Aude Bernheim

Aude Bernheim

@audeber.bsky.social

PI at Institut Pasteur Evolution, immunity, genomics, microbiolgy. Into immunity in bacteria and its conservation in eukaryotes. Advocate for more inclusive sciences https://mdmlab.fr/

3.4K followers449 following221 posts

Aude Bernheim reposted

Much of the functional biology encoded in genomes remains hidden in noncoding DNA. In a preprint out today, Patrick Hsu and team introduce COMPASS, a genomic language model-based approach to systematically map this underexplored sequence space.

Aude Bernheim reposted

New preprint from my Post-Doc in the Swarts lab How are the guide RNAs generated that direct prokaryotic Argonautes to invading DNA? This has been an open question for >10 years. Our new study reveals that the host housekeeping enzyme RNase E is responsible! A 🧵: 1/14

📚🦠 J'ai une petite passion pour les bactéries, mais surtout j’adore faire de la recherche fondamentale ! Pour partager cette joie avec le grand public francophone, j’ai écrit un court ouvrage qui sort aujourd’hui : Mille milliards de vies invisibles, édité par @premierparallele.bsky.social !

Aude Bernheim reposted

1/5 Telomerase has long been linked to chromosome maintenance in eukaryotes. Now, we show that telomerase-like activity is also present in bacteria, shedding new light on its ancient origins. Excited to share that our work on DRT10 is now out in @nature.com! www.nature.com/articles/s41...

nature.comAntiviral immunity via telomerase-like reverse transcription in bacteria - NatureNature - Antiviral immunity via telomerase-like reverse transcription in bacteria

A dream conference!! I love the city of Cambridge, so going there to discuss Bacterial immunity is really going to be a incredible experience.

Gemma C. Atkinson@gemmaatkinson.bsky.social

Heads up! The Symposium on the Immune System of Bacteria 2027 is now open for registrations! 20-22nd July 2027, Churchill College, University of Cambridge, UK Places are limited, so register soon. Visit the website to see our fantastic line-up of speakers: sisb2027.info #phage

Aude Bernheim reposted

Heads-up! I’ll be starting my research group at MedUni Vienna in January 2027, with postdoc and PhD positions available soon. Looking for people interested in bacteria–phage interactions, bacterial defense systems, and phage anti-defense strategies. Please send your CV: anna.lopatina@univie.ac.at

Aude Bernheim reposted

Our story with @hobbslabutah.bsky.social discovering CBASS sensing of phage proteases out now in @science.org New data include CBASS recognition of diverse proteases beyond T4, and verifying CD-NTase activation loop cleavage as the trigger for defense in vivo www.science.org/doi/10.1126/...

science.orgPhage proteases activate CBASS antiphage immunityCyclic oligonucleotide–based antiphage signaling systems (CBASS) are bacterial immune pathways evolutionarily related to cGAS-STING (cyclic GMP-AMP synthase–stimulator of interferon genes) in humans. ...
Kranzusch Lab@kranzuschlab.bsky.social

After >10 years of our lab studying bacterial cGAS-like enzymes, @hobbslabutah.bsky.social finally reconstitutes viral sensing in vitro and discovers how these ancient receptors sense phage protease enzymes to detect virion assembly and activate antiviral immunity www.biorxiv.org/content/10.6...

Aude Bernheim reposted

Aude Bernheim reposted

Aude Bernheim reposted

Aude Bernheim reposted

Four days ago, a scientist was surprised by the news that Anthropic discovered new virus genes for making DNA. He says he’s been studying them for years—and feeding his data to Anthropic’s AI as part of his own research. Coincidence? Here’s my story. nyti.ms/3VSWayc

nyti.msDid Anthropic’s A.I. Really Make a Scientific Discovery on Its Own? (Gift Article)An expert at the University of Copenhagen said his team had been sharing its research with the company’s A.I. model, Claude, and that its new finding matched their work.

Really great work !

Maya Voichek@mayavoichek.bsky.social

Super excited to share my postdoctoral work at @imbavienna.bsky.social @viennabiocenter.bsky.social - We discovered that some retrotransposons, or "jumping genes" 🧬, are able to spread from cell to cell via a new viral infectivity route. A short thread: 🧵👇 (1/7)

Aude Bernheim reposted

Can you tell how an antibiotic kills bacteria just by watching them under a regular microscope — without any dyes ? Yes, it turns out, at least if you are a deep neural net.

