Sadie Antine
@sadieantine.bsky.social
PhD in Virology Harvard Kranzusch Lab Alum
Huge congratulations Sam @sgfern.bsky.social !!! Amazing work!
Kranzusch Lab@kranzuschlab.bsky.social · 2mo agoHow do human cells defend against viruses? @sgfern.bsky.social discovers that human immune proteins named ISGs target ancient features of replication shared between animal and bacterial viruses – opening analysis of human immunity to the power of bacterial genetics www.biorxiv.org/content/10.6...
How do human cells defend against viruses? @sgfern.bsky.social discovers that human immune proteins named ISGs target ancient features of replication shared between animal and bacterial viruses – opening analysis of human immunity to the power of bacterial genetics www.biorxiv.org/content/10.6...
New research in @natmicrobiol.nature.com by @aragucci.bsky.social of @danafarber.bsky.social’s @kranzuschlab.bsky.social highlights the mechanistic diversity of nuclease-NTPase systems in bacterial immunity and provides a resource for others studying these systems. ➡️ bit.ly/4sVD0CH
Out Now! Nuclease–NTPase antiphage defence systems use conserved molecular features to control bacterial immunity #MicroSky
Nuclease–NTPase antiphage defence systems use conserved molecular features to control bacterial immunity
Nature Microbiology, Published online: 27 April 2026; doi:10.1038/s41564-026-02312-8A large-scale, comparative cell biology and biochemical screen defines the molecular features controlling antiphage defence systems that encode nuclease effectors and accessory NTPase proteins.
go.nature.com
Congratulations to @aragucci.bsky.social and @sadieantine.bsky.social for their nuclease-NTPase work now online in final form at @natmicrobiol.nature.com www.nature.com/articles/s41...
Nuclease–NTPase antiphage defence systems use conserved molecular features to control bacterial immunity - Nature Microbiology
A large-scale, comparative cell biology and biochemical screen defines the molecular features controlling antiphage defence systems that encode nuclease effectors and accessory NTPase proteins.
nature.com
Kranzusch Lab@kranzuschlab.bsky.social · last yr.Starting the lab Bluesky account to share a preprint from @aragucci.bsky.social and @sadieantine.bsky.social that reveals molecular principles shared across diverse nuclease-NTPase anti-phage defense systems in bacterial immunity (1/7) www.biorxiv.org/content/10.1...
🎉Excited to share our new preprint! TIR domains from diverse animals, including human TLR4, are catalytically active and produce cyclic ADP-ribose (cADPR). This enzymatic activity is widespread in animals and conserved across the tree of life. www.biorxiv.org/content/10.6...
biorxiv.org
CBASS is a cyclic nucleotide-based antiviral system in bacteria that is related to cGAS-STING signaling in animals. One of the big questions is how CBASS is activated during phage infection? We made some progress on this during my final year in the Kranzusch lab. www.biorxiv.org/content/10.6...
biorxiv.org
1/5 Happy by a recent biorxiv pre-print about DARNA (PD-T7-3) anti-phage defense system. This system is activated by binding to ssDNA, presented by phage SSB, to cleave tRNA in the anti-codon loop. www.biorxiv.org/content/10.6...
I am incredibly honored to receive this recognition from the Michelson Medical Research Foundation for our work on innate immune signaling. www.michelsonmedicalresearch.org/news/michels...
Michelson Medical Research Foundation Awards $750,000 to Rising Immunology Leaders
Michelson Medical Research Foundation (MMRF) is proud to announce the eighth cohort of recipients of its 2026 Michelson Prizes: Next Generation Grants , naming five early-career scientists whos...
michelsonmedicalresearch.org
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...
The giant viruses surprised us at almost every turn of this project, but ultimately led us down a very rewarding path. Happy to share this work is now available online 🧪
Cell - a Cell Press journal@cp-cell.bsky.social · 6mo agoNow online! Giant DNA viruses encode a hallmark translation initiation complex of eukaryotic life
Hello world! I am excited to announce my lab is open at the University of Utah in the Department of Biochemistry. We are looking for scientists at all levels interested in studying host-virus interactions in both bacteria and animals. Come join us in beautiful Utah! (photo is 10 steps from lab)
ExoSloNano: nanogold probe-based labeling of proteins in live cells for cryo-ET and CLEM. @lindseynyoung.bsky.social @thevillalab.bsky.social www.nature.com/articles/s41...
ExoSloNano: multimodal nanogold labels for identification of macromolecules in live cells and cryo-electron tomograms - Nature Methods
The ExoSloNano system facilitates nanogold probe-based labeling of specific proteins of a wide range of sizes in live cells for cryo-electron tomography and correlative light and electron microscopy s...
nature.com
I’m happy to share our new preprint! We uncovered the full diversity of bacterial TIR-based antiviral immune signaling, massively expanded the known diversity of Thoeris systems, and revealed conservation of TIR-derived immune signals across the tree of life. www.biorxiv.org/content/10.6...
