Schuller Jan

@schullerjm.bsky.social

Some bacteria do not live as individuals. They build multicellular filaments and connect neighboring cells through tiny cell-cell junctions. Cyanobacteria are among the most beautiful examples 😍 In our new paper, we reveal first molecuar insights on the cyanobacterial septal junction architecture 🧵

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Awesome work to determine the structure of a freakin 8MDa enzyme complex with over 600 FeS clusters! Sophia won the poster prize at the recent GRC C1 👏 www.nature.com/articles/s41...

Architecture of the 8 MDa Hdr–Vhu–Fwd super-assembly in class I methanogens - Nature

The structure of the Hdr–Vhu–Fwd super-assembly reveals a lineage-specific and modular 8 MDa complex with the ability to adapt to diverse anaerobic niches.

nature.com

ProLOEWE@proloewe.bsky.social · 4w ago

Huge discovery from Marburg: Prof. Schuller (@synmikro.bsky.social),doctoral stud. @sophia-pa.bsky.social+colleagues have resolved1️⃣of the🧬🔬largest enzymes. Published in Nature, the study shows how methanogenic archaea generate energy under extreme conditions, offering🆕insights into the🌎carbon cycle.

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New preprint No7 - molecular architecture of the carbonyl branch enzyme in methanogens. Basically all enzymes of the pathway linked in a super assembly (2 MDa). One would expect a cryoEM study, but we miserably failed, so we used true integrative structural biology. www.biorxiv.org/cgi/content/...

Interface swapping orchestrates carbon transfer in the archaeal acetyl-CoA decarbonylase/synthase

The Wood-Ljungdahl pathway is one of biology's most ancient routes for carbon fixation and energy metabolism, used by organisms such as methanogenic archaea. One of its central metabolic complexes is ...

biorxiv.org

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Okay the lab is now really living preprints to accelerate Science. It takes so long to publish a story in journals. So the only option to talk openly about our work are preprints. We currently have 6 preprints - check them out! More coming, one currently uploading and another one ready soon.

1/ Happy to share our preprint! The Mtr complex catalyses the second-to-last step of the methanogenesis and is an essential bioenergetic machine in most methanogenic archaea. Anaerobic cryo-EM of Mtr reveals a nitrogenase-like metallocluster bound at its active site! www.biorxiv.org/content/10.6...

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Super excited to launch this search for a new endowed professor at the @biozentrum.unibas.ch! Join us to build a research cluster in Climate Biophysics! 🌍🌊🌾🔬🧪 This is a unique opportunity to create a community in Basel🇨🇭working together on this timely topic! ⏳🌡️ Questions? Please reach out! 👩‍🔬👨‍🔬

Biozentrum, University of Basel@biozentrum.unibas.ch · last mo.

New Assistant (tenure-track) or Associate Professor position in Climate #Biophysics! Join our international research community to explore fundamental molecular mechanisms underlying climate-relevant biological processes. Apply by 7 Sept 2026! www.biozentrum.unibas.ch/de/open-posi...

Crazy biochemistry is the norm for @schullerjm.bsky.social, but here I wanna say I have witnessed up close the amazing effort from @tomaspascoa.bsky.social and @tamb-o.bsky.social to chase the BCRII complex in situ 🤩 Big congrats to Lena Appel and @rnfr2d2.bsky.social for the cryoEM structure too 👏🏽

Tomas Pascoa@tomaspascoa.bsky.social · 4mo ago

5/ But one key component was still missing: the high-potential acceptor 🤔🔍 Earlier studies proposed that BCRII is membrane-attached and transfers electrons to menaquinone Using in situ #cryoET, we instead found BCRII dispersed throughout the cytoplasm, pointing to a soluble high-potential acceptor

Across scales from cells🦠 to atoms⚛️ – We reveal how anaerobic #bacteria break down very stable aromatic compounds found e.g. in oil spills 🛢️ #Bioremediation #TeamTomo 🧪 🧶🧬 🔬 Awesome collab with Lena, Matthias, @schullerjm.bsky.social @rnfr2d2.bsky.social @tomaspascoa.bsky.social @tamb-o.bsky.social

Tomas Pascoa@tomaspascoa.bsky.social · 4mo ago

1/ Excited to share our preprint! 🥳 Degradation of aromatic compounds, including BTEX pollutants, requires highly endergonic aromatic ring reduction. Using #cryoEM and in situ #cryoET, we show how BCRII couples electron bifurcation modules in one giant redox machine www.biorxiv.org/content/10.6...

