A modular strategy combining genetic code expansion with a selective amide bond-forming reaction enables the site-specific installation of lysine acylations on folded proteins. Acylboronates react sel...

Bacterial ATP-binding cassette (ABC) transporters can be utilized and engineered to transport non-canonical amino acids into Escherichia coli for highly efficient synthesis of proteins with novel func...

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...

Translation termination is essential in all living organisms because it ensures that proteins have lengths strictly defined by their genes. This universal process is mediated by peptide release factor...

Proteasomal degradation is a fundamental process for all eukaryotic life. A protein destined for degradation is first tagged with a polyubiquitin chain, which is selected by the proteasome. Different ...

A new lasso peptide antibiotic exhibits broad-spectrum activity against Gram-negative and Gram-positive bacteria by interfering with bacterial protein synthesis, is unaffected by common resistance mechanisms and shows no toxicity towards human cells.

SCF–FBXO31 scans proteins for C-terminal amidation and marks them for subsequent proteasomal degradation.

The pyrrolysyl pair has dominated noncanonical amino acids (ncAAs) incorporation in eukaryotes, but additional engineerable pairs are needed to further expand this toolbox. Although E. coli leucyl-tR....

Shen and Yin developed a technology named FUSEP to profile the E2-specific ubiquitome that makes use of a fusion between E2 and ubiquitin carrying a R74G point mutation, which leaves an LGGG remnant f...

Small-molecule ligands have been developed that covalently attach to their cognate RNA aptamers in vitro and in living cells. This strategy opens up new avenues for RNA imaging applications (for examp...