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Marius Lemberg

@marius-lemberg.bsky.social
1.1K followers 784 following 15 posts

Biochemist and Cell Biologist, Professor @unicologne.bsky.social, Director Center for Biochemistry @bccologne.bsky.social

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Reposted by Marius Lemberg
Hauke Hillen @haukehillen.bsky.social · 30/09/2026
We are looking for a new team member! Interested in structural biology, gene expression and organelles? Then apply now to our open PhD position: umg.recruiting-portal.com/r/z11okjqp6v...
umg.recruiting-portal.com
Institut für Zellbiochemie -- PhD (f/m/d)
PhD (f/m/d)
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Matthew Freeman @mjafreeman.bsky.social · 30/09/2026
Yet another opportunity @dunnschool.bsky.social! We are looking for an Associate Professor If you have exciting research plans, @dunnschool.bsky.social is a great place: excellent science (and lovely people, obvs) www.path.ox.ac.uk/vacancy/asso...
path.ox.ac.uk
Associate Professorship of Cancer Biology - Sir William Dunn School of Pathology in association with the Queen’s College. - Dunn School
We are seeking to appoint an Associate Professor working in the area of the cellular and/or molecular biology of cancer, to be based in Oxford University’s Sir William Dunn School of Pathology. The ro...
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Journal of Cell Biology @jcb.org · 18/09/2026
Rhomboid protease Rhbdl2 influences #macrophage recruitment and wound repair in #zebrafish. New study from Saroj Gourkanti, Sonya E. Neal @neal-lab.bsky.social @ucsdhealthsci.bsky.social and colleagues: rupress.org/jcb/article/... #Migration #motility #Immunology
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Fran Bottanelli @franbottanelli.bsky.social · 14/09/2026
#membranetrafficking seminars are back for the fall session! This Thursday two exciting talks from Roger Pons Lanau from @felixmendu.bsky.social lab and @veijosalo.bsky.social #ER #lipiddroplets and lots of wonderful imaging! From single molecules to cryo EM! Please repost
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MitoInHD @voegtlelab.bsky.social · 08/09/2026
Why would a single amino acid be removed? What a big difference one amino acid can make, we investigated in our recent publication. Thanks to everyone involved!
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Marius Lemberg @marius-lemberg.bsky.social · 10/09/2026
Fascinating new work on TMEM115 and Rab6A/TMF1. I did smile at “in contrast to canonical rhomboid-like mechanisms” - given how little we still know about how most rhomboid pseudoproteases actually work 😉. Really intriguing study!
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Matthew Freeman @mjafreeman.bsky.social · 09/09/2026
Less than 2 weeks to apply! If you are looking for early career fellowship sponsorship, consider @dunnschool.bsky.social to launch your independent career Great science, great support and, of course, lovely colleagues... www.path.ox.ac.uk/work-with-us...
path.ox.ac.uk
Group Leader Career Development Fellowships - Dunn School
Are you an early career researcher interested in the cell or molecular mechanisms underlying disease? Do you have an outstanding record and an innovative research plan?
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Journal of Cell Science @jcellsci.bsky.social · 09/09/2026
Susanne Steigleder, Julian Nüchel @jnuechel.bsky.social, Marius Lemberg @marius-lemberg.bsky.social and colleagues identify a Golgi-bypass secretion mechanism for proTGFα involving TMED9 and GRASP65. journals.biologists.com/jcs/article/...
Proposed mechanism of TMED9- and GRASP65-induced unconventional proTGFα secretion.
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Ishier Raote @ishier.bsky.social · 07/09/2026
Membrane Trafficking Seminar Series 2026 fall season is here! An exciting programme: membrane traffic, organelle biogenesis, lipid transport, endomembrane evolution, we have it all! Save the dates and join us for fun science and discussions. Details at felixcampelo.wixsite.com/membranetraf...
