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Anna Kanevskaya

@annakanevskaya.bsky.social
183 followers 351 following 25 posts

Postdoc🇫🇷, bacterial defense systems

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Reposted by Anna Kanevskaya
Kranzusch Lab @kranzuschlab.bsky.social · 01/10/2026
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.org
Phage proteases activate CBASS antiphage immunity
Cyclic 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. ...
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Reposted by Anna Kanevskaya
Martin Pacesa @martinpacesa.bsky.social · 21/09/2026
ʙɪɴᴅᴄʀᴀꜰᴛ2 is out, and we're not waiting for the paper. The full code drops today, free for academic and industry use. We're releasing it early so you can start designing right now, and bring its full power to the current Adaptyv competition. github.com/PacesaLab/Bi...
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Reposted by Anna Kanevskaya
Malcolm White @mfwhite2.bsky.social · 16/09/2026
Our paper on type II Panoptes is now published at PLOS Biology with new data on phage escapers - quite a step up in microbiology for our lab, led by Sabine Gruschow. Thanks to @erc.europa.eu for funding dx.plos.org/10.1371/jour...
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Anna Kanevskaya @annakanevskaya.bsky.social · 08/09/2026
🤩
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Anna Kanevskaya @annakanevskaya.bsky.social · 08/09/2026
Amazing work by my colleagues!
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Reposted by Anna Kanevskaya
Itai Yanai @itaiyanai.bsky.social · 31/08/2026
Nobel Prize winner Ada Yonath sadly passed away today. She was a legend for her pioneering work on the structure of ribosomes.
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Reposted by Anna Kanevskaya
Savitski Lab @savitski-lab.bsky.social · 20/08/2026
1/5 How much phosphorylation can a single kinase deposit? In our new study with @typaslab.bsky.social out in @nature.com, phage T7's kinase (T7K) modifies almost all the E. coli proteome + more densely than all ~500 kinases do our own proteomes 🤯 www.nature.com/articles/s41...
nature.com
Pervasive phosphorylation by phage T7 kinase disarms bacterial defences - Nature
The T7 bacteriophage deactivates bacterial defence systems through T7K phosphorylation of nearly all host and phage proteins during infection.
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Reposted by Anna Kanevskaya
Ben Morehouse @benmorehouse.bsky.social · 12/08/2026
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.org
Minimal diadenylate cyclases have been co-opted to detect phage immune evasion
Many 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...
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Reposted by Anna Kanevskaya
bioRxiv Microbiology @biorxiv-microbiol.bsky.social · 12/08/2026
Minimal diadenylate cyclases have been co-opted to detect phage immune evasion www.biorxiv.org/content/10.64898/20…
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Reposted by Anna Kanevskaya
Rafael Pinilla-Redondo (Rafa) @rafomics.bsky.social · 21/07/2026
1/4 Every good defence needs a backup! 🛡️⚔ Out now in @natrevmicro.nature.com our Comment on "𝗶𝗺𝗺𝘂𝗻𝗲 𝘀𝗮𝗳𝗲𝗴𝘂𝗮𝗿𝗱𝗶𝗻𝗴"! 🎉 🔗 www.nature.com/articles/s41...
nature.com
Immune safeguarding as a conserved principle of antiviral defence - Nature Reviews Microbiology
All organisms defend against viral infections through active immunity mechanisms that clear the virus or population-level mechanisms that cause regulated cell death. Recent research increasingly shows...
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Reposted by Anna Kanevskaya
Petr Skopintsev @petrskopintsev.bsky.social · 17/07/2026
Proud to present our work, published today in @science.org! My deepest gratitude to @isabelesain.bsky.social, @evandeturk.bsky.social, Jennifer and our collaborators in the Doudna, Cate, Banfield, and Jacobsen labs, and the @innovativegenomics.bsky.social! I hope you enjoy reading it! ✨
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Reposted by Anna Kanevskaya
Cell - a Cell Press journal @cp-cell.bsky.social · 03/07/2026
Now online! A viral ORFeome library for systems-level genetic dissection of host-pathogen interactions
dlvr.it
A viral ORFeome library for systems-level genetic dissection of host-pathogen interactions
A scalable library of ∼13,000 barcoded viral open reading frames from >500 viral species enables functional genomic screens across the virome. Applying this platform identified viral regulators of cellular proliferation, antigen presentation, and interferon signaling. This platform enables systematic exploration of viral protein function.
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Reposted by Anna Kanevskaya
Di Jiang @dijiang319.bsky.social · 21/05/2026
Ancient wars between microbes gave us key immune defenses | @science.org | AAAS www.science.org/content/arti... #microsky #virosky #immunosky