Systematic discovery of TIR-based immune signaling systems in bacteria
Toll/interleukin-1 receptor (TIR) domains are important for immune signaling across humans, plants and bacteria. These domains were recently found to produce immune signaling molecules in plant immuni...
biorxiv.org
🌟 WeINSPIREBio is hosting its first event! On Dec 4, we’re running a webinar: Structures of Success: Career Journeys of Women in Structural Biology If you work in SB, drug discovery, or just like hearing career stories from brilliant people, join us! And please share 🙏🏼 lnkd.in/ewjD5WPt #cryoEM
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...
Mysteries of trafficking of the vRNP segmented genome and assembly of influenza A virus revealed by in situ cryo-ET! 🔗 rdcu.be/eMmct We are very excited that our paper is finally out! 🎉 Big congratulations to Moritz Wachsmuth-Melm and to everyone involved.
🚨 Systems Virology Journal Club – 8th Series! 🚨 #BillSchneider and I are delighted to announce another round of cutting-edge talks in #SystemsVirology! 🦠💡 Join us and an outstanding lineup of speakers, starting Oct 30. Free registration: shiraweingartengabbay.com/systems-viro... 🔬✨
Thank you to the Blavatnik Family Foundation and The New York Academy of Sciences for honoring our research uniting human innate immunity and bacterial anti-phage defense at @danafarber.bsky.social @harvardmicro.bsky.social @harvard.edu bit.ly/4pZUDkF blavatnikawards.org/news/items/t...
Our story describing the Panoptes bacterial immune defense system is now finally peer-reviewed and published today! www.nature.com/articles/s41...
The Panoptes system uses decoy cyclic nucleotides to defend against phage - Nature
The Panoptes antiphage system defends bacteria by detecting phage-encoded counter-defences that sequester cyclic nucleotide signals, triggering membrane disruption and highlighting a broader strategy of sensing immune evasion through second-messenger surveillance.
nature.com
Are viruses capable of regulating protein synthesis in the nuanced way of cellular organisms? Kinda! I’m excited to share some of my postdoc work that leveraged giant DNA viruses to address this question.
Giant DNA viruses encode a hallmark translation initiation complex of eukaryotic life
In contrast to living organisms, viruses were long thought to lack protein synthesis machinery and instead depend on host factors to translate viral transcripts. Here, we discover that giant DNA virus...
biorxiv.org
Huntingtin binds and bundles F-actin! Thrilled to team up with the Humbert (Sorbonne Université) and Song (KAIST) labs on this discovery. We had a blast doing cryo-ET on this unexpected complex — and now so many new questions lie ahead! #TeamTomo #CryoET #HTT #actin doi.org/10.1126/scia...
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/...
Very happy to share that I will be starting my lab at AITHYRA in October! My lab will use structural bioinformatics and functional genomics to understand the function of viral proteins, with a special emphasis on understanding how viruses subvert innate immunity.
AITHYRA Research Institute of the Austrian Academy of Sciences@aithyra.bsky.social · 12mo agoWelcome JASON NOMBURG! With great pleasure we announce that Jason Nomburg is one of the Starting Principal Investigators LS who will join AITHYRA in October 2025. Jason wants to understand the function of proteins in the virome. More information: www.oeaw.ac.at/aithyra/rese... #AITHYRA #StartingPI
How can we understand the earliest events in evolution of eukaryotic immunity? @yao-li.bsky.social reports incredible molecular fossils of complete bacterial-like operons in eukaryotes that illuminate how animal immunity was first acquired from anti-phage defense www.biorxiv.org/content/10.1...
Excited to share our new @natmicrobiol.nature.com paper revealing the most complete arenavirus glycoprotein complex (GPC) structures to date 🤩 www.nature.com/articles/s41...
Molecular organization of the New World arenavirus spike glycoprotein complex - Nature Microbiology
Cryo-EM structures of the full-length Junin virus and Machupo virus spike glycoprotein complexes stabilized in the prefusion conformation. Analyses reveal features that regulate glycoprotein pH-depend...
nature.com
First preprint from the Nemudryi Lab! 🍾 In this work, we link antiviral immunity in bacteria and humans by showing that homologs of human Schlafen nucleases protect bacteria from phages. www.biorxiv.org/content/10.1...
Bacterial Schlafens mediate anti-phage defense
Human Schlafen proteins restrict viral replication by cleaving tRNA, thereby suppressing protein synthesis. Although the ribonuclease domain of Schlafen proteins is conserved across all domains of lif...
biorxiv.org
Many components of human immunity evolved from ancient pathways in bacteria. A beautiful story from @audeber.bsky.social @enzopoirier.bsky.social leverages this evolutionary connection to discover SIRal as a signaling protein in animal TLR-mediated innate immunity. www.science.org/doi/10.1126/...
A human homolog of SIR2 antiphage proteins mediates immunity via the Toll-like receptor pathway
Key actors of mammalian immunity originated from bacterial antiphage systems. The full extent of immune system conservation between bacteria and eukaryotes is unknown. Here, we show that the silent in...
science.org
A new preprint led by Sonomi Yamaguchi in our lab describes a bacterial anti-phage defense system named Clover that uses nucleotide signals to both activate and inhibit host immunity. www.biorxiv.org/content/10.1...
