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Posts by Sascha Martens

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🚨 Paper Alert! In this new work published in @jcellsci.bsky.social we shift our focus on MTFR1L and the feedback loop linking mitochondrial fission, mitophagy and apoptosis. MTFR1L emerges as a critical coordinator of the fission and autophagy machinery.
🔗Find the paper here: doi.org/10.1242/jcs....

1 week ago 31 13 2 3
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Exciting job offer: PhD Program Manager. Lead recruitment, support PhD candidates, and shape doctoral training at a top international life sciences campus. https://ow.ly/3YkN50YAuGM
Institute of Molecular Biotechnology, Max Perutz Labs Vienna, IMP, Gregor Mendel Institute of Molecular Plant Biology

3 weeks ago 1 3 0 1
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In this Perspective, North, @doroteaartscience.bsky.social, Shoemaker et al. highlight the rapidly expanding role of LC3-interacting regions in autophagy. rupress.org/jcb/article/...

📕 Part of #Autophagy 2026 👉 rupress.org/jcb/collecti...
#GRC

1 month ago 9 7 0 0
Rearrangement of amphipathic helices enables lipid uptake at ATG2A N-terminus.

Rearrangement of amphipathic helices enables lipid uptake at ATG2A N-terminus.

📢 New #preprint from CRN Team Hurley!

The team uncovers the mechanism of ATG2A-mediated lipid transport 🧬

Structural modeling and simulations show that N-terminal helices gate lipid transfer, and a designed mutant transfers lipids three times faster in vitro.

🔗 bit.ly/4rHuWpr

1 month ago 5 3 0 0
Rearrangement of amphipathic helices enables lipid uptake at ATG2A N-terminus.

Rearrangement of amphipathic helices enables lipid uptake at ATG2A N-terminus.

📢 New #preprint from CRN Team Hurley!

The team uncovers the mechanism of ATG2A-mediated lipid transport 🧪

Structural modeling and simulations show that N-terminal helices gate lipid transfer, and a designed mutant transfers lipids three times faster in vitro.

🔗 bit.ly/3ZVAxw6

1 month ago 10 5 0 0
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Really happy to see this one out: www.sciencedirect.com/science/arti... Alibek's drive & great coll w/ friends @gekaragoz.bsky.social & E. Hallacli resulted in a cool story that starts with our beloved #Marchantia and ends with iPSC-derived neurons 🤩🤪 A short 🧵

1 month ago 119 53 6 7

Why do pathological protein aggregates persist in cells and how can we overcome this?
In our new preprint, we show that Tau aggregates fail to initiate selective autophagy and that their autophagic degradation can be restored.
#Autophagy #Tau #Proteostasis

Out now 👇 www.biorxiv.org/content/10.6...

2 months ago 39 16 2 0
From one complex to many: Rethinking the BLOC/BORC system Two protein complexes that regulate intracellular transport and lysosome positioning were long thought to exist as single, well-defined entities. New structural insights now come from the groups of Da...

More: www.imp.ac.at/news/article...

3 months ago 1 2 0 0
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LLOMe has long been used to study lysosomal damage, yet how it works has remained a mystery.
Using cryo-electron tomography, we show it forms amyloid structures inside lysosomes that mechanically rupture membranes – revealing a new paradigm for lysosomal failure.

🔗 doi.org/10.64898/202...

#CryoET

3 months ago 113 40 3 2
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We are excited to share our new preprint which is now available to read on biorXiv: doi.org/10.64898/202... 🎉🎉🎉

3 months ago 119 37 2 6
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If you are interested in #ubiquitin related topics (Who isn’t???) & looking for a friendly and collegial meeting where you can talk to anyone & everyone, this is your meeting!

3 months ago 19 4 0 0
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Join us for the #Ubiquitin & Friends Symposium 2026, April 29-30, in Vienna!
Fantastic guest speakers👇 & many slots for talks from abstracts, flash-talks & posters. Lots of opportunities to network. Register now to save your spot!
➡️ www.protein-degradation.org/symposium/
#ubfriends2026

3 months ago 34 21 1 3
The compositional analysis of membranes in bulk cellular volumes via AIVE. (A–D)

The compositional analysis of membranes in bulk cellular volumes via AIVE. (A–D)

CRN Team Hurley developed AI-directed voxel extraction (AIVE), a segmentation strategy that refines AI-based organelle boundary predictions. Using AIVE, they identified a previously unknown mitochondrial contact termed the mitochondrial intrusion 🧪

🔗 Read the #publication: bit.ly/4qeZiOY

3 months ago 4 3 0 0
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The ATG8 E3-like ligases sense lysosomal damage and initiate ESCRT-mediated membrane repair - The EMBO Journal After damage from pathogenic, chemical or physical stress, endolysosomal membranes are repaired and resealed by the endosomal sorting complex required for transport (ESCRT) machinery, but how this mem...

The ATG8 E3-like ligases sense lysosomal damage and initiate ESCRT-mediated membrane repair
Dale Corkery, Yao-Wen Wu et al
link.springer.com/article/10.1...

3 months ago 13 7 1 0
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Self-renewal of neuronal mitochondria through asymmetric division Mitochondrial ATP production is essential for life. Mitochondrial function depends on the spatio-temporal coordination of nuclear and mitochondrial genome expression, yet how this coordination occurs ...

