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Julian Ehrmann

@julianehrmann.bsky.social

T32 NRSA funded Postdoc @WuLabHarvard PhD @clausenlab.bsky.social Inflammasomes, innate immunity, nephropathy, ubiquitin ligases, cryo-EM

1,374 Followers  |  667 Following  |  4 Posts  |  Joined: 10.11.2024  |  1.6311

Latest posts by julianehrmann.bsky.social on Bluesky

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Glad to share the final version of our story about the UBR4 complex, an E4 ligase protein quality control hub @science.org. Now with more cryo-EM structures and a deeper dive into substrate recognition, especially escaped mitochondrial proteins @clausenlab.bsky.social www.science.org/doi/10.1126/...

28.08.2025 18:54 β€” πŸ‘ 80    πŸ” 30    πŸ’¬ 7    πŸ“Œ 1
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A split-site E3 ligase mechanism enables ZNFX1 to ubiquitinate and cluster single-stranded RNA into ubiquitin-coated nucleoprotein particles Grabarczyk et al. show the structure and mechanism of a non-canonical ubiquitin ligase, which is activated through nucleic-acid-induced oligomerization and is critical for cell survival during immune ...

Happy to share our work on the structure and function of the unusual E3 ligase ZNFX1 @cp-cell.bsky.social. It uses a nucleic acid-activated transthiolation mechanism, ubiquitinating and clustering RNA to protect cells in an immune response. @clausenlab.bsky.social
www.cell.com/cell/fulltex...

27.08.2025 19:04 β€” πŸ‘ 85    πŸ” 40    πŸ’¬ 6    πŸ“Œ 0

academictree.org

16.04.2025 14:42 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Working on Death Domain Fold proteins (CARD, Pyrin, DED, DD)? Check out our new paper for some more perspective:
www.pnas.org/doi/10.1073/pnas.2426986122

20.02.2025 18:26 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Happy to share our new study showing that the Ub E3 ligase SIAH1, known to dimerise via its C-term SBD, also dimerises via its N-term RING. When these tendencies combine, full-length SIAH1 forms multimers, which might explain its clustering in cells & preference for aggregated/multimeric substrates.

06.02.2025 09:29 β€” πŸ‘ 57    πŸ” 16    πŸ’¬ 4    πŸ“Œ 1
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Best way to start 2025! Thrilled to share our Nature paper about the structures of axonemal components from sperm flagella and from epithelial cilia of the oviduct and brain ventricles. Great collaboration with Tzviya Zeev-Ben-Mordehai and @alanbrownhms.bsky.social

www.nature.com/articles/s41...

01.01.2025 17:20 β€” πŸ‘ 109    πŸ” 34    πŸ’¬ 4    πŸ“Œ 2
Architecture of the 1.3 MDa complex of human UBR4 (2 x UBR4/KCMF1/CALM1). Picture shows top and side views of the cryo-EM density map and the modeled structure, colored by protein components and domains.

Architecture of the 1.3 MDa complex of human UBR4 (2 x UBR4/KCMF1/CALM1). Picture shows top and side views of the cryo-EM density map and the modeled structure, colored by protein components and domains.

πŸŽ„ xmas preprint πŸŽ„ we are excited to share our cryo-EM structure of UBR4 in complex with KCMF1 and CALM1. the PQC ligase forms a massive ubiquitination arena, primed to amplify ubiquitin chains (E4 activity) and boost degradation of defective proteins. www.biorxiv.org/content/10.1...

21.12.2024 10:46 β€” πŸ‘ 132    πŸ” 37    πŸ’¬ 3    πŸ“Œ 4

giant e3 ligases shaking in their boots as Dan crosses another one off the list

21.12.2024 12:57 β€” πŸ‘ 14    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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Are you a #postdoc with an innovative vision for starting your own lab in #Syntheticbiology, #Genomics, #GeneRegulation, #Development, #Cancer, #Immunology or #InfectionBiology?

@IMPvienna is inviting applications for group leader positions: www.imp.ac.at/career/open-...

Pls share!

19.11.2024 15:08 β€” πŸ‘ 46    πŸ” 37    πŸ’¬ 0    πŸ“Œ 1
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We are still considering postdoc candidates for the post advertised below. A 2-year contract beginning in 2025 to work on protein SUMO E3 ligases and the nucleosome.

16.11.2024 06:43 β€” πŸ‘ 14    πŸ” 8    πŸ’¬ 0    πŸ“Œ 5

Check out this list of ubiquitin and Ubl profiles to follow. Repost if you want me to add you to it. Let’s create a good community here ☁️ go.bsky.app/3VPQofn

15.11.2024 19:38 β€” πŸ‘ 49    πŸ” 48    πŸ’¬ 6    πŸ“Œ 1

Hard to convey how positively working with Marcin will impact your science- can not recommend enough.

17.11.2024 19:22 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

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