Diversity-generating retroelements for programmable targeted hypermutagenesis - Nature Biotechnology Diversity-generating retroelements are engineered for directed evolution in E.coli.

Diversity-generating retroelements for programmable targeted hypermutagenesis - @dbikard.bsky.social @institutpasteur.bsky.social go.nature.com/3OG2nKN

Very proud of this work and all the efforts from my team and collaborators on this! You can now use DGRs for in vivo targeted hypermutagenesis in E. coli. We also included some early proof of concept in Yeast thanks to @seth-shipman.bsky.social !

Excited to share our new paper out today in @science.org 🎉

We show that HGT via natural competence drives diversification of chromosomal integrons in V. cholerae 🤩

Below a 🧵 on key findings incl. background on natural competence in V. cholerae 1/
#microsky #phagesky
www.science.org/doi/10.1126/...

Bravo Karen!

A big advance in the field of bacterial immunity, from the Bernheim and Laub labs

Phage receptor prediction from genome sequencing alone. Bacterial receptor (blue) interacting with phage proteins (purple) is shown here

📣Huge preprint 🔔
Today we share something our group has been working toward for a long time, led by @lucasmoriniere.bsky.social We asked can we predict which receptor a phage targets from its genome sequence alone? For most phages, we couldn’t. So Lucas set out to do something I had only dreamed of.

How diverse is bacterial immunity ?

We report in @science.org how language models allowed us to predict 2.4M antiphage proteins spanning >23K novel potential systems.
👏 @emordret.bsky.social, @alexhv.bsky.social & al doi.org/10.1126/scie...

Explore them here defensefinder.mdmlab.fr/wiki/refseq_...

How do you kill a MRSA superbug armed with 15 different anti-phage defense systems? You make a smarter phage. Check out our latest preprint on overcoming bacterial immunity using defense-guided engineering to build durable therapeutic phage cocktails! Led by Sarah Voss. doi.org/10.64898/202...

Molly Ingersoll: advocating for women's health and women's rights Molly Ingersoll has been head of a research team at the Institut Pasteur in Paris since 2012. This unfailingly optimistic microbiologist and immunologist is committed to revolutionizing our approach t...

Meet Molly Ingersoll, microbiologist & immunologist.
Her work shows how women and men can respond very differently to infections, and why sex-specific treatments are urgently needed.
She also speaks up about the invisible hurdles women face in science.
Follow her here @immunobladder.bsky.social

Today we report single-cell APEX-seq (scAPEX-seq)—a method for unbiased mapping of subcellular transcriptomes at single-cell resolution. It reveals cell states invisible to standard scRNA-seq and identifies regulators of CAR T function that improve solid tumor killing.

tinyurl.com/32pf6b8p

We are recruiting! If you are passionate about technology development, protein engineering, computational design, directed evolution, chemical biology - please reach out!
(The setting is pretty nice too…)

How can we tap into the enormous functional diversity of microbes on this planet?

Join us at EMBL Heidelberg (8–10 Dec 2026) to learn about ongoing efforts to decode gene function and organisation in human gut microbes, and present your science.

Genome modelling and design across all domains of life with Evo 2 - Nature Evo 2 is an artificial intelligence-based biological foundation model trained on 9 trillion DNA base pairs spanning all domains of life that predicts functional properties from genomic sequences and p...

Genome modelling and design across all domains of life - Evo2

A biological foundation model trained on 9 trillion DNA base pairs to predict the functional impacts of genetic variation

www.nature.com/articles/s41...

Out now! In collaboration with Leifu Chang, we uncover the molecular and structural underpinnings of CRISPR-Cas12f-like RNA-guided transcription systems!

Links to the published articles:
tinyurl.com/55kpavet
tinyurl.com/sk6djwx3

Previous thread for the preprint:
bsky.app/profile/did:...

