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Pauli Group (posts by Andi Pauli)

@pauligroup.bsky.social

Exploring the mysteries of how life starts - from fertilization to dormancy; combining in vivo & in vitro (fish, mouse, cell culture, biochem); privileged to work with an amazing team @IMP! https://paulilab.org/ https://www.imp.ac.at/groups/andrea-pauli/

1,394 Followers  |  659 Following  |  94 Posts  |  Joined: 15.11.2024  |  1.7634

Latest posts by pauligroup.bsky.social on Bluesky

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Thinking about EZM2026 in Vienna? 🐟
Travel grants are now open for students & ECRs.
7–11 July 2026 | Deadline: March 15
Hope to see many of you there! @ezsociety.bsky.social #zebrafish

06.02.2026 10:19 β€” πŸ‘ 11    πŸ” 10    πŸ’¬ 0    πŸ“Œ 0
Awakening the Genome During Developmental Reprogramming: From Embryos to Organoids This EMBO Workshop explores the gene-regulatory mechanisms that drive developmental reprogramming upon fertilization. It focuses on the interplay of transcriptional, post-transcriptional, and develop…

Still one week to register: meetings.embo.org/event/26-awa...
Come to Seville! It will be super fun!

26.01.2026 08:30 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1

Mark your calendars for 2027! The best GRC is coming to Europe πŸ‡³πŸ‡±

πŸ’₯ Fertilization and Activation of Development
πŸ“ Noordwijk, Netherlands
πŸ—“οΈ July 31 - August 6, 2027

www.grc.org/fertilizatio...

Can’t wait!

25.01.2026 19:56 β€” πŸ‘ 12    πŸ” 3    πŸ’¬ 0    πŸ“Œ 1
In vivo kinetics of protein degradation by individual proteasomes Protein degradation by the proteasome is central to cellular homeostasis and has been studied extensively using biochemical and structural studies. Despite an in-depth understanding of core proteolytic activity, it has remained largely unresolved how individual proteasomes process substrates inside living cells where many substrate types and co-factors exist. Here, we establish a live-cell single-molecule imaging approach that enables direct visualization and quantification of protein degradation by individual proteasomes. Using this approach, we find that substrate identity, folding and protein-protein interaction have a surprisingly modest impact on processing efficiency, whereas the mode of substrate engagement greatly impacts substrate processing; degradation initiated from protein termini typically proceeds rapidly and with high processivity, whereas internal engagement constitutes a distinct processing mode that exhibits poor processivity and a specific requirement for the AAA+ family ATPase p97/VCP. Furthermore, degradation initiated from opposite termini proceeds with asymmetric rates in a sequence-dependent manner, demonstrating that directionality is an important feature of proteasomal processing in vivo. Notably, poly-glutamine substrates associated with neurodegenerative disease are efficiently degraded from one terminus but resist degradation when engaged from the opposite terminus, highlighting the importance of substrate engagement mode. Together, our results show that different modes of substrate engagement lead to different proteasomal processing outcomes in vivo and revise the prevailing view of the proteasome as a uniform degradation machine. ### Competing Interest Statement The authors have declared no competing interest.

New lab paper!! We develop a technology for real-time, single-molecule visualization of proteasomal substrate degradation in cells. We find that the site of substrate engagement by the proteasome determines decay kinetics, efficiency and co-factor requirement.

www.biorxiv.org/content/10.6...

20.01.2026 08:32 β€” πŸ‘ 46    πŸ” 15    πŸ’¬ 1    πŸ“Œ 2
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πŸ§ͺScientists from our Haselbach lab captured how proteins begin to fold as they’re being made.

Using cryo-EM, they visualised chaperones guiding nascent proteins on the ribosome: https://www.nature.com/articles/s41467-025-67685-6

19.01.2026 09:40 β€” πŸ‘ 50    πŸ” 16    πŸ’¬ 1    πŸ“Œ 1

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!

10.01.2026 11:54 β€” πŸ‘ 19    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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An Evolutionarily Conserved N-terminal Domain of RRF-3 Governs GTSF-1 Binding in Nematodes GTSF1 is an essential activating cofactor for PIWI proteins in many metazoans. In the nematode Caenorhabditis elegans, however, GTSF-1 does not bind PIWI, but associates with the RNA-dependent RNA pol...

What a way to start the new year with one more submission to BioRxiv. This one is on how GTSF-1 enable RdRP activity in nematodes (for Piwi aficionados: correct, it does not affect Piwi😊)

www.biorxiv.org/content/10.6...

04.01.2026 14:47 β€” πŸ‘ 20    πŸ” 5    πŸ’¬ 2    πŸ“Œ 2
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If you want to become an expert in #zebrafish research, apply for the 2026 Zebrafish Development & Genetics course! You will be working in small groups taught by leaders in the field, which can be a transformative experience!

