A C-degron regulates Chk1 kinase by allowing stability of inactive Chk1 and by making it short- lived upon activation | PNAS The Arg/N-degron pathway of Saccharomyces cerevisiae is mediated by two interacting E3 ubiquitin ligases, Ubr1 and Ufd4. We show here that the mito...

A C-degron regulates Chk1 kinase by allowing stability of inactive Chk1 and by making it short- lived upon activation www.pnas.org/doi/10.1073/...

The ribosome-associated N-terminal acetyltransferase B coordinates global proteostasis and autophagy in plants by creating Ac/N-degrons - Nature Communications Protein N-terminal acetylation profoundly influences protein fate. Here, the authors establish NatB as a central regulator of the interplay between ubiquitin–proteasome system and autophagy, and highl...

Resistance to prolonged darkness in plants steered by N-terminal acetylation | New study by Gong et al. Markus Wirtz lab @giglionelab.bsky.social Tanja Bange lab #NatB #autophagy #N-degron #proteostasis www.nature.com/articles/s41...

NAA40 and NAC cooperate in co-translational histone acetylation in humans Nature Communications - N-terminal histone acetylation by human NAA40 alters epigenetic signaling and affects gene regulation. Here, the authors combine biochemistry and cryo-EM to unravel the...

How are histones acetylated as they emerge from the ribosome? We show that NAA40 cooperates with the NAC complex to enable co-translational acetylation of H2A/H4, revealing NAC as a coordinator of nascent protein modification. Read more about our collaboration with @kirmizislab.bsky.social #cryoEM

A synthetic ERFVII-dependent circuit in yeast sheds light on the regulation of early hypoxic responses of plants | PNAS Plants face hypoxic conditions either chronically, as particular tissues are characterized by fluctuating or stable low oxygen levels, or acutely, ...

Finally officially out!!

www.pnas.org/doi/10.1073/...

We moved the main oxygen sensing machinery from plants to yeast and we learned a few things!

Co-translational control of protein stability and quality in plants Abstract. Proteostasis relies on the coordinated control of protein synthesis, folding, modification and degradation, and an increasingly clear picture is

My review “Co-translational control of protein stability and quality in plants” is now online at @jxbotany.bsky.social, in which I describe how co-translational processing and ribosome-associated quality control together establish protein stability and fate early in synthesis. tinyurl.com/5dhhz9h6

8 days left to register | 28 invited speakers | Keynotes from F. Ulrich Hartl, Roland Beckmann and Michael Rapé | #chaperones #degradation #ubiquitin #cryoEM #acetylation #lipidation #ribosomes #proteins
proteintermini.org/meeting/

Actin N-terminal maturation can be blocked by a butynamide stereoprobe which acts as an ACTMAP inhibitor. Preprint by Xiong et al. Benjamin Cravatt and Bruno Melillo. @ispt-proteinterm.bsky.social
www.biorxiv.org/content/10.6...

Join us in Palermo!
FEBS Workshop Protein Termini 2026: the power of protein termini across bacteria, plants, and animals—from ribosome biology to proteostasis and applications. Deadline: 3 March 2026
proteintermini.org/meeting
#ProteinTermini #Proteostasis #FEBS #EMBO @iubmb.bsky.social

Join us at the @crick.ac.uk for the 2026 meeting of the UK proteostasis community!
We especially encourage students and postdocs to attend and share their work. All talks (except the keynotes) will be selected from abstracts.

Surprisingly: "Conditional stability of HY5 through the ATE N-degron pathway regulates environmental responses in Arabidopsis thaliana".
The shining bounds of N-degron pathway influence expands! @charlene-kunaka.bsky.social www.biorxiv.org/content/10.6...

Protein event of the year - sign up today! See you at beautiful Palazzo dei Normanni in Palermo for the FEBS 2026 Protein Termini Workshop.
#ProteinTermini #Proteostasis #ProteinModifications #StructuralBiology #PalazzoDeiNormanni #Palermo2026
proteintermini.org/meeting/

Remember to register for this year's Protein Termini FEBS Advanced course. Keynote by Roland Beckmann @beckmannlab.bsky.social "It takes more than two to tango: structural basis and coordination of co-translational N-terminal nascent chain modification" www.conferencecentral.org/webpage/view...

Protein degradation in Turnip - an adapted Arg/N-degron pathway. Preprint from Brian Mooney et al. Emmanuelle Graciet lab. www.biorxiv.org/content/10.6...

Ribosome-NAC collaboration: A regulatory platform for cotranslational chaperones, enzymes, and targeting factors Protein biogenesis requires the ribosome to collaborate with a diverse set of cotranslational factors that shape the fate of nascent chains. These int…

Ribosome-NAC collaboration: A regulatory platform for cotranslational chaperones, enzymes, and targeting factors. New review out in @cp-molcell.bsky.social from Elke Deuerling's lab. www.sciencedirect.com/science/arti...