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Biochemistry Center Cologne @bccologne.bsky.social · 04/09/2026
go.bsky.app/815Mrzs
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Marius Lemberg @marius-lemberg.bsky.social · 04/09/2026
We’re looking for a new colleague in Cologne! A permanent 75% position coordinating and developing our Biochemistry teaching - with plenty of opportunity to teach and shape the curriculum. Must be able to teach in German 🇩🇪 Please share! jobs-uk-koeln.onlyfy.jobs/de/job/ztehy...
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Cell Biology J-Club @cellclub.bsky.social · 02/09/2026
www.biorxiv.org/content/10.6... Proteolytic Remodeling of Cargo Receptor Networks by RHBDL4 Tunes Secretory Pathway Flux
biorxiv.org
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Marius Lemberg @marius-lemberg.bsky.social · 01/09/2026
Our new preprint is out! We show that the intramembrane protease RHBDL4 targets multiple cargo receptor families, linking proteolytic remodeling of cargo receptor networks to the regulation of secretory pathway flux. Great work led by Susi Steigleder, @jnuechel.bsky.social and the team!
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Julian Nüchel @jnuechel.bsky.social · 01/09/2026
Brandnew preprint from @marius-lemberg.bsky.social @bccologne.bsky.social and my lab ! Great to be Part of this collaboration!
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Marius Lemberg @marius-lemberg.bsky.social · 30/07/2026
Great team effort - congratulations to everyone involved, and to @jnuechel.bsky.social on another publication from his junior research group. Looking forward to what's next! 👏
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Julian Nüchel @jnuechel.bsky.social · 23/07/2026
1/10 New preprint alert!🚨 @bccologne.bsky.social @mpiage.bsky.social
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Biochemistry Center Cologne @bccologne.bsky.social · 23/07/2026
Congratulations to our junior group leader @bccologne @unicologne Julian Nüchel on this exciting preprint! The study identifies TANGO1 as a selective ECM cargo receptor, revealing new insights into ER export and skeletal dysplasia. A collaborative milestone from FOR2722
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Julian Nüchel @jnuechel.bsky.social · 27/04/2026
💥 New publication from the Demetriades and Nüchel groups– final version now online in EMBO reports! This Tour de force wouldn’t have worked out without the amazing support from our collaborators and core facilities!
link.springer.com
GRASP55 maintains lysosome function by controlling sorting of lysosomal enzymes at the Golgi - EMBO Reports
Lysosomes are multifunctional organelles that play important roles in cellular recycling, signaling, and homeostasis, relying on precise trafficking and activation of lysosomal enzymes. While the Golg...
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Verhelst Lab @verhelstlab.bsky.social · 12/08/2025
My lab has two open positions! One in Organic Chemistry (focus on carbohydrates), one in Cell Biology/Biochemistry. Deadline Sept 3rd, 2025! PhD student Organic Synthesis: www.kuleuven.be/personeel/jo... PhD student Cell Biology/Biochemistry: www.kuleuven.be/personeel/jo...
kuleuven.be
PhD student in Organic Synthesis
Organic synthesis in chemical biology project
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Iqbal Dulloo @iqbaldulloo.bsky.social · 01/08/2025
Hi everyone! New to the community and thrilled to be starting a lab @warwicklifesci.bsky.social focused on the intersection of membrane protein biogenesis and gene regulation. Looking forward to connect with fellow researchers. #AcademicSky #NewLab #CellBiology #Science #Research #MembraneProteins
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Marcel Dickmanns | 🌿❄️🔬 @madic.bsky.social · 26/07/2025
New preprint: In situ Architecture of #Plasmodesmata. Using #cryoET, #AlphaFold & proteomics, we uncover the native organization of plant intercellular nanopores. 🔗 doi.org/10.1101/2025... 🧪🧵1/n #teamtomo #PlantScience #Physcomitrium #Arabidopsis #cryoEM
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Marius Lemberg @marius-lemberg.bsky.social · 07/06/2025
Just stumbled upon a German tongue-twister song by Bodo Wartke… about the sexiest cell organelle. Yes, endoplasmic reticulum - your moment has come. youtube.com/shorts/EP5pd...
