Nitrogenase, Biotic and Artificial Metalloenzymes, CO2 Fixation, Emmy Noether Research Group Leader

Joined September 2013
14 Photos and videos
Pinned Tweet
Our latest work on the nitrogenase-like methylthio-alkane reductase is now out @NatureCatalysis doi.org/10.1038/s41929-025-0… We biochemically and structurally characterized the methylthio-alkane reductase, a metalloenzyme that can produce ethylene from organic sulfur compounds.
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Johannes Rebelein retweeted
We are hiring a Biophysics professor. Have a look at jobs.rptu.de/jobposting/0f35…
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Great work by the Pierik and Netz group in identifying a new Fe/S protein.
We proudly present the birth of an in vivo and in vitro certified new Fe/S protein in eukaryotes: The function of Mak16 in ribosome biogenesis depends on its [4Fe-4S] cluster pnas.org/doi/10.1073/pnas.25…
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Johannes Rebelein retweeted
Very excited to finally share my PhD paper, about advancing #chloroplast #synbio through high-throughput plastome engineering of #Chlamydomonas. Huge thanks to the whole team! nature.com/articles/s41477-0…

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Johannes Rebelein retweeted
📣Final week to submit your abstract for the VAAM Annual Conference #VAAM2026 in Berlin Get your submission in before time runs out: Abstract Deadline 📆7 November – no extension! 🎓 VAAM student members: Travel grant application also until 7 Nov 📩submit: t1p.de/7fgc4
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Our latest work on the nitrogenase-like methylthio-alkane reductase is now out @NatureCatalysis doi.org/10.1038/s41929-025-0… We biochemically and structurally characterized the methylthio-alkane reductase, a metalloenzyme that can produce ethylene from organic sulfur compounds.
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This fantastic work was mainly done by Ana Lago Maciel as well as our collaboration partners @jessicacsfla, @Trematode12, @charliebuchanan, @TristanTiboReif, @frederikschmi, Stefano Lometto, Nicole Paczia, Jan M. Schuller, @DFlammingHansen, Gabriella T. Heller, Simone Prinz,
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@KaHochberg and @AJPierik. This work was done @mpi_marburg.
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An open position at my alma mater UCI in structural biology...
17 Oct 2025
Our home department of Molecular Biology & Biochemistry at UC Irvine is looking to hire a new tenure-track assistant professor in the broad area of structural biology. Come be our colleague! recruit.ap.uci.edu/JPF09887 Please apply and/or share this post! @UCIBioSci; @UCIrvine
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Johannes Rebelein retweeted
17 Oct 2025
Our home department of Molecular Biology & Biochemistry at UC Irvine is looking to hire a new tenure-track assistant professor in the broad area of structural biology. Come be our colleague! recruit.ap.uci.edu/JPF09887 Please apply and/or share this post! @UCIBioSci; @UCIrvine

