Peter Fineran
@peterfineran.bsky.social
Prof. and Head of Phage-host interactions (Phi) lab. Phage defences, counter-defences, CRISPR-Cas, toxin-antitoxin. FRSNZ / James Cook Fellow
Our paper is out in Nature Microbiology: functional analysis of 80 phage sponges, revealing new sponges that inhibit bac immunity by binding the immune signals cCMP, cUMP and N7-cADPR Thanks to all coauthors and our collaborators at the Kranzusch Lab. Congrats Romi! www.nature.com/articles/s41...
Functional diversity of phage sponge proteins that sequester host immune signals - Nature Microbiology
A functional screen reveals phage sponge proteins that bind Pycsar, Thoeris and CBASS signalling molecules to inhibit bacterial immunity.
nature.com
Romi Hadary@romihadary.bsky.social · 2mo agoExcited to see our work out in @natmicrobiol.nature.com! We uncovered broad functional diversity within phage sponge families🧽. Huge thanks to all coauthors and brilliant collaborators @kranzuschlab.bsky.social @reneechang.bsky.social ! www.nature.com/articles/s41...
(1/6) Thrilled to share this story! In our preprint from my PhD in the @kranzuschlab.bsky.social, with help from the Hatfull lab and @soreklab.bsky.social, we discover RyDEP, a phage-encoded RyR-domain glycosidase that allows phages to evade Thoeris defense. Highlights below! doi.org/10.64898/202...
A nice piece at @science.org covers the exploding field of bacterial immunity, and how it led to the understanding that components of the human immune system evolved from bacterial defenses against phage www.science.org/content/arti...
Ancient wars between microbes gave us key immune defenses
A better understanding of battles between bacteria and viruses could inspire new medicines
science.org
The paper on my Ph.D. work is fully online! We used a ribozyme that barcodes 16S rRNA to track the transduction range of phage P1 in a synthetic community and real wastewater communities, while diving deeper into the unique range conferred by P1s two tail fibers. www.nature.com/articles/s41...
Cross-order detection of bacteriophage transduction in microbial communities using RNA barcoding - Nature Communications
Bacteriophages are the most abundant life form on earth and can be applied to eliminate or engineer bacteria. Here, authors demonstrate RNA barcoding as a high throughput tool to measure bacteriophage...
nature.com
Happy to share our latest pre-print on the Druantia defense system. We find that Type III Druantia uses a cooperative helicase-nuclease mechanism to sense and degrade replication-associated forked DNA structures. www.biorxiv.org/content/10.6... A🧵
biorxiv.org
1/9 New preprint from the Sternberg Lab in collaboration with the Nishimasu Lab! We uncover how the DRT3 antiphage immune system pairs two reverse transcriptases, one RNA-templated and one protein-templated, to build a double-stranded DNA effector. doi.org/10.64898/202...
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 !
Raphael Laurenceau@raphael-microb.bsky.social · 4mo ago🔈Paper out! We turned the most fascinating phage host-switch mechanism, diversity-generating retroelements, into a programmable mutagenesis tool, DGRec. You can perform targeted hypermutation of any 50-200bp sequence directly in vivo in E. coli www.nature.com/articles/s41...
📣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.
Last day to apply
Peter Fineran@peterfineran.bsky.social · 5mo agoNew post-doctoral research position in my phage-host interactions (Phi) laboratory in @otagomicroimmuno.bsky.social at @universityofotago.bsky.social New Zealand. The project is focused on defences against jumbo phages. Please share and if interested apply using the link in the comments.
www.linkedin.com/posts/peter-...
A great day on Monday visiting Monash University Biomedicine Dicovery Institute to give a seminar and talk with the fantastic researchers there. Francesca Short, Trevor Lithgow, Gavin Knott, Jeremy… |...
A great day on Monday visiting Monash University Biomedicine Dicovery Institute to give a seminar and talk with the fantastic researchers there. Francesca Short, Trevor Lithgow, Gavin Knott, Jeremy Ba...
linkedin.com
Out now–our work on bacterial cGAS-like enzymes making 2′,3′-cGAMP! Read Uday's thread for updates since the preprint including determining our lab's first protein structure and developing a new system to study bacterial STING homologs in phage defense👇
Uday Tak@snowkaryote.bsky.social · 4mo agoHappy to share the final version of my postdoc work on bacterial CBASS immunity with @aaronwhiteley.bsky.social published in @cp-cellhostmicrobe.bsky.social www.cell.com/cell-host-mi...
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...
Only 9 days left to apply for this post doctoral position. Please share and forward to your colleagues.
Peter Fineran@peterfineran.bsky.social · 5mo agoNew post-doctoral research position in my phage-host interactions (Phi) laboratory in @otagomicroimmuno.bsky.social at @universityofotago.bsky.social New Zealand. The project is focused on defences against jumbo phages. Please share and if interested apply using the link in the comments.
Great fun presenting some of our research @otagomicroimmuno.bsky.social @universityofotago.bsky.social Including transposon mutagenesis of phages. www.biorxiv.org/content/10.6...