Application deadline: March 2

www.mbl.edu/education/ad...

03.01.2026 09:01 β€” πŸ‘ 8    πŸ” 7    πŸ’¬ 0    πŸ“Œ 1
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Course Offerings | Marine Biological Laboratory

Are you planning your summer ahead and are interested in immersing yourself in some intense weeks of research, science and fun?
Then this might be for you: Check out the amazing summer course offerings @mblscience.bsky.social, including the #Zebrafish course!

www.mbl.edu/education/ad...

03.01.2026 09:01 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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Activator-promoter compatibility in mammals: a CpG-Island-specific co-activator directly bridges transcription factors to TFIID Transcription from CpG island (CGI) promoters controls the expression of two-thirds of mammalian genes, yet despite their prevalence, it remains unknown whether CGI-specific co-activators with intrins...

Activator-promoter compatibility in mammals - Hcfc1 is a key and intrinsically CGI-promoter-specific co-activator that cannot activate non-CGI promoters. Lead by @nemcko.bsky.social & Kevin Sabath in collab. with @plaschkalab.bsky.social @impvienna.bsky.social www.biorxiv.org/content/10.6... (1/2)

30.12.2025 08:01 β€” πŸ‘ 78    πŸ” 23    πŸ’¬ 1    πŸ“Œ 1

Applications for the 2026 Vienna BioCenter Summer School Program are now open!

Please share this opportunity with talented undergrads or Masters students interested in broadening their research experience in molecular biology in the heart of Europe 🧬

17.11.2025 16:48 β€” πŸ‘ 10    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0

Very happy to share my postdoc work (on preprint), where we try to understand a long-standing transcription-silencing paradox, and uncovered a hidden RNA decay arm of nuclear piRNA pathway, see detailed threads quoted from @juliusbrennecke.bsky.social

22.12.2025 19:38 β€” πŸ‘ 33    πŸ” 12    πŸ’¬ 1    πŸ“Œ 0

We probably shouldn’t have favourites amongst projects in the lab, but this one was mine. I’m so pleased we can finally share it:

Our work is now out in Nature Communications:
πŸ”— nature.com/articles/s41467-025-67692-7

22.12.2025 14:38 β€” πŸ‘ 25    πŸ” 10    πŸ’¬ 2    πŸ“Œ 1

I feel like a parent seeing your first kid leave home ;-).
While the entire Pauli lab family will greatly miss @lorenzoorts.bsky.social as Laura has become a real role model, it makes me incredibly happy & proud to have her establish the Lorenzo-Orts lab at the @imbmainz.bsky.social! All the best!

14.12.2025 20:26 β€” πŸ‘ 41    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
Systematic analysis of noncanonical ribosomal protein paralogs does not provide evidence for specialized functions in Drosophila

Systematic analysis of noncanonical ribosomal protein paralogs does not provide evidence for specialized functions in Drosophila

So excited to finally be able to share my first paper and the culmination of my PhD work with @felipekteixeira.bsky.social πŸͺ°πŸ”¬

www.pnas.org/doi/10.1073/...

04.12.2025 21:41 β€” πŸ‘ 15    πŸ” 12    πŸ’¬ 3    πŸ“Œ 2

All the best for becoming the 'Schierleader' yourself for your team! Rooting for you, and am looking forward to seeing what the Reimao Pinto-lab will be up to in the future!

03.12.2025 07:03 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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AlphaFold is five years old β€” these charts show how it revolutionized science Since it was unveiled in 2020, Google DeepMind's game-changing AI tool has helped researchers all over the world to predict the 3D structures of hundreds of millions of proteins.

Nature featured work from our Pauli lab, where AlphaFold-Multimer helped reveal how Tmem81 and two sperm proteins create the pocket for the egg protein Bouncer to bind.

Andrea Pauli: β€œAlphaFold speeds up discovery, we use it for every project.”

πŸ”— www.nature.com/articles/d41...

27.11.2025 13:04 β€” πŸ‘ 16    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0

Big congrats to the entire team from the @beckmannlab.bsky.social and @greenlab.bsky.social, in particular first author Vienna!

