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Ezequiel Galpern

@eag91.bsky.social
284 followers 1.1K following 29 posts

‪MSCA fellow at @crg.eu‬ w/M. Dias and @jonnyfrazer.bsky.social > Biological Physics | Proteins | Comp Bio | ML scholar.google.com/citations?user=n…

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Ezequiel Galpern @eag91.bsky.social · 25/09/2026
🧬 What do deep-learning models for proteins actually learn? Our new review looks at how model predictions relate to fitness, folding stability and function. With @cwjpugh.bsky.social, Mafalda Dias & @jonnyfrazer.bsky.social 🔗 chemrxiv.org/doi/full/10....
chemrxiv.org
From sequences and structures to fitness, folding and function: challenges in the age of AI | ChemRxiv
Deep-learning models have transformed our ability to predict the phenotypic effects of sequence perturbations. Protein language models (pLMs) score the evolutionary propensity of any amino-acid substi...
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Ezequiel Galpern @eag91.bsky.social · 31/08/2026
1/2 🚀 We just uploaded our new review to arXiv: “Dark energy: the cost of function in protein evolution” With Federico Caamaño, @nachoquique.bsky.social & @diegulise.bsky.social 🔗 arxiv.org/abs/2608.27711
arxiv.org
Dark energy: the cost of function in protein evolution
The evolutionary fate of proteins is driven by both folding stability and biological function, dual constraints that often conflict, creating frustration and imposing functional costs beyond stability...
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Reposted by Ezequiel Galpern
Atlas of Variant Effects Alliance @varianteffect.bsky.social · 10/08/2026
@eag91.bsky.social was recently the 100th speaker of our Variant Effects Seminar Series. The work he presented has just been published as a preprint. Learn more: tinyurl.com/mrxf5zxv @solersanchisx.bsky.social, @cwjpugh.bsky.social, @federicobilleci.bsky.social, @jonnyfrazer.bsky.social
lnkd.in
Blending physics-based models improves protein folding stability prediction | Ezequiel Galpern posted on the topic | LinkedIn
🎉 New preprint: “Blending physics-based and inverse folding models to disentangle variant effects on stability and function” ➡️ Read it on https://lnkd.in/dCDw-3nb Together with Xavier Soler Sanchis...
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Ezequiel Galpern @eag91.bsky.social · 08/08/2026
🚨 Paid MSc research opportunity at CRG Barcelona! With Mafalda Dias and @jonnyfrazer.bsky.social, we’re hosting a 4-month MSc project: 🧬 “Folding versus function: disentangling the molecular mechanisms of missense variants in gene-trait associations” More info 👇 www.crg.eu/en/content/t...
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Ezequiel Galpern @eag91.bsky.social · 05/08/2026
1/ New preprint! with @solersanchisx.bsky.social @cwjpugh.bsky.social @federicobilleci.bsky.social @jonnyfrazer.bsky.social and Mafalda Dias, we introduce a scalable framework to improve stability prediction and separate folding from functional constraints. www.biorxiv.org/content/10.6...
biorxiv.org
Blending physics-based and inverse folding models to disentangle variant effects on stability and function
Protein sequences are constrained not only by the need to fold into stable structures, but also by specific functional requirements imposed by natural selection. Yet predictions of how amino-acid chan...
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Reposted by Ezequiel Galpern
Atlas of Variant Effects Alliance @varianteffect.bsky.social · 12/06/2026
At last week's Variant Effects Seminar (VESS), @eag91.bsky.social discussed disentangling the biophysical effect of missense variants using protein dark energy. If you missed it, you can now watch it on our YouTube channel at a time to suit you. ⏯️ youtu.be/je5XosFTLPY
youtu.be
Disentangling the biophysical effect of missense variants using protein dark energy - E. A. Galpern
YouTube video by Variant Effects
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Jonathan Frazer @jonnyfrazer.bsky.social · 01/06/2026
Mafalda has been shortlisted for the 2026 Premio Vanguardia de la Ciencia, one of the more visible science prizes in Spain. Her interview: www.lavanguardia.com/vanguardia-d... ...and we would be very grateful if you could vote here: www.lavanguardia.com/vanguardia-d...
lavanguardia.com
La IA mejora el estudio de las enfermedades raras
Vota a las finalistas del premio Vanguardia de la Ciencia
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Atlas of Variant Effects Alliance @varianteffect.bsky.social · 20/05/2026