youtube.com
Das endoplasmatische Retikulum
YouTube video by Bodo Wartke
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MolinariLab-ER @molinarilab-er.bsky.social · 22/05/2025
Dan, a friend for many of us, passed at the end of last year. Before leaving, with his students and colleagues, he prepared this gift. Amazing. N-glycan-dependent protein maturation and quality control in the ER | Nature Reviews Molecular Cell Biology www.nature.com/articles/s41...
nature.com
N-glycan-dependent protein maturation and quality control in the ER - Nature Reviews Molecular Cell Biology
N-glycosylation of secretory pathway proteins in the ER is crucial for their maturation and quality control. Recent insights into the enzymes and chaperones that facilitate N-glycosylation have expand...
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CECAD Cologne @cecad.bsky.social · 22/05/2025
CECAD receives renewed DFG funding! 🎉 We continue to unlock the biology of aging 🧬 and advance healthy aging for all! 👵👴 ➡️ uni.koeln/GAPGK #CECAD #AgingResearch #ExcellenceCluster #DFG #HealthyAging @unicologne.bsky.social
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R.E.M. @remhq.bsky.social · 02/05/2025
📡 Broadcasting a new signal On the eve of #WorldPressFreedomDay, R.E.M. is proud to announce Radio Free Europe 2025—a five-track benefit EP saluting 75 years of RFE/RL’s fearless journalism. Watch the full Dispatch video + learn more about Jacknife Lee and Mitch Easter RFE remixes ffm.to/remrfe2025
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Verena Kohler @verenakohler.bsky.social · 18/04/2025
🔬 Hiring: Postdoctoral Fellow Seeking a bioinformatician/screening expert to be part of our team running genome‑wide screens, building data‑integration pipelines & validating hits in higher organisms. 🌱 2‑yr fellowship with tailored mentorship, leadership & science‑communication training
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Michael Lazarou @lazaroulab.bsky.social · 02/04/2025
This is a very sad day. Shock, despair, disappointment, disbelief... These only scratch the surface in describing this decision and how I feel. I began my career in Parkinson's research in Richard's lab. What happens now to all the trainees still there?
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Stella Hurtley @smhsci.bsky.social · 29/11/2024
And another poignant reminder that scientists are human too www.science.org/content/arti...
science.org
As women in academia, having children can feel impossible. Talking about it makes us feel less alone
The struggle is “balancing their careers not just with motherhood, but with what comes before: relationships and planning for a family,” these postdocs write
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Guillaume Thibault @gthibault.bsky.social · 02/04/2025
🚨 The April 13 deadline to submit abstracts for short talk consideration is coming up fast! Trainees and early-career researchers—don’t miss your chance to present your work and be eligible for talk and poster prizes at @faseborg.bsky.social #FASEB2025 #ERSRC
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Stella Hurtley @smhsci.bsky.social · 27/03/2025
Leucine aminopeptidase LyLAP enables lysosomal degradation of membrane proteins | Science www.science.org/doi/10.1126/...
science.org
Leucine aminopeptidase LyLAP enables lysosomal degradation of membrane proteins
Breakdown of every transmembrane protein trafficked to lysosomes requires proteolysis of their hydrophobic helical transmembrane domains. Combining lysosomal proteomics with functional genomic dataset...
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Alison Forrester @aforrester.bsky.social · 20/03/2025
The 16th ER & Redox club meeting ends. THANK YOU to co-organiser @fenech-lab.bsky.social & to everyone for outstanding presentations, discussions, posters and fun over the last 4 days in Namur. Huge thanks to @unamur.bsky.social @biologists.bsky.social @febspress.bsky.social for support and funding!