Some really cool microbiology!!! Congrats everyone 👏

Simonetta Gribaldo@sgribaldo.bsky.social

Interested in #archaea, #methane, #cell-envelopes? New paper out @nature.com ! We discovered an enzyme that specifically cleaves the cell wall of methanogens, revealing a new chemical structure of archaeal peptidoglycan, 50 yrs after its first description www.nature.com/articles/s41... #MicroSky 🧵👇

Aude Bernheim reposted

Aude Bernheim reposted

Insights into longevity & virus-driven adaptation from Myotis bat genomes International & fantastic collab. with @psudmant.bsky.social @denard.bsky.social Labs ! Major credit to the 2 leading scientists: Juan Vazquez & @lauterbur.bsky.social now with their own labs! You 2 rock! (1/n)

nature.comInsights into longevity and virus-driven adaptation from Myotis bat genomes - NatureComparative and functional analyses of Myotis bats uncover unique patterns of adaptation in virus-interacting proteins and longevity-associated pathways, linking two hallmarks of bat biology.
CIRI Lyon@ciri-lyon.bsky.social

Félicitations à Lucie Etienne et son équipe, soutenue par le CNRS IRP RAPIDvBAT, le CNRS IRC Univ. Arizona et le CNRS MITI, pour leurs travaux sur la longévité et l’adaptation induite par les virus à partir des génomes de chauves-souris Myotis. 💡: www.nature.com/articles/s41....

Aude Bernheim reposted

So happy to share that this work is finally out, now in @nature.com! Lots of new goodies since preprint so plz check it out (old thread below). Giant thank you to everybody involved + all @savitski-lab.bsky.social and @typaslab.bsky.social lab members 🙏🙏🙏 @embl.org nature.com/articles/s41...

nature.comPervasive phosphorylation by phage T7 kinase disarms bacterial defences - NatureThe T7 bacteriophage deactivates bacterial defence systems through T7K phosphorylation of nearly all host and phage proteins during infection.
Tara Bartolec@tarabartolec.bsky.social

1/11 - With Karin Mitosch and Clément Potel + colleagues in Savitski lab and @typaslab.bsky.social @embl.org, I’m very happy to share our discovery of a hyper-promiscuous phage protein kinase (T7K) which broadly deactivates bacterial defenses! 🦠 www.biorxiv.org/content/10.1...

Aude Bernheim reposted

Today we are excited to introduce you to PanDA 🐼🐼🐼, a newly uncovered antiphage system!! Attendees at @SISB2026 would have heard a little about this from graduate student Ali Nabhani back in May, but we are now out here in preprint form and delighted to share more of the details. (Thread below)

biorxiv.orgMinimal diadenylate cyclases have been co-opted to detect phage immune evasionMany bacterial immune defenses transmit recognition of phage infection via the generation of diverse cyclic nucleotide second messengers. Phage have evolved to subvert this kind of immunity by sequest...

Aude Bernheim reposted

Aude Bernheim reposted

The shared principles of human and bacterial antiviral immunity An honor to highlight remarkable discoveries from many labs over the past 12 years that unite previously disparate fields of how animal cells and prokaryotes defend against viruses. www.nature.com/articles/s41... rdcu.be/fzwyB

nature.comShared principles of human and bacterial antiviral immunity - NatureThe Review describes shared ancient, conserved mechanisms between human antiviral immunity and bacterial anti-phage systems, outlining universal principles of pathogen sensing, signalling and effector...

Aude Bernheim reposted

DNA glycosylases are repair enzymes, essential to all cellular life. They find chemically damaged bases and remove them so DNA can be repaired. Today in Nature Microbiology, we show bacteria have repeatedly repurposed them into antiviral immune systems 🧵 www.nature.com/articles/s41...

nature.comAntiviral defence is a conserved function of diverse bacterial DNA glycosylases - Nature MicrobiologyDNA glycosylases, typically used for DNA repair, can also protect bacteria against phages that would otherwise evade host immunity by incorporating modified bases into their genomes.

Aude Bernheim reposted

Come work on exciting AI for biology projects in Paris!! 🇫🇷 Details and application below, deadline sept 1st!

Antigen Evolution & Design Lab@antigenevo.bsky.social

🚨 JOB ALERT🚨 We are very excited to be hiring the lab's ✨very first postdoc✨! Work on new AI technologies for decoding antigen protein evolution in a fresh research environment, at the heart of Paris 🇫🇷 Details & link to apply: research.pasteur.fr/en/job/postd... Deadline: Sep 1st

Fantastic work from a brand new lab :)! Amazing to see the same folds being used by pathogens across the tree life! Congrats Jason and all authors.

Jason Nomburg@jnoms.bsky.social

Happy to share the first preprint out of the Nomburg lab! Many aspects of cellular immunity are shared across the tree of life. Here, we show that some of these conserved aspects of cellular immunity are mirrored by conserved effectors of immune antagonism. Thread below! 1/15

Aude Bernheim reposted

Happy to share the first preprint out of the Nomburg lab! Many aspects of cellular immunity are shared across the tree of life. Here, we show that some of these conserved aspects of cellular immunity are mirrored by conserved effectors of immune antagonism. Thread below! 1/15

bioRxiv Microbiology@biorxiv-microbiol.bsky.social

Conserved folds enable immune antagonism across the tree of life https://www.biorxiv.org/content/10.64898/2026.07.21.739742v1

Whie exact chemistry and molecular mechanism remain to be resolved, this work connects two fields: bacterial immunity and natural products. It shows that BGCs can encode intracellular antiphage defenses and points to a much larger antiviral chemical space that remains to be explored.

