asibc512.bsky.social
@asibc512.bsky.social
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
October 15, 2025 at 1:12 PM
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
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...
rdcu.be
October 15, 2025 at 10:16 AM
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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academic.oup.com
October 15, 2025 at 2:28 AM