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Sounds like a great tool!
PymolFold: A PyMOL Plugin for API-driven Structure Prediction and Quality Assessment 1. PymolFold is a novel PyMOL plugin that integrates state-of-the-art protein structure prediction models like ESM-3 and Boltz2 into the PyMOL visualization environment, creating a unified workflow for prediction, visualization, and analysis. This integration significantly lowers the technical barriers for experimental scientists who lack specialized hardware or computational expertise. 2. The plugin offers both graphical and command-line interfaces, providing flexibility for users with different preferences. It incorporates PXMeter for immediate quantitative benchmarking against reference structures, enabling researchers to validate their structural hypotheses directly within PyMOL. This streamlined workflow accelerates the pace of discovery in structural biology and drug design. 3. PymolFold supports monomer and multimer predictions through API access, eliminating the need for local deployment of complex models. Case studies across proteins of varying lengths and complexities demonstrate that Boltz2 without MSA offers the fastest predictions for most typical proteins, while ESM-3 is more efficient for very large or multi-domain proteins. These insights help users choose the optimal workflow based on their specific needs. 4. The plugin’s architecture ensures that PyMOL remains responsive during background tasks such as API calls. It uses a multi-processed, non-blocking design, allowing users to continue working while predictions are being processed. This responsiveness is crucial for maintaining an efficient workflow in a dynamic research environment. 5. PymolFold also excels in complex system prediction and validation. For example, it successfully predicted the structure of the immune checkpoint protein PD-1 bound to a therapeutic Fab antibody fragment, achieving highly accurate interface metrics. The entire process, from sequence input to quantitative analysis, was completed in just a few minutes, highlighting the practical utility of PymolFold for complex systems. 6. The plugin is freely available for academic use on GitHub, along with detailed installation instructions and documentation. This accessibility ensures that a wide range of researchers can benefit from the advanced structural modeling capabilities offered by PymolFold. 📜Paper: biorxiv.org/content/10.1101/… #PymolFold #ProteinStructurePrediction #StructuralBiology #DrugDesign #PyMOL #API #ComputationalBiology
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Johannes Rebelein retweeted
PymolFold: A PyMOL Plugin for API-driven Structure Prediction and Quality Assessment 1. PymolFold is a novel PyMOL plugin that integrates state-of-the-art protein structure prediction models like ESM-3 and Boltz2 into the PyMOL visualization environment, creating a unified workflow for prediction, visualization, and analysis. This integration significantly lowers the technical barriers for experimental scientists who lack specialized hardware or computational expertise. 2. The plugin offers both graphical and command-line interfaces, providing flexibility for users with different preferences. It incorporates PXMeter for immediate quantitative benchmarking against reference structures, enabling researchers to validate their structural hypotheses directly within PyMOL. This streamlined workflow accelerates the pace of discovery in structural biology and drug design. 3. PymolFold supports monomer and multimer predictions through API access, eliminating the need for local deployment of complex models. Case studies across proteins of varying lengths and complexities demonstrate that Boltz2 without MSA offers the fastest predictions for most typical proteins, while ESM-3 is more efficient for very large or multi-domain proteins. These insights help users choose the optimal workflow based on their specific needs. 4. The plugin’s architecture ensures that PyMOL remains responsive during background tasks such as API calls. It uses a multi-processed, non-blocking design, allowing users to continue working while predictions are being processed. This responsiveness is crucial for maintaining an efficient workflow in a dynamic research environment. 5. PymolFold also excels in complex system prediction and validation. For example, it successfully predicted the structure of the immune checkpoint protein PD-1 bound to a therapeutic Fab antibody fragment, achieving highly accurate interface metrics. The entire process, from sequence input to quantitative analysis, was completed in just a few minutes, highlighting the practical utility of PymolFold for complex systems. 6. The plugin is freely available for academic use on GitHub, along with detailed installation instructions and documentation. This accessibility ensures that a wide range of researchers can benefit from the advanced structural modeling capabilities offered by PymolFold. 📜Paper: biorxiv.org/content/10.1101/… #PymolFold #ProteinStructurePrediction #StructuralBiology #DrugDesign #PyMOL #API #ComputationalBiology
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Johannes Rebelein retweeted
I fear the public will never truly realize the immense damage done to our scientific research system and its consequences. A loss of ~$4.5 billion in frozen or cancelled grants with at least 148 impacted clinical trials = 138,000 patients due to be enrolled or already enrolled.
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Fantastic work by the Narayan Lab connecting enzyme sequence space and substrate diversity!
CATNIP for the win! Read our newest work with the Gomes group- doi.org/10.1038/s41586-025-0… @Apatoneh @gabepgomes @daniil_boiko @AlisonNarayanUM
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Johannes Rebelein retweeted
New molecular design absorbs 2 photons to store 2 positive and 2 negative charges 100 ns lifetime, 3 eV energy storage, and 37% quantum yield A step toward multi-electron photochemistry Mathis Brändlin and @BjornPfund in @NatureChemistry nature.com/articles/s41557-0…
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Johannes Rebelein retweeted
Klimaaufruf der DPG und DMG: Klimaforschende wenden sich an die deutsche Politik: Drei-Grad-Grenze könnte schon um 2050 erreicht werden; Klimaanpassung beschleunigen nachrichten.idw-online.de/20…
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Johannes Rebelein retweeted
A new preprint from the lab. I won't do a tweetorial until this is peer reviewed, but I think it's a banger, led by @JedNzy. It's about Rubisco and what chaperones are really for. He's on the market, get him while you can. biorxiv.org/content/10.1101/…
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Johannes Rebelein retweeted
Early-career scientists: here’s your chance to lead independent research!🌟Max Planck Research Groups offer 6 years, up to €2.7M in funding, open-topic freedom, team support & tenure-track opportunities. Intrigued? 😃Apply by Oct 14, 2025! mpg.de/career/max-planck-res…👉
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Johannes Rebelein retweeted
We currently have an open PhD position for an exciting enzyme engineering project! 🧬🦠🧪 We are trying to engineer new enzymes for nitrogen fixation - arguably one of the most important reactions of all! ward.chemie.unibas.ch/en/ope…
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Exciting work!
Check out our latest work now published in @angew_chem! By showing that natural PQQ-dependent dehydrogenases can be repurposed for enantioselective photoredox catalysis, we added a new enzyme class to the toolbox of photobiocatalysis… 💡🧫🧪 onlinelibrary.wiley.com/doi/…
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