Exciting news:
Our RNA community in @uniregensburg.bsky.social is set to grow!
We are opening a Junior Group Leader position in RNA biochemistry / ribonucleases / RNA stability. A great opportunity to start your own team within our collaborative RNA network.
Details & application π
04.03.2026 12:21 β
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Thank you, Luuk! π₯³
20.02.2026 01:58 β
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Thanks, Arturo!! π€
20.02.2026 01:57 β
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Thank you, Rafa!! π₯
19.02.2026 12:48 β
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Thanks Jack! π»
19.02.2026 10:50 β
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Structure and mechanism of antiphage retron Eco2 - Nature Structural & Molecular Biology
This study shows how the bacterial retron Eco2 defends against viruses. Phage nucleases trigger activation of Eco2, which cuts RNAs, shuts down protein production and stops phage replication.
Now that @mftorresj.bsky.social & I are based at VU Life Sciences Center (one of the birthplaces of CRISPR tech) our publication portfolio gets extra diverse thanks to our phylogenetics & data vis skills. Here's one collaboration with @patrick-pausch.bsky.social:
doi.org/10.1038/s415...
19.02.2026 09:53 β
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6/6) Big thanks and congrats to Monika Jasnauskaite et al. for their relentless work π€π€! On Bluesky: @jjuozapaitis.bsky.social @mftorresj.bsky.social @evogytis.bsky.social @bangebalcony.bsky.social @ingasongailiene.bsky.social. Shout out to our funders @erc.europa.eu, @embo.org, @dfg.de, and LMT.
19.02.2026 10:37 β
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5/6) Activated Eco2 cuts RNA promiscuously, with a preference for some tRNAs. This activity efficiently shuts down protein production for antiphage defense πͺ, likely by abortive infection.
19.02.2026 10:37 β
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4/6) For activation of Eco2's TOPRIM, the phage-encoded DNA nuclease DenB degrades the DNA three-way junction. Upon DNA decay, the TOPRIM active sites are exposed to the solvent and poised for substrate destruction βοΈ.
19.02.2026 10:37 β
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3/6) Using cryo-EM, we reveal how the DNA-product of Eco2's RT enzyme regulates the TOPRIM nuclease by formation of a DNA three-way junction βοΈβοΈβοΈ.
19.02.2026 10:37 β
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2/6) We show that Eco2 defends against multiple phage families, demonstrating its broad activity π. Escapers indicate that phage-encoded DNA nucleases trigger Eco2.
19.02.2026 10:37 β
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Structure and mechanism of antiphage retron Eco2
Nature Structural & Molecular Biology - This study shows how the bacterial retron Eco2 defends against viruses. Phage nucleases trigger activation of Eco2, which cuts RNAs, shuts down protein...
1/6) Hot off the press @natsmb.nature.com π₯! Jasnauskaite et al. reveal how the minimal bacterial retron Eco2 defends against #phage π‘οΈ. Phage nucleases trigger Eco2, which cuts RNA, shuts down protein production and stops phage replication π¦ π«. #phagesky #immunity #microbiology #cryo-em rdcu.be/e4AyH
19.02.2026 10:37 β
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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...
18.02.2026 18:24 β
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π£new preprint from the phagefoundry.org team π Jessica Trinh and Catherine Mageeney (Sandia National Laboratories)!!
Systematic analysis of prophages from ~1000 Acinetobacter baumannii isolates, induction & screening. We found this π looking phage with bunch of ππ
18.02.2026 03:26 β
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Get in, dorks. We're ready for round two.
RALLY TO TAKE BACK SCIENCE! π¬π§ͺβ
March 7th, 2026 in Washington, DC
Learn more at www.standupforscience.net/ma... (link in our bio.)
28.01.2026 17:00 β
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πHIRI has opened a new call to recruit Group Leaders. If you are interested in opening an RNA Biology and Infection lab, join us! Deadline: February 15. More info here π
28.01.2026 15:06 β
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We are looking for a junior group leader in RNA biology to join us in WΓΌrzburg at the @helmholtz-hiri.bsky.social !