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Marius Lemberg @marius-lemberg.bsky.social · 20/03/2025
That was an inspiring meeting! Huge tanks to @aforrester.bsky.social and Emma @fenech-lab.bsky.social for hosting this incredible event!
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Ishier Raote @ishier.bsky.social · 20/03/2025
Susanne Steigleder (University of Cologne) showed exciting data on the role of the intramembrane protease RHBDL4 in regulating protein trafficking. #ERRedox2025
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Christian Frezza @frezzalab.bsky.social · 14/03/2025
Structure of human PINK1 at a mitochondrial TOM-VDAC array | Science www.science.org/doi/10.1126/...
science.org
Structure of human PINK1 at a mitochondrial TOM-VDAC array
Mutations in the ubiquitin kinase PINK1 cause early onset Parkinson’s Disease, but how PINK1 is stabilized at depolarized mitochondrial translocase complexes has remained poorly understood. We determi...
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Şuayb Üstün @suaybuestuen.bsky.social · 05/03/2025
Wow! The Proteasome generates antimicrobial peptides that directly affect bacterial membranes #proteostasis www.nature.com/articles/s41...
nature.com
Cell-autonomous innate immunity by proteasome-derived defence peptides - Nature
Proteasomal degradation of cellular proteins generate defence peptides constitutively and in response to bacterial infection. Such peptides might provide a source of natural antibiotics that...
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The Freeman Lab @spencerfreeman.bsky.social · 27/02/2025
We've been studying mechanisms of resilience that protect lysosomes from damage and wrote a review on the topic. We consider lysosomal stress and damage on a spectrum. Please help me share as this is my first post 😀 and I don't have many followers! 🙏 Open Access: www.embopress.org/doi/full/10....
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Sonya Neal @neal-lab.bsky.social · 14/02/2025
Incredible work led by Dr. Satarupa Bhaduri, co-authors @mackevinbraza.bsky.social and others. This work wouldn't have been possible without our collaborators Dr. Anthony O'Donoghue, @rommieamaro.bsky.social @marius-lemberg.bsky.social and Dr. Kvido Strisovsky
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Ulrich Lab @ulrichlab.bsky.social · 13/02/2025
Join our GBM Redox Meeting 2025 in Saarbrücken! We put together an exciting program covering diverse aspects of Redox Regulation in Life. Check out the Programm and register until Feb 28! redox-gbm-meeting-2025.uni-koeln.de #redox #redoxbiology #gbm @gbmev.bsky.social
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Marius Lemberg @marius-lemberg.bsky.social · 30/01/2025
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Hellerschmied Lab @hellerschmiedlab.bsky.social · 30/01/2025
Had a great time in Cologne talking science with @trentini-lab.bsky.social @ulrichlab.bsky.social @riemerlab.bsky.social @marius-lemberg.bsky.social and many more! Thank you for the warm welcome! And for the invitation @valentinapiano.bsky.social
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Auschwitz Memorial @auschwitzmemorial.bsky.social · 27/01/2025
Auschwitz was at the end of a long process. It did not start from gas chambers. This hatred was gradually developed by humans. From ideas, words, stereotypes & prejudice through legal exclusion, dehumanization & escalating violence... to systematic and industrial murder. Auschwitz took time.
A bird's-eye view of a former Auschwitz II-Birkenau camp showing a wide dirt pathway flanked by parallel rows of barbed-wire fences. Groups of visitors walk along the path, surrounded by the remnants of brick structures and barracks, now reduced to foundations. Green grass contrasts with the somber history of the site, as the path leads toward a guard tower in the distance.
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Achim Zolke 🇪🇺 @zolke.bsky.social · 19/01/2025
This is a turning point. We Europeans have the power to push X into irrelevance across our continent. Freeze or delete your accounts now. Media, it’s time to stop citing X. Dozens of universities are leading the way. Let’s limit Elon Musk’s influence in 🇪🇺. #eXit #SciXit #Democracy
Article on the mass eXit of German universities from plattform X in protest against anti-democratic discourse pushed by Elon Musks algorithms.
