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Piotr Draczkowski

@pdracakowski.bsky.social
21 followers 15 following 6 posts

Bioinformatician / Research engineer in structural biology @SciLifeLab Outdoor and analogue photography enthusiast.

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Piotr Draczkowski @pdracakowski.bsky.social · 15/10/2025
If you're curious about how cells quickly eliminate misfolded proteins produced under proteotoxic stress or mitotic substrate during cell cycle progression, check out our latest article in Nature Communications: doi.org/10.1038/s414...
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Structural basis of K11/K48-branched ubiquitin chain recognition by the human 26S proteasome - Nature Communications
K11/K48 branched ubiquitin chains regulate protein degradation and cell cycle progression. Here, the authors report the structural basis of how such a branched ubiquitin chain is recognized by the hum...
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Reposted by Piotr Draczkowski
asibc512.bsky.social @asibc512.bsky.social · 15/10/2025
What a day! We published two papers describing the lives of proteins from Alpha shorturl.at/ZeAG7 to Omega shorturl.at/b79Eu Seeing these processes through the lens of structural biology is so satisfying
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Reposted by Piotr Draczkowski
asibc512.bsky.social @asibc512.bsky.social · 15/10/2025
We discovered how an engineered ribosome arrest peptide (eRAP) acts as a built-in “pause button” to precisely control protein synthesis. eRAP merges two natural stalling systems to stop the ribosome at just the right time — shaping how nascent proteins begin to fold. academic.oup.com/nar/article/...
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Reposted by Piotr Draczkowski
asibc512.bsky.social @asibc512.bsky.social · 15/10/2025
Excited to share our Nature Communications paper 🎉 rdcu.be/eK7wG
We uncovered by cryoEM how the human proteasome recognizes branched K11/K48 ubiquitin chains through a new K11-binding site in the RPN2 subunit, revealing how the proteasome precisely identifies targets for rapid turnover. #cryoEM
rdcu.be
Structural basis of K11/K48-branched ubiquitin chain recognition by the human 26S proteasome
Nature Communications - K11/K48 branched ubiquitin chains regulate protein degradation and cell cycle progression. Here, the authors report the structural basis of how such a branched ubiquitin...
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Piotr Draczkowski @pdracakowski.bsky.social · 14/01/2025
Here’s a brief teaser for our latest preprint reporting the first structures of the K11/K48-branched Ub chain bound to the human proteasome: youtu.be/lAZrYsnoLBc?... Check the full text for more details: biorxiv.org/content/10.1... Thx to @asibc512 for making this possible!
youtu.be
Structural basis of a K11/K48-branched ubiquitin chain bound to the 26S human proteasome
YouTube video by Academia Sinica IBC512
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