High-throughput transposon mutagenesis defines the essential genome of diverse phages
Phages are important drivers of bacterial evolution with therapeutic potential as antimicrobials. However, gaps in our understanding of phages and our inability to rapidly engineer them with new genetic cargo hinders progress towards phage-based therapies. To address the lack of unbiased, genome-wide mutational tools for phages, we developed transposon mutagenesis employing CRISPR-anti-CRISPR (Acr)-based selection and deep-sequencing (Phage Tn-seq). Transposon mutagenesis was effective for phages with unmodified or hypermodified genomes and a jumbo phage that protects its DNA within a nucleus. Phage Tn-seq enabled phage gene essentiality assignment consistent with structural proteomics and core gene conservation. Insertion biases allowed prediction of transcriptional direction and early injected phage DNA regions. We exploited the method to rapidly deliver new cargo to phage genomes in just a few days and used an AI-designed Acr to expand the phage transposon toolbox. Phage Tn-seq is a versatile tool to advance our understanding and applications of phages. ### Competing Interest Statement The authors have declared no competing interest. Royal Society Te Apārangi, https://ror.org/04tajb587 Alexander von Humboldt Foundation, https://ror.org/012kf4317 The L’Oréal Groupe Australia University of Otago, https://ror.org/01jmxt844
biorxiv.org
Asaf Levy@asaflevylab.bsky.social · 5mo agoArabinose isn't only an inducer! @peterfineran.bsky.social gave a talk in our Hebrew Univ. microbiology journal club and mentioned his recent amazing finding that some phages add up to 3 arabinoses (!!) to their DNA to evade bacterial defense. Mahler et al. CHM 2025 www.cell.com/cell-host-mi...
Join us for the first Rangahau Rising of 2026 with Dr Nils Birkholz (University of Otago). Nils will talk about his research on the plant pathogen Pectobacterium, highlighting new solutions for targeting problematic bacterial pathogens. 📍 Online, Register via Zoom: zurl.co/FLQvS
New post-doctoral research position in my phage-host interactions (Phi) laboratory in @otagomicroimmuno.bsky.social at @universityofotago.bsky.social New Zealand. The project is focused on defences against jumbo phages. Please share and if interested apply using the link in the comments.
New post-doctoral research position in my phage-host interactions (Phi) laboratory in @otagomicroimmuno.bsky.social at @universityofotago.bsky.social New Zealand. The project is focused on defences against jumbo phages. Please share and if interested apply using the link in the comments.
Congratulations to Sonomi Yamaguchi for her paper at @nature.com. Sonomi discovered Clover defense and explained how nucleotide signals control each step of viral sensing, immune regulation, and viral restriction – named for her beautiful "four-leaf" structures 🍀 www.nature.com/articles/s41...
It’s been a fun first few week of my sabbatical. Many exciting meetings w/ @peterfineran.bsky.social lab, learning new stuff and brainstorming ideas. And my own lab has been off to a crazy great start to the year. The early/late zoom meetings have me burning the candle at both ends…
🔬 iVoM 2026 Online Conference Series – Session 1: Viral Biotechnologies 🗓 28 Jan 2026 ⏰ 17:00 CET | 11:00 EST | 08:00 PST • Intro by a senior researcher • 3 ECR talks • Live Q&A 👉 Register for links & updates: 🔗 docs.google.com/forms/d/1hAB... #iVoM #VoM2026 #Virology #ECRs #OnlineEvent
@peterfineran.bsky.social and colleagues develop Tn-seq for phages by leveraging anti-CRISPR (Acr) as a positive selectable marker in the presence of CRISPR-Cas counter-selection, and identify essential genes in phage from non model orgs www.biorxiv.org/content/10.6...
✨New preprint! 🧵1/4 Excited to share our work on AI-guided design of minimal RNA-guided nucleases. Amazing work by @petrskopintsev.bsky.social @isabelesain.bsky.social @evandeturk.bsky.social et al! Multi-lab collaboration @banfieldlab.bsky.social @jhdcate.bsky.social @jacobsenucla.bsky.social🧬 🔗👇
🚨Preprint alert - this is a big one! We transfer the revolutionary power of TnSeq to bacteriophages. Our HIDEN-SEQ links the "dark matter" genes of your favorite phage to any selectable phenotype, guiding the path from fun observations to molecular mechanisms. A thread 1/8
📣 Fully funded PhD opportunity - CryoEM, Phage Biology & Structural Mechanisms University of Sheffield, UK | Start Oct 2026 We’re looking for a motivated student to uncover how bacteriophage proteins shut down drug-resistant Enterococcus bacteria.
YBDTP – BBSRC Yorkshire Bioscience Doctoral Training Partnership
yorkshirebiosciencedtp.ac.uk
Hot off the press! Our latest paper led by @fernpizza.bsky.social, understanding how plasmids evolve inside cells. These small, self-replicating DNA circles live inside bacteria and carry antibiotic resistance genes, but also compete with one another to replicate. 1/ www.science.org/doi/10.1126/...
Intracellular competition shapes plasmid population dynamics
From populations of multicellular organisms to selfish genetic elements, conflicts between levels of biological organization are central to evolution. Plasmids are extrachromosomal, self-replicating g...
science.org
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...