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Universität zu Köln @unicologne.bsky.social · 13/01/2025
👋Hallo Bluesky wir sind #uniköln // we are #unicologne
Universität zu Köln Hauptgebäude, Blauer Himmel, Mond
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Mathieu M.J.E. Rebeaud @chercheurjuteux.com · 12/12/2024
I am always trying to upgrade the starter pack of Chaperonologists / PQC / Proteostasis scientists If you want to be added, feel free to ask. go.bsky.app/Co7Tuub
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Journal of Cell Science @jcellsci.bsky.social · 18/12/2024
Nikita Sergejevs, Pedro Carvalho and colleagues find that that the intramembrane protease SPP conducts topology surveillance of CYP51A1 by initiating quality control of incorrectly inserted molecules. Highlight: journals.biologists.com/jcs/article/... Article: journals.biologists.com/jcs/article/...
Proposed model of CYP51A1 recognition by SPP. In cells, the lanosterol demethylase CYP51A1 can exist in two distinct conformations, with only one conformation being recognized for membrane protein quality control. The early recognition event by SPP consists of an N-terminal cleavage within the AH of the substrate. This generates a truncated version of CYP51A1 that is subsequently recognized by the RNF185–MBRL E3 ubiquitin ligase complex, extracted from the ER membrane and degraded by the cytosolic proteasomes. APH, amphipathic helix.
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H.P. @hannelore14089.bsky.social · 16/12/2024
Am 16. Dezember 1992 verlegte der Künstler Gunter Demnig den ersten Stolperstein in Köln mit dem er vor der letzten bekannten Adresse des Opfers des Nazi Unrechtsregimes ein Zeichen setzen wollte, daß diese Menschen nicht vergessen sind und nicht vergessen werden dürfen.
Gunter Demnig bei der Verlegung der Gedenktafel
vor der Antoniterkirche, 1995/1996
Dokumentationszentrum, Kunst, Köln
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David Teis @teislab.bsky.social · 19/11/2024
How do quiescent cells stop to eat? TXNIP mediates LAT1/SLC7A5 endocytosis to curb amino acid uptake and to meet low metabolic needs of cells entering quiescence. Defects can result in metabolic disease. biorxiv.org/content/10.1... by @Jenny12119 with @Hesso_F_Sci @ThedieckLab
biorxiv.org
TXNIP mediates LAT1/SLC7A5 endocytosis to reduce amino acid uptake in cells entering quiescence
Entry and exit from quiescence require changes in cellular nutrient acquisition. How quiescent cells reduce nutrient uptake was unclear. Here, we demonstrate that cells entering quiescence select plas...
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Guillaume Thibault @gthibault.bsky.social · 11/12/2024
🌟 Registration is now OPEN for the #FASEB Endoplasmic Reticulum Conference 2025 #ERSRC! 🎉 Join us June 8-12, 2025, in Melbourne 🏖️, FL, for cutting-edge science and networking. Check out the program and register here 👇 events.faseb.org/event/endoplasmic-reticulum-function-disease
events.faseb.org
Endoplasmic Reticulum
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Marius Lemberg @marius-lemberg.bsky.social · 10/12/2024
Congratulations Jan & team!
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Micha Rapé Lab @micharapelab.bsky.social · 06/12/2024
Excited to reveal specific reactive oxygen species as sentinel molecules that control localized protein degradation at #mitochondria to adjust electron transport chain abundance, with many implications for the role of ROS in development and disease. www.cell.com/molecular-ce...
cell.com
Reactive oxygen species control protein degradation at the mitochondrial import gate
This work identifies reactive oxygen species released by the electron transport chain as sentinel molecules that regulate localized protein degradation at mitochondrial TOM complexes, a mechanism that controls mitochondrial protein import and adjusts the abundance of the electron transport chain to cellular needs.
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