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Laboratory of Chemical and Biological Probes

@locbp.bsky.social
1K followers 73 following 17 posts

Working at the interface of chemistry and biology at the University of Zurich. PI: Pablo Rivera-Fuentes

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Reposted by Laboratory of Chemical and Biological Probes
bioRxiv Biochemistry @biorxiv-biochem.bsky.social · 23/06/2026
Fluorescence Blinking Patterns Fingerprint the Local Protein Environment www.biorxiv.org/content/10.64898/20…
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Reposted by Laboratory of Chemical and Biological Probes
Computational and Structural Biotechnology Journal (CSBJ) @csbj.org · 09/06/2026
🔗BioPipelines: Accessible Computational Protein and Ligand Design for Chemical Biologists. Computational and Structural Biotechnology Journal (CSBJ). DOI: doi.org/10.34133/csb... 📚CSBJ - A Science Partner Journal: spj.science.org/journal/csbj @locbp.bsky.social @chem.uzh.ch #StructuralBiology #AI
🔗 BioPipelines: Accessible Computational Protein and Ligand Design for Chemical Biologists. Computational and Structural Biotechnology Journal (CSBJ). DOI: https://doi.org/10.34133/csbj.0129

📚 CSBJ - A Science Partner Journal: https://spj.science.org/journal/csbj
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 26/05/2026
Now pusblished: Biopipelines! The easiest way to set up (including through vibe coding) your protein design pipelines in an HPC or Google Colab! Chek out the paper (spj.science.org/doi/abs/10.3...) and the repo: github.com/locbp-uzh/bi...
spj.science.org
BioPipelines: Accessible Computational Protein and Ligand Design for Chemical Biologists | Computational and Structural Biotechnology Journal
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Reposted by Laboratory of Chemical and Biological Probes
Shinya Tsukiji @shinyatsukiji.bsky.social · 23/04/2026
Excited to share that our AzoTag paper is now out in @natchem.nature.com! 🥳 We demonstrate de novo chemo-optogenetics through the rational design of photoresponsive small molecules and selection of their artificial protein binding pairs. www.nature.com/articles/s41...
nature.com
De novo chemo-optogenetics through the rational design of photoresponsive molecules and selection of their artificial protein binding pairs - Nature Chemistry
Optical manipulation of proteins is central to modulating and characterizing biomolecular functions in cell biology, but tools based on natural proteins are difficult to reconfigure for desired photoc...
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 24/04/2026
We are hiring! We have a fully funded PhD position to study how the Golgi apparatus controls its redox potential. Please apply only through the link below. jobs.uzh.ch/job-vacancie...
jobs.uzh.ch
UZH: PhD Position in Redox Chemical Biology
We are a dynamic, interdisciplinary, medium-size lab working at the interface of chemistry and biology. We work on the development of probes to visualize and control biological processes in living sys...
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Reposted by Laboratory of Chemical and Biological Probes
Nature Chemical Biology @natchembio.nature.com · 01/04/2026
The Focus issues features views from redox biologists on the next frontiers and most needed developments in the field www.nature.com/articles/s41... Free to read link: rdcu.be/fbdwd
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 20/03/2026
Congratulations to our alumna Sarah Emmert, who received one of the GDCh Biochemistry Yound Scientist Awards! Here some of Sarah's work during her PhD at EPFL and @chem.uzh.ch: www.nature.com/articles/s41...
nature.com
A locally activatable sensor for robust quantification of organellar glutathione - Nature Chemistry
Fluorescent sensors that are responsive only in a specific subcellular location have remained elusive. Now, a chemogenetic sensing platform has been developed to sense glutathione in a user-defined or...
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 15/03/2026
Do you want to develop your own protein design pipelines using the latest tools, but do not know how to get started? That's why GianlucaQuargnali in our lab developed BioPipelines! Have a look at the preprint: www.biorxiv.org/content/10.6... and of course, the software: github.com/locbp-uzh/bi....