23.11.2025 20:52 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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How does the kinase ZAK sense ribosome collisions? Find out in our latest collaboration with the @greenlab.bsky.social @doubleshuang.bsky.social @Vienna Huso: 1/4
rdcu.be/eRmJl
#ribosome #cryoEM #LMU #JHMI

23.11.2025 15:46 β€” πŸ‘ 48    πŸ” 20    πŸ’¬ 2    πŸ“Œ 2
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SAVE THE DATE! Stoked to organize the 2026 Santa Cruz Developmental Biology Meeting with @rashmi-priya.bsky.social, @lowelab.bsky.social, and Shelbi Russell. Come learn about Biomedicine, Biomechanics, and the Biosphere, August 24-28, 2026. Registration dates, etc., coming soon! Please RT

19.11.2025 20:23 β€” πŸ‘ 120    πŸ” 75    πŸ’¬ 1    πŸ“Œ 3
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How does messenger RNA (mRNA) get out of the nucleus to become a protein? Eukaryotic mRNA is packaged, exported, and then translated in the cytoplasm. But how do these steps work? And what are open questions? Check out our new review for our take: www.annualreviews.org/content/jour... (1/3)

21.11.2025 17:36 β€” πŸ‘ 122    πŸ” 52    πŸ’¬ 1    πŸ“Œ 3

... and we would love to see you ALL - working with ANY fish model - join us in Vienna for www.ezm2026.org, the biggest fish meeting in 2026! We plan to have a special session 'beyond zebrafish' and would love to include talks representing other fish systems across all sessions. Pls spread the word!

21.11.2025 19:23 β€” πŸ‘ 12    πŸ” 7    πŸ’¬ 2    πŸ“Œ 0
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MISO: microfluidic protein isolation enables single-particle cryo-EM structure determination from a single cell colony.

Or from a single dish of HEK cell culture in the case of two membrane proteins.

Out in Nature Methods now! lnkd.in/gpyBSceg

Wonderful collaboration with the Efremov lab.

14.11.2025 18:38 β€” πŸ‘ 94    πŸ” 44    πŸ’¬ 3    πŸ“Œ 5
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Proteome-wide in silico screening for human protein-protein interactions Protein-protein interactions (PPIs) drive virtually all biological processes, yet most PPIs have not been identified and even more remain structurally unresolved. We developed a two-step computational...

Thrilled to share that the final piece of my PhD work is now on bioRxiv! biorxiv.org/content/10.1... With support from @nvidia and the @NSF, we used AlphaFold to screen 1.6M+ protein pairs, revealing thousands of potential novel PPIs. All data can be viewed at predictomes.org/hp

12.11.2025 21:26 β€” πŸ‘ 163    πŸ” 67    πŸ’¬ 5    πŸ“Œ 4

Join us at the Vienna BioCenter and @impvienna.bsky.social! Full disclaimer: I’m obviously biased but: mind-blowing facilities (!!!) and a great collaborative research culture make this an ideal place for anyone; especially suited to build up a lab. Plus Vienna is an amazing city to live in 😊

10.11.2025 21:30 β€” πŸ‘ 20    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
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HT-PELSA, a new proteomics tool by EMBL researchers, processes samples 100x faster and works directly with complex crude cell, tissue, and bacterial lysates – developments which could accelerate drug discovery and basic biological research πŸ’Š

πŸ”— www.embl.org/news/science...

05.11.2025 10:09 β€” πŸ‘ 28    πŸ” 10    πŸ’¬ 2    πŸ“Œ 0
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New paper alert! Scientists in Clemens Plaschka’s lab at the IMP and @juliusbrennecke.bsky.social's lab at
@imbavienna.bsky.social solved a decade-old puzzle, uncovering how the information molecule mRNA travels from the cell’s nucleus to its periphery. More: bit.ly/4nHcvys

06.11.2025 16:04 β€” πŸ‘ 67    πŸ” 29    πŸ’¬ 0    πŸ“Œ 1
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Alternate proteins from the same gene contribute differently to health and rare disease | Whitehead Institute Iain Cheeseman and colleagues reveal the underappreciated role of single genes producing multiple proteins in atypical presentations of rare disease, and present case studies of affected patients thro...

From an accidental discovery of hidden biology to a new framework to understanding and diagnosing rare disease. Thrilled to share the most recent work from our lab and the amazing Jimmy Ly.

wi.mit.edu/news/alterna...

07.11.2025 16:14 β€” πŸ‘ 52    πŸ” 16    πŸ’¬ 3    πŸ“Œ 2
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This Halloween, we have a spooky evolutionary story for you.
The brainchild of @delaconcepcionjc.bsky.social, Nick Irwin and our fantastic collaborators is now out in @natplants.nature.com www.nature.com/articles/s41...
Here’s why I love this work β€” and why I think you’ll enjoy it too. πŸ‘‡

31.10.2025 10:19 β€” πŸ‘ 88    πŸ” 43    πŸ’¬ 6    πŸ“Œ 1
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Very happy to share our latest work extending iterative immunofluorescence to in toto imaging of early zebrafish embryos (3D-4i), integrated with a 3D-dedicated image analysis pipeline! πŸŸπŸ”¬πŸ“Š
Huge kudos to Max Hess for this PhD milestone! πŸ’ͺ
@lucaspelkmans.bsky.social shorturl.at/cO0u7
Let's zoom in!

29.10.2025 14:20 β€” πŸ‘ 37    πŸ” 13    πŸ’¬ 4    πŸ“Œ 0

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