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Andy Posbe

@adnroide.bsky.social
160 followers 147 following 21 posts

PhD student at @TheSainsburyLab.bsky.social working on NLR bioengineering and computational prediction of immune receptor activities w/ @KamounLab.bsky.social . 🇦🇷🏳️‍🌈 (he/him)

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Reposted by Andy Posbe
Sophien Kamoun @kamounlab.bsky.social · 14/09/2026
We just published: Fold on Tight — 10 lessons on AI structure prediction Andy Posbe @adnroide.bsky.social turned our ten lessons on AI structure prediction into a thread. Here it is, one lesson at a time. kamounlab.medium.com/fold-on-tigh...
kamounlab.medium.com
Fold on Tight — 10 lessons on AI structure prediction
Andy Posbe turned our ten lessons on AI structure prediction into a thread. Here it is, one lesson at a time.
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Andy Posbe @adnroide.bsky.social · 11/09/2026
No one remembers authorising this firmware update
Five researchers hold freshly printed immune receptor structures while the office Ricoh continues production, despite nobody remembering authorising this feature.
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Reposted by Andy Posbe
Alex McClelland @alexjmcclelland.bsky.social · 11/09/2026
Very pleased to have contributed to this concise, digestible overview of AI structure prediction! I think this is a great resource for newbies and experienced AlphaFold users alike. Happy Folding!
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Interface confidence scores ipSAE: github.com/DunbrackLab/IPSAE pDockQ: gitlab.com/ElofssonLab/FoldDock LIS: github.com/flyark/AFM-LIS
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Andy Posbe @adnroide.bsky.social · 10/09/2026
(3/3) RoseTTAFold All-Atom: github.com/baker-laboratory/RoseTTAFold-All-Atom RF3: github.com/RosettaCommons/foundry ESMFold: github.com/facebookresearch/esm ESMFold2: github.com/Biohub/esm
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Andy Posbe @adnroide.bsky.social · 10/09/2026
(2/3) Chai-1: github.com/chaidiscovery/chai-lab and lab.chaidiscovery.com Protenix: github.com/bytedance/Protenix and protenix-server.com OpenFold: github.com/aqlaboratory/openfold OpenFold3: github.com/aqlaboratory/openfold-3
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Structure predictors (1/3) AlphaFold 2 + Multimer: github.com/google-deepmind/alphafold ColabFold: github.com/sokrypton/ColabFold AlphaFold 3: alphafoldserver.com and github.com/google-deepmind/alphafold3 Boltz-2: github.com/jwohlwend/boltz
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Finally, we apologise to colleagues whose excellent work we could not include because of space limitations. Thank you to the community whose discoveries made these ten lessons possible! 🙏
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 10 — Develop a Strategy to Stay Up to Date The field moves fast! Follow developers and structural biology communities for new tools and practical tips. Interpret predictions alongside evolutionary and experimental evidence. Full review: zenodo.org/records/2210...
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 9 - Structural Modeling Can Guide Protein Engineering From prediction to design! 🛠️ Interfaces can guide changes that transfer recognition, restore function or create new connections. Combined with binder design, they can help build new immune receptor specificities.
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 8 — When Predictions Deviate from Canonical Models What if the model is telling us something unexpected? Unusual assemblies or repeated failures can hint at different biology. Interpret outliers using existing evidence, then test them. 🔍
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 7 - Capture Touch-and-Go Complexes Brief encounters can have big consequences! AI models can help probe contacts that evade biochemical detection, suggesting how partners meet and which residues to test in the lab. 🧪
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 6 - AI Can Reveal Novel Protein–Protein Interactions From screening entire proteomes to identifying short binding motifs, modelling can uncover new partners and explain how they interact, generating testable hypotheses and guiding experimental discovery.
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 5 - You Can Never Benchmark Enough! A convincing model is a start. How does it compare with what we know? Include known interactors, non-interactors and solved structures as controls. Revisit these controls as tools change. 🧪
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 4 — Structural Similarity Can Reveal Hidden Relationships Proteins with no detectable sequence similarity can share a fold. Comparing predicted structures across families or proteomes can uncover connections that sequence searches miss. 🔍
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 3 — Model Your Proteins with Other Molecules Proteins have company! Lipids, nucleic acids, ions and ligands shape their biology. Including relevant partners can reveal interfaces and improve regions that are poorly modelled in isolation.
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Andy Posbe @adnroide.bsky.social · 10/09/2026
On tοοls and metrics 🧰 Aside from the lessons, we put together a table of what's currently available and what each tool and metric is actually for. Reproduced below. Links in the reply.
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 2 — Sample Multiple Seeds 🎲 How much depends on the seed? Repeat predictions to see which features hold and which vary. Consistency strengthens a hypothesis. Record seeds, model version, weights release and database version so others can reproduce the analysis.
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Lesson 1 — Don’t Ignore Confidence Metrics 🔍 A model can be uncertain overall yet reliable at the interface that matters. Read local and interface scores alongside global confidence to judge which parts support your biological hypothesis.
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Andy Posbe @adnroide.bsky.social · 10/09/2026