biorxiv.org
BioPipelines: Accessible Computational Protein and Ligand Design for Chemical Biologists
Deep learning methods for protein structure generation, sequence design, and structure and property prediction have created unprecedented opportunities for protein engineering and drug discovery. However, using these tools often requires navigating incompatible software environments, diverse input/output formats, and high-performance computing infrastructure, any of which may hinder adoption by primarily experimental chemical biology laboratories. Here we present BioPipelines, an open-source Python framework that allows researchers to define multi-step computational design workflows in a few lines of code. Additionally, its robust yet modular architecture provides a straightforward way to expand the toolkit with different functionalities, particularly by leveraging coding agents, with little effort. The framework currently integrates over 30 tools encompassing structure generation, sequence design, structure prediction, compound screening, and analysis. The same workflow code can be prototyped interactively in a Jupyter notebook and then submitted for production-scale runs without modification. We demonstrate applications in inverse folding, gene synthesis, de novo protein design, compound library screening, iterative binding site optimization, and fusion-protein linker optimization. We hope this framework will empower researchers, allowing them to focus on the scientific question rather than computational logistics. BioPipelines is available under the MIT license at https://github.com/locbp-uzh/biopipelines. ### Competing Interest Statement The authors have declared no competing interest. Swiss National Science Foundation, https://ror.org/00yjd3n13, 200021-236456
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Reposted by Laboratory of Chemical and Biological Probes
Deliz Liang lab @lab-adl.bsky.social · 19/02/2026
Still obsessed with histidine (and its mimics)! Our latest work from Benjamin 🎉 uses genetic code expansion—tuning the primary coordination sphere of a dizinc metallohydrolase—lowering the catalytic pKa and boosting activity up to 5x at acidic pH. Check it out! doi.org/10.1021/acs.biochem.5c00768
doi.org
Catalytic pKa Attenuation in a Hydrolytic Metalloenzyme by Genetic Code Expansion
Hydrolytic metalloenzymes employ Lewis-acidic metal cofactors to activate water molecules, generating nucleophilic hydroxide species that facilitate catalysis. Their catalytic efficiency across a wide...
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 21/01/2026
Congratulations to @dorotheakossmann.bsky.social! Her paper describing a novel sensor for bacterial pH just appeared online. Great collaboration with @ayaiizuka.bsky.social and Nina Khanna within the @nccr-antiresist.bsky.social! @chem.uzh.ch pubs.acs.org/doi/10.1021/...
pubs.acs.org
A Ratiometric pH Sensor for Gram-Positive and Gram-Negative Bacteria
Fluctuating environments can lead to phenotypic heterogeneity within a monoclonal bacterial population, especially in response to antibiotics or the human immune system. Methods are required to analyz...
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Reposted by Laboratory of Chemical and Biological Probes
Deliz Liang lab @lab-adl.bsky.social · 06/11/2025
They say the sincerest form of flattery is mimicry, and we really love histidine! ❤️ Check out our most recent work on histidine mimics: Genetic incorporation of diverse non-canonical amino acids for histidine substitution. www.biorxiv.org/content/10.1...
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 31/10/2025
We are hiring! Excited about redox chemical biology? Help us discover what controls the redox state of the Golgi apparatus. Also, please help us spread the word by reposting this ad. Apply here: jobs.uzh.ch/job-vacancie...
jobs.uzh.ch
UZH: PhD Position in Redox Chemical Biology
We are a dynamic, interdisciplinary, medium-size lab working at the interface of chemistry and biology. We work on the development of probes to visualize and control biological processes in living sys...
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Reposted by Laboratory of Chemical and Biological Probes
Stephan Hacker @stephanhacker2.bsky.social · 30/10/2025
How can we study target engagement and selectivity of covalent inhibitors? Which electrophilic probes are best suited to study a certain amino acid? Our study on "Profiling the proteome-wide selectivity of diverse electrophiles" is published in Nature Chemistry.(1/7) www.nature.com/articles/s41...
nature.com
Profiling the proteome-wide selectivity of diverse electrophiles - Nature Chemistry
Covalent inhibitors are powerful entities in drug discovery. Now the amino acid selectivity and reactivity of a diverse electrophile library have been assessed proteome-wide using an unbiased workflow...
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 15/10/2025
Congratulations to Doro for another presentation prize! This time for her talk at SCF ChemBio in Paris.
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Reposted by Laboratory of Chemical and Biological Probes
Department of Chemistry | University of Zurich @chem.uzh.ch · 08/10/2025
The @locbp.bsky.social @chem.uzh.ch developed a gene expression reporter system based on the coexpression of the protein of interest BiP/GRP78 and the reporter HaloTag. chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/...
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 15/09/2025
Congratulations to Hen (again)! Her paper, in collaboration with Jade, Juan, and the EPFL ACCESS team was just published. The paper describes a chemigenetic gene reporter tool for time-stamping and pulse-chase-type experiments. chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/...
chemistry-europe.onlinelibrary.wiley.com
Two‐Color Timestamping of Gene Expression with a Chemigenetic Reporter System
A chemigenetic reporter assay is developed that enables monitoring of BiP/GRP78 expression, an important chaperone and key regulator of the unfolded protein response. The system is based on the coexp....
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 12/09/2025
Congratulation's to Hen! Great job presenting her chemigenetic gene expression reporter system!