Fantastic collaboration w/ @dbikard.bsky.social @audeber.bsky.social @rayanchikhi.bsky.social labs led by @jmouradesousa.bsky.social : We assessed the rates of variation of anti-phage systems in P4-like satellites and P2 helper phages. Quick conclusion: Huge variation! We focus on 4 key questions/5

➡️ preprint from the lab! Bacteria have loads of antiviral defences in their mobile genetic elements (MGEs). So when MGEs move between bacteria, the defences move with them, generating a fast turnover of defences in bacteria. But what about the antiviral defence turnover in the MGEs themselves? 🤔

🧵👇

Rapid modular evolution of antiviral repertoires in P2 phages and their P4 satellites: shuttling, swapping and mixing www.biorxiv.org/content/10.64898/2026.02...

🧵 Proud to present a tour de force by postdoc @gregbwhitfield.bsky.social solving the mystery of how bacterial Tad pili can extend and retract with a single motor ATPase. Great collaboration with Lynne Howell, @dr-lori-burrows.bsky.social, @ianyyen.bsky.social www.biorxiv.org/content/10.6...

SNIPE is a widespread bacterial defence system that exploits the spatial organization of phage genome injection to specifically target viral DNA, distinguishing self from non-self in prokaryotic immune systems @nature.com @mitpress.bsky.social
www.nature.com/articles/s41...

New preprint on Detectrons from @jihoon-han.bsky.social! These are programmable biosensors for RNA that produce DNA barcodes in the presence of their target RNA. Check out Jihoon's quoted thread and the preprint for more:
www.biorxiv.org/content/10.6...

Join us at the 2026 GRC Microbial Stress Response to be held on July 19th-24th at Mount Holyoke College!! Here is the link for more information: www.grc.org/microbial-st...

Postdoctoral position - Synthetic Biology / Bacterial Immunity - Research The Bikard lab at Institut Pasteur in Paris is seeking to hire postdoctoral researchers. We are investigating bacteria / bacteriophages interactions, and the genetic innovation that happens at this in...

🚨 Hiring Alert! 🚨My lab at Institut Pasteur is recruiting several Postdocs! We have exciting open projects in: 🦠 Synthetic Biology and🛡️ Bacterial Immunity. Come do great science with us in the middle of Paris! 🇫🇷🥐 research.pasteur.fr/en/job/postd...

Wow! Very cool.

@institutpasteur.bsky.social

Deadline is approaching (Feb 9) to apply for a PI position at Institut Pasteur. Come join us and contribute to an amazing scientific environment!!!

A phage protein screen identifies triggers of the bacterial innate immune system - Nature Microbiology A library of 400 phage protein-coding genes is used to find a trove of antiphage systems, revealing systems that target tail fibre and major capsid proteins.

I’m thrilled to share our work on phage triggers of the bacterial immune system in its final form @natmicrobiol.nature.com www.nature.com/articles/s41...

Also a big thanks to @cresslab.bsky.social and @therubinlab.bsky.social who came up with the idea to start this meeting and were instrumental in making it happen! And congratulations to @therubinlab.bsky.social and @paulwilmes.bsky.social for their elections as vice-chairs for the next one!

It was a true privilege to co-chair the inaugural GRC meeting on Microbiome Editing together with @jenniferdoudna.bsky.social . The positive energy and quality of the Science presented were truly inspiring. I look forward to the next one chaired by KC Huang and @omalleylab.bsky.social !!!

Conférence Scientifique Grand Public & Performance Artistique - "Virus contre bactéries : Une solution pour vaincre la résistance aux antibiotiques ?" - Pascale Cossart & Fabrice Hyber - Research L’Institut Pasteur vous ouvre ses portes et vous invite à une conférence scientifique pour le grand public, accompagnée d’une performance artistique ! Pascale Cossart parlera de virus et de bactéries,...

🦠🧫 Envie d'en savoir plus sur la Microbiologie et de découvrir l'Institut Pasteur ?

Rejoignez nous pour conférence scientifique grand public, accompagnée d’une performance artistique le 27 janvier à 18h! Inscrivez-vous :)

research.pasteur.fr/fr/event/con...