7/10 15 independent escapers, isolated from 4 phages, carried mutations in homologs of the same phage-encoded GNAT acetyltransferase. Interaction experiments further connected lanthivirin precursor with phage GNAT and DNA primase. The GNAT therefore appears central to lanthivirin sensitivity.

Our current model is that the matured lanthivirin interacts with a phage-encoded GNAT and the phage DNA primase, and may act as a molecular glue that could lock them in a non-productive complex, thereby blocking phage DNA replication.

The biosynthetic chemistry is essential for the antiviral activity. Deleting the LanB-like dehydratase or LanC-like cyclase abolished defense. So did mutations in conserved residues predicted to form the lanthionine rings. Lanthivirin maturation is required for antiviral activity.

How do they work? Lanthivirins do not detectably harm the host, trigger cell death, or block phage adsorption. They act after entry: phage DNA accumulation drops early, followed by reduced phage transcripts, proteins, and particle production.

3/10 We combined antiSMASH and DefenseFinder predictions across 29,401 actinobacterial genomes. One clade of class I lanthipeptide clusters was strongly enriched near known defense systems. It contains >2,000 systems across diverse Actinobacteria. We named them lanthivirins

Genomics gave us candidates; then came a lot of Streptomyces work, thx to a lot of collaborators for helping us with that! Six diverse lanthivirin systems protected against phages in heterologous hosts. In S. coelicolor, activating cryptic lanthivirin cluster reduced phage titers by 10^4.

How many more are out there ? To answer this, we needed a scalable method. Of course, we turned to genomics 💻❤️ Our starting idea was simple: antiphage systems cluster in defense islands. Could biosynthetic gene clusters found in the same genomic regions also contribute to bacterial immunity?

Aude Bernheim reposted

Aude Bernheim reposted

Excited to share that our Metis story is now published in Science! 🎉 Bacteria can sense phage-induced degradation of their genome and activate immunity. Many thanks to everyone who contributed to this work. 📄 www.science.org/doi/10.1126/... More details in my earlier thread 🧵⬇️

science.orgBacteria sense virus-induced genome degradation via methylated mononucleotidesPhages often degrade the genome of their bacterial host to individual nucleotides. Here we describe Metis, a bacterial defense system that directly senses phage-mediated host genome degradation. Metis...
Osterman Ilya@ostermanilya.bsky.social

Bacteria can sense when a virus starts shredding their genome — by detecting methylated mononucleotides. Here’s the story of how we discovered the Metis defense system 👇 www.biorxiv.org/content/10.1...

Aude Bernheim reposted

Gabija restricts phage circularization & DNA replication Gabija prevents phage genome circularization & replication w/out impacting bacterial host. Exposed DNA ends & phage end-binding proteins license DNA targeting while RecBCD protects host from Gabija www.cell.com/cell-host-mi...

cell.comGabija restricts phage circularization and DNA replicationGabija acts early during phage infection, preventing phage genome circularization and replication. Phage DNA end-binding proteins prevent RecBCD loading onto linear DNA, and the absence of RecBCD lice...

Aude Bernheim reposted

Thrilled to share our collab led by Grace Hibshman with the Shipman lab! Type IX retron-Kva2 structure reveals phage detection via an HTH fold, not a primary sequence. We computationally designed triggers that program bacteria cell death, pointing toward designer antimicrobials.

Aude Bernheim reposted

A family of lanthipeptides with anti-phage function Discovery of 2,000+ lanthipeptide biosynthetic gene clusters with anti-phage potential. Lanthivirins inhibit phage replication by targeting phage proteins & interfering with phage DNA replication. www.cell.com/cell-host-mi...

cell.comA family of lanthipeptides with anti-phage functionShomar, Guillaume, et al. report the genomics-driven discovery of a family of more than 2,000 lanthipeptide biosynthetic gene clusters with anti-phage potential. They experimentally demonstrate anti-p...

Aude Bernheim reposted

🔬 Meet Spyros Lytras, one of our new G5 group leaders! Using AI to predict viral protein evolution, he's designing vaccines for strains that don't yet exist. No more waiting for threats to emerge—be ready ahead of time. The future of pandemic preparedness. 🧬 📖 www.pasteur.fr/en/research-...

pasteur.frPredicting viral evolution with AISpyros Lytras is one of four young scientists selected in 2025 to lead new research groups at the Institut Pasteur. He has headed the “Antigen Evolution & Design laboratory” 5-year Group (G5) since Ju...

Fantastic study tackling a new aspect of bacterial immunity: defense against conjugation ! Added bonus: Mesopotamian deities are fascinating, a good reason to dive again into this civilisation.

Xavier Charpentier@labxc.bsky.social

#microsky New preprint from the lab! Widespread immune systems protect bacteria against conjugative plasmids www.biorxiv.org/content/10.6... Kudos to the extremely talented lead author Ludovic Poiré! Key contributions by @francoisrousset.bsky.social and also help from C. Lesterlin/TacC lab. 🧵⬇️