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 26/08/2025
Congrats to Juan! His discovery of hemicyanines as potent activators of paraptotic cell death has just been published! With great contributions from Jade (initial observations of ER swelling) and Craig (crucial supporting experiments)! pubs.acs.org/doi/10.1021/...
pubs.acs.org
Potent Inducers of Paraptosis through Electronic Tuning of Hemicyanine Electrophiles
Paraptosis is a distinct form of programmed cell death characterized by cytoplasmic vacuolization, mitochondrial swelling, and endoplasmic reticulum (ER) dilation, offering an alternative to apoptosis...
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 30/04/2025
Happy to share the results of a fun side project in which we used the COUPY dye and mutants of HaloTag7 to show that changes in fluorescence lifetime correlate with the polarity of the protein binding pocket! chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1... #FLIM #fluorescence #HaloTag
chemistry-europe.onlinelibrary.wiley.com
Fluorescence Lifetime Multiplexing with Environment‐Sensitive Chemigenetic Probes
HaloTag (HT) is a versatile self-labeling protein that has been widely adopted in fluorescence microscopy. Besides its established use as an intensity-based marker and sensor, interest in using HT fo....
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 07/04/2025
🚨Open PhD positions in chemical biology!🚨 Join us in developing chemigenetic probes for imaging and sensing. ⚗️🧫Experience in chemical synthesis and/or protein engineering? 🗻🇨🇭Love mountains, chocolate, and a safe, diverse, and engaging environment? Apply (or re-post)! jobs.uzh.ch/job-vacancie...
jobs.uzh.ch
UZH: PhD position in Chemical Biology
In the Laboratory of Chemical and Biological probes (PI: Pablo Rivera Fuentes), we do research at the interface of chemistry and biology, particularly in the fields of redox biology, development of im...
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Reposted by Laboratory of Chemical and Biological Probes
Deliz Liang lab @lab-adl.bsky.social · 17/03/2025
🚨 PhD Opportunity! Passionate about enzyme engineering or genetic code expansion? 🧬 Our lab is hiring a PhD student! 🔬 Exciting interdisciplinary research 🤝 Engaging environment 🌱 📄 Does this sound like you, apply now! ⏳🔗 📢 Know someone? Share this! 🔄 jobs.uzh.ch/job-vacancie...
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Reposted by Laboratory of Chemical and Biological Probes
Peter Stacko @pstacko.bsky.social · 25/02/2025
Looking for a PhD candidate to join my group at the University of Zurich If you are an excellent and motivated student🧑‍🔬and want to integrate organic synthesis, photochemistry and redox chemistry in a research🧪 we want to know more about you! More info: www.stacko.group Appreciate sharing the post.
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 20/02/2025
Now online at a peer-reviewed journal, Carla's careful characterization of the redox state of glutathione in the Golgi apparatus: www.sciencedirect.com/science/arti...
sciencedirect.com
Characterization of the Glutathione Redox State in the Golgi Apparatus
Redox homeostasis is crucial for cell function, and, in eukaryotic cells, studying it in a compartmentalized way is essential due to the redox variati…
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Reposted by Laboratory of Chemical and Biological Probes
Deliz Liang lab @lab-adl.bsky.social · 11/02/2025
Exciting news from the lab! Our first preprint, “Hydrophobic Tuning with Non-Canonical Amino Acids in a Copper Metalloenzyme” is now available. In this study, we rewrite the rules of enzyme engineering with a cyclic, hydrophobic twist that’s anything but ordinary. 🔍: www.biorxiv.org/content/10.1...
biorxiv.org
Hydrophobic tuning with non-canonical amino acids in a copper metalloenzyme
Hydrophobicity controls many aspects of protein and enzyme function. Although hydrophobic tuning can be achieved to a limited extent with canonical amino acids, the incorporation of non- canonical ami...
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 27/01/2025
Congratulations to @puentene.bsky.social, who won the best poster award at #SMPS24 @smps4.bsky.social!!
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Reposted by Laboratory of Chemical and Biological Probes
SMPS4 @smps4.bsky.social · 23/01/2025
Another brilliant session by Pablo Rivera-Fuentes from the University of Zurich on 'Single-Molecule Protein Identification using Blinking Patterns.' #SMPS4
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 09/12/2024
Just out on bioRxiv, Carla Miró reports the first quantitative determination of the redox state of glutathione in the Golgi apparatus. Spoiler alert: it is very oxidized and in relatively low concentrations! www.biorxiv.org/content/10.1...
biorxiv.org
Characterization of the Glutathione Redox State in the Golgi Apparatus
Redox homeostasis is crucial for cell function, and, in eukaryotic cells, studying it in a compartmentalized way is essential due to the redox variations between different organelles. The redox state ...
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 16/11/2024
👋
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Laboratory of Chemical and Biological Probes @locbp.bsky.social · 13/11/2024
Long overdue, we have left the propaganda machine formerly known as Twitter and will be posting exclusively here!
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