science.org
Ancient wars between microbes gave us key immune defenses
A better understanding of battles between bacteria and viruses could inspire new medicines
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Reposted by Anna Kanevskaya
Mart Krupovic @mkrupovic.bsky.social · 11/05/2026
With Eugene Koonin, we wrote a rather comprehensive review on the origin, evolution and organization of the #virosphere. We describe all 10 viral realms and the logic behind them, and so much more. Check it out! comptes-rendus.academie-sciences.fr/biologies/ar...
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Reposted by Anna Kanevskaya
Tera Levin @teralevin.bsky.social · 02/05/2026
Bacterial immune proteins have repeatedly evolved to become parts of eukaryotic immunity. But how? Our new preprint uncovers a recent horizontal transfer event & shows how eukaryotes co-opted a toxic bacterial immune protein 🦠🧪🧵 1/
Microscopy image showing yeast cells expressing a fluorescently tagged version of the amoeba TirC protein. TirC forms filaments that span the yeast cells.
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Reposted by Anna Kanevskaya
Malcolm White @mfwhite2.bsky.social · 16/03/2026
New preprint: Cyclic tri-adenylate signalling by a Panoptes anti-phage guard system with a CARF-TM effector. Great work led by Sabine Grüschow www.biorxiv.org/content/10.6...
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Reposted by Anna Kanevskaya
Osterman Ilya @ostermanilya.bsky.social · 03/03/2026
Ribosome centric perspective on the evolution of life. @mkrupovic.bsky.social and Eugene Koonin arxiv.org/abs/2602.23268
arxiv.org
The selfish ribosome
The ribosome is responsible for protein synthesis in all cells, and is the largest energy consumer in the cell. We propose that the ribosome originated as a mutualistic symbiont of an RNA-dependent RN...
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Anna Kanevskaya @annakanevskaya.bsky.social · 01/12/2025
Our SPARHA story is out in Nature Communications! doi.org/10.1038/s414... We investigated a new short pAgo-HNH defense system, showing that it assembles into filaments degrading cellular DNA, inducing abortive infection, resolved their structure, and uncovered the activation mechanism 🧵
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Kranzusch Lab @kranzuschlab.bsky.social · 16/10/2025
Perfect timing in the field for a beautiful review on NAD+ in bacterial immunity by @hugovaysset.bsky.social and @audeber.bsky.social @cp-molcell.bsky.social #MicroSky www.cell.com/molecular-ce...
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Kranzusch Lab @kranzuschlab.bsky.social · 25/09/2025
You’ve heard of ubiquitination, meet deazaguanylation: Doug Wassarman in our lab discovered phage defense pathways have co-opted Q nucleobase biosynthetic enzymes to catalyze a new form of protein conjugation chemistry @science.org www.science.org/doi/10.1126/...
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Dr. Julie Claycomb @farmgirlphd.bsky.social · 26/08/2025
Excited for the start of #argonautes2025 tomorrow! This year we're in Prague, @imgprague.bsky.social. Looking forward to sharing science and community with Argonaute aficionados and Argonaute Syndromes Alliance families! 🐙
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Anna Kanevskaya @annakanevskaya.bsky.social · 07/04/2025
News from the world of pAgos: We explored a distinct clade of short pAgos associated with HNH nuclease partners, which we named SPARHA, and discovered that they protect bacteria from phages and plasmids via abortive infection. Upon activation, SPARHA oligomerizes, forming filaments. A long 🧵
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Reposted by Anna Kanevskaya
Jack Bravo @jpkbravo.bsky.social · 16/03/2025
Very cool (and long-awaited) structures of the Lamassu/DdmABC defense system. Seems to be another weird TA-like system?
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François Rousset @francoisrousset.bsky.social · 28/02/2025
Wait... what !? 😱 A new family of RNA-guided systems in prokaryotes ! Mind-blowing !
science.org
TIGR-Tas: A family of modular RNA-guided DNA-targeting systems in prokaryotes and their viruses
RNA-guided systems provide remarkable versatility, enabling diverse biological functions. Through iterative structural and sequence homology-based mining starting with a guide RNA-interaction domain o...
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Reposted by Anna Kanevskaya
Aude Bernheim @audeber.bsky.social · 09/01/2025
What is the diversity of antiphage systems out there ? We used protein and genomic language models (and defense score!) to start bringing some answers: >45 000 protein families. Leb by E. Mordret. www.biorxiv.org/content/10.1... Interactive UMAP to have fun mdmparis.github.io/antiphage-la...
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