Amazing paper. A megadalton enzyme complex that: - combines both electron bifurcation AND confurcation steps - has a new type of iron-sulfur cluster - a new kind of weird electron transfer path - super charges electrons to reduce aromatic rings - also powers respiration 😳

Ben Engel@cellarchlab.com · 4mo ago

Across scales from cells🦠 to atoms⚛️ – We reveal how anaerobic #bacteria break down very stable aromatic compounds found e.g. in oil spills 🛢️ #Bioremediation #TeamTomo 🧪 🧶🧬 🔬 Awesome collab with Lena, Matthias, @schullerjm.bsky.social @rnfr2d2.bsky.social @tomaspascoa.bsky.social @tamb-o.bsky.social

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Happy to present our latest story: the BCRII complex with the Boll and @cellarchlab.com . Months of processing by @rnfr2d2.bsky.social. Also @tomaspascoa.bsky.social and @tamb-o.bsky.social managed an in-situ tour de force. And Lena Appel did amazing biochemistry. This story has it all. Enjoy it.

Tomas Pascoa@tomaspascoa.bsky.social · 4mo ago

1/ Excited to share our preprint! 🥳 Degradation of aromatic compounds, including BTEX pollutants, requires highly endergonic aromatic ring reduction. Using #cryoEM and in situ #cryoET, we show how BCRII couples electron bifurcation modules in one giant redox machine www.biorxiv.org/content/10.6...

I will probably be hiring either a PhD or a Postdoc in the near future. If you are interested in deep biochemical history or molecular mechanisms of evolution please get in touch.

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Congratulations 🎉 Anuj. This is well earned and I am a proud supervisor. There is much more coming. @rnfr2d2.bsky.social will present a paradigm shifting story this year at the GRC C1 and EBEC.

Anuj@rnfr2d2.bsky.social · 4mo ago

I am truly honoured and delighted to receive the GBM #PhDAward from @gbmev.bsky.social Grateful to @schullerjm.bsky.social and Prof. Volker Müller for their continuous support and guidance! www.uni-marburg.de/en/prfolder-...

Carbonic anhydrase catalyses the interconversion of CO2 and HCO3- and helps increasing the net-CO2 concentration inside cells. Why? CO2-reducing enzymes like RuBisCO are notoriously slow and ineffective. However, import of HCO3- is typically coupled to ATP consumption...

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The largest challenge of the day. Try to assemble 5 structural biology papers (each more than 100 pages incl. Supplements) in a single pdf with less than 15MB to upload as a document for a prize nomination for a student. Not sure compression algorithms are that good...

Die aller♥️lichsten Glückwünsche🍾🥂auch von uns an Jan Schuller, Wissenschaftler👨🏼‍🔬bei LOEWE-Tree-M & zuvor bereits beim ehem. LOEWE-Zentrum SYNMIKRO, zu seinem #Explorationsstipendium der Boehringer Ingelheim Stiftung! @synmikro.bsky.social @loewe-tree-m.bsky.social.

Universität Marburg@unimarburg.bsky.social · 11mo ago

Dr. Jan Schuller erhält renommiertes Boehringer Ingelheim Stiftung (BIS) Stipendium. Im Fokus: Wie schädliche #Darmbakterien ohne #Sauerstoff Energie gewinnen – die Funktionsweise von #Clostridioides difficile uni-marburg.de/eOYjSV Foto: R K Wegst #Mikrobiologie #Kryo-Elektronenmikroskopie

Portray of Jan Schuller