⚡️Mitochondria make ATP, the energy that powers life. But in neurons, with axons up to a meter long, how do these tiny power plants stay functional in the right places? We went looking. 1/n www.biorxiv.org/content/10.6...

4 months ago 93 43 2 4
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Glad to have this finally published: www.sciencedirect.com/science/arti... lots of new data since the #preprint. If you are into selective #autophagy, #evolution, #proteostasis Please have a look!

4 months ago 115 47 2 1
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There are a couple of empty chairs at our table — want to sit with us?
Reach out to me or any lab member www.oeaw.ac.at/gmi/research... We’ll be hiring two postdocs in 2026.
We’re excited about ambitious and creative ideas and are committed to supporting future group leaders 1/2

4 months ago 36 24 1 0
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✨ Passionate about cell biology or biochemistry? Join the Martens Lab as a postdoc to uncover why autophagy stalls at disease-linked protein aggregates - and how to restart it 🧠 Apply here ➡️ tinyurl.com/24dcrcke

5 months ago 10 9 0 1
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Join us later today 👇

5 months ago 1 3 0 0
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🌍Open call: Junior Group Leader positions!

Join a world-class biomedical research institute at the heart of the Vienna BioCenter, where curiosity drives discovery.

Lead your own lab, pursue bold ideas, and shape the future of science at the IMP: www.imp.ac.at/career/open-...

5 months ago 95 84 1 7
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Reconstitution of multistep recruitment of ULK1 to membranes in autophagy The ULK1 complex (ULK1C) and the class III phosphatidylinositol 3-kinase complex I (PI3KC3-C1) act together to initiate autophagy. Human ULK1C consists of ULK1 itself, FIP200, and the HORMA domain het...

New pre-print out on the stepwise recruitment to membrane of the #autophagy ULK1 complex from the @mito911.bsky.social from @martenslab.bsky.social Ian Ganley @hummerlab.bsky.social @jimhurley.bsky.social labs
with the generous support of @asapresearch.parkinsonsroadmap.org
doi.org/10.1101/2025...

5 months ago 19 9 0 0
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ERC Synergy Grant for Prof. Dr. Claudine Kraft CIBSS speaker Prof. Dr. Claudine Kraft is part of a team receiving an ERC Synergy Grant of ten million euros for her research on how autophagy degrades large protein aggregates in health and disease.

Congratulations! Claudine Kraft @kraftlabfr.bsky.social receives a prestigious ERC Synergy Grant – to find out why some protein #aggregates can be cleared by #autophagy and others not. She and her partners will harness this knowledge to improve autophagy in #ageing & #disease.
🔗  kurzlinks.de/50j8

5 months ago 30 9 2 1
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Thrilled to join you and Claudine to study the cell's own version of Banksy's self-shredding artwork!

5 months ago 7 3 0 0

Fantastic teamwork with @kraftlabfr.bsky.social and @jimhurley.bsky.social! Looking forward to exciting discoveries ahead. Many thanks to @erc.europa.eu for funding our proposal. @univie.ac.at @maxperutzlabs.ac.at @viennabiocenter.bsky.social

5 months ago 14 3 2 0
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Tenure-Track Professorship in Genome Biology - Vienna BioCenter, Austria job with Max Perutz Labs, University of Vienna | 12848567 Launch your lab at the Max Perutz Labs and join us in our mission to analyze and reconstitute complex biological systems across scales.

Another opportunity to join @maxperutzlabs.ac.at !
If you're looking to start your own lab in a collaborative and supportive environment, I highly recommend it!

www.nature.com/naturecareer...

5 months ago 4 2 0 0
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📢 Open Call! The Max Perutz Labs invite applications for a Full Professorship in Integrative Structure Biology with a focus on in situ structural biology using cryo-electron tomography (cryo-ET) and related methods. More details ➡️ tinyurl.com/brswbymu

5 months ago 27 43 0 3
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Mechanism of autophagy initiation by transmembrane selective autophagy receptors | The EMBO Journal EMBO Press is an editorially independent publishing platform for the development of EMBO scientific publications.

Our latest review is now online! 👇

@martenslab.bsky.social

Mechanism of autophagy initiation by transmembrane selective autophagy receptors | The EMBO Journal www.embopress.org/doi/full/10....

5 months ago 24 15 1 0

Position available! Team @mito911.bsky.social needs a new scientific program manager to take over from legendary super-PM @doroteaartscience.bsky.social, who is moving on to bigger things. This is a Berkeley-based position. Apply at aprecruit.berkeley.edu/JPF05103.

7 months ago 9 8 0 0
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Structural basis for mTORC1 activation on the lysosomal membrane - Nature Cryo-electron microscopy was used to study human mechanistic target of rapamycin complex 1 (mTORC1) activation on lysosomal membranes, showing progressive recruitment by RAG–Ragulator, RHEB and R...

Finally in @nature.com 🎉
We uncovered step-wise mTORC1 activation on membrane: RAG–Ragulator recruits, RHEB pushes closer, and direct membrane contacts by RAPTOR + mTOR trigger full kinase activity.👉 The membrane is not just a platform — it’s part of the mechanism.
www.nature.com/articles/s41...

7 months ago 35 14 5 2

Just one more week left to get an application in! Starting my lab at the Perutz and the @viennabiocenter.bsky.social has been a fantastic opportunity that shaped me as a scientist!

7 months ago 28 27 0 0