Our Variant Effect Seminar Series is marking a milestone! Join us on Tuesday, June 2, for our 100th speaker, Ezequiel Galpern. Plus, special VESS guests, as we celebrate and look forward to the next 100 speakers! Join here: www.varianteffect.org/seminar-seri... #AtlasOfVariantEffects
The image shows celebratory fireworks in shades of green and has the text "Milestone at the mic: 100 VESS speakers. June 2, 2026. It also details the presenter (Ezequiel Galpern) with a photo and title of his talk.
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Ezequiel Galpern @eag91.bsky.social · 01/04/2026
Why are there 20 amino acids and 4 nucleotides? Combining Energy Landscape and Molecular Information theories provides constraints to the alphabet size of an evolving biopolymer, given its physico-chemical properties... Read more in our new article: www.nature.com/articles/s41...
nature.com
An information-theoretic argument for the restriction of the current biological alphabets to 4 nucleotides and 20 amino acids - Scientific Reports
Life as we know it is based on foldable biopolymers encoded with just 4 nucleotides or 20 amino acids. Evolution of these biopolymers requires effective and fast search of both the conformational spac...
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Ezequiel Galpern @eag91.bsky.social · 03/03/2026
elixir-europe.org/events/3d-bi... Next week!
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Ezequiel Galpern @eag91.bsky.social · 22/01/2026
"Probing the Dark Energy in the Functional Protein Universe" is now published in @pnas.org 🎉 www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Ezequiel Galpern @eag91.bsky.social · 06/11/2025
Our method for predicting folding dynamics/mechanisms from sequence info is now a book chapter! link.springer.com/book/9781071... @diegulise.bsky.social
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Reposted by Ezequiel Galpern
Jonathan Frazer @jonnyfrazer.bsky.social · 23/10/2025
Applications are open for the @crg_eu PhD Programme! 20 fully funded positions — including one in our group through the Evolutionary Medical Genomics ITN. Join us to develop deep generative models of cross-species data to tackle open questions in disease genetics. www.crg.eu/en/content/t...
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Ezequiel Galpern @eag91.bsky.social · 12/08/2025
❗New Preprint w/ C Bueno (‪@cabb99.bsky.social‬), IE Sánchez (@nachoquique.bsky.social‬), PG Wolynes & DU Ferreiro (@diegulise.bsky.social‬) We define the Protein Dark Energy and use it to localize and quantify the functional evolutionary constraints on natural proteins arxiv.org/abs/2508.08109
arxiv.org
Probing the Dark Energy in the Functional Protein Universe
We show how to localize and quantify the functional evolutionary constraints on natural proteins. The method compares the perturbations caused by local sequence variants to the energetics of the prote...
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Ezequiel Galpern @eag91.bsky.social · 15/07/2025
Finally published! “Inferring protein folding mechanisms from natural sequence diversity” Open acces link: authors.elsevier.com/a/1lQvh1SPTB... @biophysj.bsky.social A new chapter of an amazing project w/ @diegulise.bsky.social and Ernesto Roman 1/n
authors.elsevier.com
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Martin Ezequiel Farina @profe-hallucigenia.bsky.social · 09/03/2025
Investigadores que estudian el universo desde Argentina. Mi colaboración de hoy para Viva www.clarin.com/viva/detecti...
clarin.com
Los detectives espaciales que desde Argentina buscan entender el Universo
Se destacan en radioastronomía, astrobiología, física y geología planetaria. Quiénes son los científicos locales que buscan descifrar el Cosmos.
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Reposted by Ezequiel Galpern
Nacho Sánchez @nachoquique.bsky.social · 13/01/2025
En ciencia no hay preguntas pequeñas, pero igualmente divierte investigar con @diegulise.bsky.social y Ezequiel Galpern por qué hay 20 aminoácidos en las proteínas y 4 nucleótidos en el ARN doi.org/10.1590/SciE...
doi.org
Why are there 20 amino acids and 4 nucleotides?
Evolution of folded biopolymers requires effective and fast search of both the conformational space for folding and the sequence space for evolution. Molecular information theory and energy landscape theory show that the alphabet size of extant proteins and RNA is just enough to fulfill these requirements, given the constraints posed by the chemical physics of these polymers. Empirical estimations of the size of the effective sequence and conformational spaces of natural biopolymers support the theoretical predictions.
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