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

Peptide passports: Programmable import fuels novel protein building blocks Proteins with noncanonical amino acids can serve as precision tools and therapeutics, but their creation is often inefficient. In a recent Nature publication, Iype et al. engineered bacteria to ferry designer amino acids as peptide cargos, overcoming a major uptake bottleneck and enabling robust, scalable incorporation under routine culture conditions.

Peptide passports: Programmable import fuels novel protein building blocks

A Trojan horse for artificial amino acids Researchers from ETH Zurich have succeeded in introducing large quantities of unnatural amino acids into bacteria, enabling the creation of innovative and highly efficient designer proteins. These can...

Researchers from ETH Zurich have succeeded in introducing large quantities of unnatural #AminoAcids into #Bacteria, enabling the creation of innovative and highly efficient designer proteins. These can be used as more efficient catalysts or more effective #Drugs.

A non-enzymatic role of Nudix hydrolase 5 in repressing purine de novo synthesis Folate metabolism is intricately linked to purine de novo synthesis through the incorporation of folate-derived one-carbon units into the purine scaffold. By investigating chemical and genetic depende...

New in @science.org 🧬

What if an enzyme you thought you knew turned out to control metabolism in a completely new way?

We found that NUDT5 acts as a molecular handbrake on purine synthesis, reshaping how cells make DNA building blocks and respond to cancer drugs.

www.science.org/doi/10.1126/...

NUDT5 regulates purine metabolism and thiopurine sensitivity by interacting with PPAT Cells generate purine nucleotides through de novo purine biosynthesis (DNPB) and purine salvage. Purine salvage represses DNPB to prevent excessive purine nucleotide synthesis through mechanisms that ...

1/New paper from Zheng Wu, Phong Nguyen et al. @cri-utsw.bsky.social shows how cells balance the two pathways that produce purine nucleotides: de novo purine biosynthesis (DNPB) and purine salvage. The surprising mechanism involves NUDT5, a Nudix hydrolase

www.science.org/doi/10.1126/...

Super proud of this story! ☺️ Huge thanks to @taruniype.bsky.social for the amazing work - and to @klanglab.bsky.social for the constant support! The first time we saw that phenomenon actually goes all the way back to my Master’s thesis in 2016 🫣 Every now and then, persistence pays off 🤞

The functional landscape of the human ubiquitinome Protein ubiquitination regulates cell biology through diverse avenues, from quality control-linked protein degradation to signaling functions such as modulating protein-protein interactions and enzyme...

new preprint: Ubiquitin is a protein modification linked with degradation but known to regulate other functions. Over 100k ubiquitination sites have been discovered and here we (@julianvangerwen.bsky.social + others) try to prioritize those most critical to the cell www.biorxiv.org/content/10.1...

Hi Bluesky! New here and a bit surprised not to see a starter pack dedicated to Chemical Biology so.. here we go!
go.bsky.app/DDpDuvo

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