A pleasure to put this review together with @amiralito.bsky.social @alexjmcclelland.bsky.social @yusugihara.bsky.social @mpcontreras.bsky.social contreras.bsky.social and @kamounlab.bsky.social ! 🌱 Here are the ten lessons 👇
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Andy Posbe @adnroide.bsky.social · 10/09/2026
Excited to share Fold on Tight! 🎉 We distil recent advances in plant immunity into 10 lessons for using AI structure prediction critically and effectively, in plants and beyond. 📝 zenodo.org/records/2210...
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Reposted by Andy Posbe
Jiorgos Kourelis @jiorgoskourelis.bsky.social · 23/01/2026
📢 2 PhD Positions Available in Plant Immune Receptor Bioengineering at Imperial College London 🌱 Start: Oct 2026 📅 Deadline: 10 Feb 2026 🇬🇧 UK/settled status only 💰 Fully funded (48 months) ℹ️ Info: shorturl.at/po61I #PlantImmunity #PlantPathology #SyntheticBiology 🙏 Share with interested candidates!
imperial.ac.uk
PhD Opportunities | Faculty of Natural Sciences | Imperial College London
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Reposted by Andy Posbe
Clémence Marchal @clemmar.bsky.social · 03/12/2025
Excited to share our latest work on plant immune receptor biochemistry! @kamounlab.bsky.social @hsuanpai.bsky.social @mpcontreras.bsky.social Jose Salguero Linares @danielluedke.bsky.social @adnroide.bsky.social @jiorgoskourelis.bsky.social www.biorxiv.org/content/10.6...
CC-NLRs exhibit diverse conformations in the resting state.
Figure depicts different NLR resting and activated states. While ZAR1 exists as a monomer bound to its guardees in its resting state, several forms have been observed for the NRC2 helper, including dimers, tetramers, and filaments. While filament-like structures were observed via confocal microscopy for NRC2 upon overexpression in planta, these structures were not detected for its paralog NRC4, suggesting a potentially different resting state configuration for NRC4. Our work suggests that the Pik CC-NLR pair forms a hetero-complex bound to the plasma membrane in its resting state. How effector binding to the integrated domain (ID) of the Pik-1 sensor leads to the activation of the complex remains to be determined.
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Reposted by Andy Posbe
Sainsbury Laboratory Cambridge University (SLCU) @slcuplants.bsky.social · 03/11/2025
🎃✨ Pumpkin perfection! We were seriously impressed by the beautifully carved and brilliantly lit pumpkins from @thesainsburylab.bsky.social🕯️ We also got spiritedly competitive with our annual team pumpkin carving competition 😄🎃 Who knew plant scientists were such talented artists? 🪚🎃🌿
Collage of 13 pumpkins that have been carved in various designs and painted for the annual SLCU Pumpkin Carving Competition
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Andy Posbe @adnroide.bsky.social · 30/10/2025
Spooky season has arrived! 👻 We held our annual Pumpkin Carving Competition at @thesainsburylab.bsky.social —vote for your favourite carve! 🎃🕯️
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Reposted by Andy Posbe
Clémence Marchal @clemmar.bsky.social · 04/09/2025
Super excited and honoured to have been awarded an ERC Starting Grant for CooPAIRation! How do plant immune receptors work together to trigger an immune response? Can we modulate immune responses for disease resistance? We will tackle these questions in CooPAIRation Positions to be announced soon!
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Reposted by Andy Posbe
Josh Bennett @joshwbennett.bsky.social · 14/07/2025
Excited to attend my 1st ISMPMI conference, and present our work on a paired wheat CNL/MLKL receptor mechanism! 🌾 Come chat to me at my poster on Tuesday, P-050! 📜 If you miss my poster session, I will be talking in: Crop resistance genetics and genomics on Wednesday - 16:25-16:35!
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Reposted by Andy Posbe
Morgan Carter @morgancarterphd.bsky.social · 13/07/2025
Incredibly inspiring talk about the discovery of the more than 200 immune systems in bacteria by Rotem Sorek. From computational discovery in 2018 through functional and structural analyses, even linking bacterial immune systems to that of eukaryotes. #2025ISMPMI
A large conference stage with a man presenting with a power point slide showing a scientific figure about bacterial immunity
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Andy Posbe @adnroide.bsky.social · 09/07/2025
Pikobodies vs. Potato Blight 🥊🥔 NLR–Nanobody Fusions Take on P. infestans 💥 🎤 Talk: Thurs July 17th, 16:35 🧾 Poster P-64: Tues 15th, Session 2 Poster’s up on Zenodo if you’re into spoilers 👀📎 zenodo.org/records/1584... #2025ISMPMI #OpenMPMI🌿
zenodo.org
Pikobodies: NLR immune receptor-nanobody fusions can confer resistance to the potato blight pathogen Phythophthora infestans
Plant pathogens continuously evolve to evade immunity, driving the need for innovative resistance strategies to safeguard global food security. In proof-of-concept work, we engineered the rice nucleot...
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Reposted by Andy Posbe
Current Biology @currentbiology.bsky.social · 19/11/2024
You asked for it...
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Reposted by Andy Posbe
Marc Somssich @somssich.bsky.social · 19/12/2023
📜 Activation of plant immunity through conversion of a helper NLR homodimer into a resistosome 🧑‍🔬 Muniyandi Selvaraj, @kamounlab.bsky.social, @nlrpapi.bsky.social, et al. 📔 @biorxiv-plants.bsky.social 🔗 www.biorxiv.org/content/10.1... #️⃣ (Feeds) #PlantScience #PlantImmunity #PlantEffectors
biorxiv.org
Activation of plant immunity through conversion of a helper NLR homodimer into a resistosome
bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution
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Reposted by Andy Posbe
Angus Bucknell @ahbucknell.com · 26/10/2023
Great time at the TSL student/postdoc pumpkin carving social today! 🎃 📸 by Matt Wengler
25 carved pumpkins in a line lit with tea lights. The reflection of the pumpkins can be seen in the water of a pond in front of them.
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