay tuned folks, I'll try to go into more details once it will be published 😉
marienj.bsky.social
New preprint is out !

Bad news : current all-atom simulations of phosphorylated IDPs are very probably wrong (and yes, this is clickbaity on purpose 😇)

Good news : we know what to blame for it, and we even have an idea of how to fix it !
biorxiv-biochem.bsky.social
Sticky salts: overbinding of monovalent cations to phosphorylations in all-atom forcefields https://www.biorxiv.org/content/10.1101/2025.08.28.672842v1
Reposted by Jules Marien
aysebercinb.bsky.social
🚀 Excited to share that our article with @ezgikaraca.bsky.social is now published in Communications Biology!

In this study, we explored DNA readout rules of almost identical DNMT3A and DNMT3B (91% sequence similarity!), and we asked: how can nearly the same proteins “see” DNA so differently? 🧬✨
Reposted by Jules Marien
biorxiv-biophys.bsky.social
DynaRepo: The repository of macromolecular conformational dynamics https://www.biorxiv.org/content/10.1101/2025.08.14.670260v1
Reposted by Jules Marien
biorxivpreprint.bsky.social
Specific Combinations of Physiological Tau Phosphorylation Regulate Tau-Microtubule Interactions in Developing Neurons https://www.biorxiv.org/content/10.1101/2025.08.09.669485v1
Reposted by Jules Marien
biorxiv-biophys.bsky.social
Sequence-Dependent Conformational Landscapes of Intrinsically Disordered Proteins https://www.biorxiv.org/content/10.1101/2025.08.06.668966v1
Reposted by Jules Marien
mindonmotors.bsky.social
A few highlights from our new preprint:

On taxol-stabilized microtubules In vitro, wild-type (WT) and phosphor-resistive (AP) tau form well-defined envelopes, while phosphomimetic (E14) tau does not bind cooperatively.
Reposted by Jules Marien
biorxivpreprint.bsky.social
Hierarchically ordered multi-timescale structural dynamics of the intrinsically disordered p53 transactivation domain https://www.biorxiv.org/content/10.1101/2025.08.01.668138v1
Reposted by Jules Marien
biorxiv-biophys.bsky.social
How Well Do Molecular Dynamics Force Fields Model Peptides? A Systematic Benchmark Across Diverse Folding Behaviors https://www.biorxiv.org/content/10.1101/2025.07.31.667969v1
Reposted by Jules Marien
biorxiv-biophys.bsky.social
MDZip: Neural Compression of Molecular Dynamics Trajectories for Scalable Storage and Ensemble Reconstruction https://www.biorxiv.org/content/10.1101/2025.07.31.667955v1