A generous funding package, a great collaborative environment, and a beautiful city are all included :)
Deadline for application is Feb 15; more information below π
28.01.2026 09:28 β
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To those American academics out there who have chosen to remain silent/mostly silent about the horror going on in the USA these days at every corner of the federal government, please start speaking out and fighting back.
25.01.2026 04:33 β
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π Excited to share that Iβve been awarded an EMBO Installation Grant to establish my research group at the EMBL Partnership Institute, Vilnius University Life Sciences Center! The grant provides β¬50,000/year for 5 years to build an internationally competitive lab and advance genome editing research.
20.01.2026 15:30 β
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This work constructed a large library of 406 vectors that individually express nearly every protein from 6 phages. We hope this resource will be broadly useful to the field and have deposited a version at Addgene (ID 249629). It should be available soon!
18.01.2026 22:45 β
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A methylome-derived m6-dAMP trigger assembles a PUA-Cal-HAD immune filament that depletes dNTPs to abort phage infection
Bacteria must distinguish phage attack from normal homeostatic processes, yet the danger signals that trigger many defence systems remain unknown. Here, we show that a PUA-Calcineurin-CE-HAD module from Escherichia coli ECOR28 confers broad anti-phage protection by binding Dam-methylated deoxyadenosine monophosphate (m6-dAMP) generated during phage-induced chromosome degradation. Ligand binding converts a preassembled PUA-Calcineurin-CE hexamer loaded with six HAD phosphatases into a polymerising filament. The filament acts as a high-flux dNTP sink through a two-enzyme cascade: HAD first dephosphorylates dATP to dADP, and Calcineurin-CE then converts dADP to dAMP. dNTP collapse halts phage replication and enforces abortive infection. Multiple mobile-element DNA mimic proteins block filament assembly, revealing a direct phage counter-defence. More broadly, our findings extend a conserved, cross-kingdom paradigm of immune filament assembly to nucleotide-depletion antiviral defence and suggest modified-nucleotide sensing by related PUA-Calcineurin-CE modules as a widespread, underappreciated bacterial strategy. ### Competing Interest Statement The authors have declared no competing interest. NIHR Southampton Biomedical Research Centre, https://ror.org/01qqpzg67, Postdoctoral Bridging Fellowship F.L.N. is supported by a Wessex Health Partners (WHP) and National Institute for Health and Care Research Wessex Experimental Medicine Network (NIHR WEMN), Seed fund National Institutes of Health, GM145888, U24 GM129539) Maloris Foundation Memorial Sloan Kettering Cancer Center, P30-CA008748 Simons Foundation, SF349247 New York State Assembly
Preprint out: We characterise PUA-Cal-HAD, a widespread bacterial antiphage defence family. An infection cue switches a preassembled complex into an immune filament that drains dNTPs via a coupled two-enzyme cascade, and phage DNA mimics can block filament assembly (anti-polymerisation).
17.01.2026 14:52 β
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LinkedIn
This link will take you to a page thatβs not on LinkedIn
π’ We are hiring π’ 1st round of recruiting for our ERC project BacImmune-Decode! @erc.europa.eu
We are looking for a postdoc for wet-lab work on regulation of phage defence systems in bacteria using high-throughput microbial genetics. Check it out: lnkd.in/es7AE968
#Hiring #Postdoc #Microbiology
14.01.2026 08:55 β
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Happy to share our recent preprint:
"DNA-intercalating antiphage molecules trigger abortive infection through mutual destruction and synergize with bacterial immunity"
www.biorxiv.org/content/10.6...
@spp2330.bsky.social, @mibinet.bsky.social, @dfg.de @hhu.de @fzj.bsky.social
14.01.2026 08:57 β
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Great to see it finally out! Congrats! :)
07.01.2026 21:22 β
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