Complexity at the ribosomal polypeptide tunnel exit. The major N-terminal acetyltransferase NatA may form different complexes on the ribosome to facilitate protein maturation. By Marius Klein & Klemens Wild in Irmgard Sinning's lab BZH & Nina McTiernan in my lab. www.nature.com/articles/s41...

This is how co-translational N-terminal myristoylation occurs on the ribosome. NMT1 acts together with NAC, but after the release of MetAP. Cryo-EM study by Timo Denk et al. @beckmannlab.bsky.social @giglionelab.bsky.social www.nature.com/articles/s41...

Intricate regulation of Src kinases via N-terminal modifications and specific degradation pathways. A novel degradation pathway involving the CUL4A-DDB1-DCAF10 E3 ligase found by Kremer et al. Tanja Bange lab @andrea-musacchio.bsky.social @ispt-proteinterm.bsky.social www.nature.com/articles/s41...

Mechanism of cotranslational modification of histones H2A and H4 by MetAP1 and NatD NAC enables cotranslational N-terminal processing of histones H2A and H4 by recruiting MetAP1 and NatD at the ribosomal tunnel.

Last X-Mas, the ribosome gave you methionine,
but the very next day, MetAP took it away.
This year, to save histones from tears,
NatD gives you an acetyl group. ⭐️

Explore our latest paper with the Deuerling lab @uni-konstanz.de and Shu-ou Chan lab @caltech.edu!

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

Indeed, most Nt-acetylation events occur co-translationally in eukaryotes. Likely to assure an immediate and proper protein maturation, incl. folding, targeting & protection from Ubiquitin E3s. Also post-translational Nt-acetylation: actin (NAA80), transmembrane proteins (NAA60),++ & more to come🤓

Functional divergence of the Arg/N-degron pathway between the crop Brassica rapa and the model plant Arabidopsis thaliana www.biorxiv.org/content/10.64898/2025.12...

HYPK promotes N-terminal protein acetylation through rapid ribosome exchange of NatA Huntingtin-interacting protein K (HYPK) promotes the activity of N-terminal acetyltransferase A (NatA), which cotranslationally acetylates 40% of the eukaryotic proteome. Kinetic and in-cell measurements revealed that HYPK acts as a ribosome exchange factor for NatA, enabling its access to and acetylation of the translatome.

Online Now: HYPK promotes N-terminal protein acetylation through rapid ribosome exchange of NatA Online now:

Just registered for FEBS advanced workshop Protein termini 2026 in Palermo #proteintermini2026 (?) Looking forward to a great meeting. @ispt-proteinterm.bsky.social
www.conferencecentral.org/webpage/view...

We’ve made some new tools to manipulate N-recognins. Check them out in our preprint.
www.biorxiv.org/content/10.1...

Want to assess N-terminal acetyltransferases without radioactive labelling or mass spec? Look here! @ispt-proteinterm.bsky.social @cellsignal.com

See you at Palazzo dei Normanni in Palermo for the 2026 Protein Termini Conference | Co- and post-translational modifications | Proteolytic processing and degradation pathways | Microbes, plants, animals #ProteinTermini2026 #Proteostasis #ProteinModifications #PalazzoDeiNormanni #Palermo2026

Daniel Gibbs Lab Welcome to the lab website of Professor Daniel Gibbs @ University of Birmingham

We are advertising a PhD project investigating a cellular mechanism that ensures protein quality control during mRNA translation in plants. Please get in touch on here or via email if you are interested and I can provide further details!

Lab website: sites.google.com/site/danielg...

NAA60 facilitates LRRC8A- and LRRC8D-mediated platinum drug uptake - Communications Biology Genome-wide CRISPR/Cas9 screening identifies the N-terminal acetyltransferase NAA60 to facilitate cis- and carboplatin drug sensitivity, most likely by neutralizing Nt acetylation of the LRRC8A/D VRAC subunits regulating substrate permeability.

Uptake of anti-cancer drugs depends on N-terminally acetylated anion channels | @ispt-proteinterm.bsky.social www.nature.com/articles/s42...

A Cell-Potent Bisubstrate Inhibitor to Probe NatD Acetyltransferase Activity N-terminal acetyltransferase D (NatD) is a highly selective enzyme that acetylates the α-N-terminal amine of histones H4 and H2A, which share the SGRGK motif. Elevated NatD expression has been observe...

A Cell-Potent Bisubstrate Inhibitor to Probe NatD Acetyltransferase Activity | The inhibitor effectively reduced cellular Nα-acetylation on histone H4, leading to reduced migration in lung cancer cells | @acs.org ACS Chemical Biology @ispt-proteinterm.bsky.social pubs.acs.org/doi/10.1021/...

Protein N-terminal acetylation regulates the growth of rice plants | #NAA30 #NatC #rice #acetylation www.sciencedirect.com/science/arti...

Two new volumes of Methods in Enzymology with 29 chapters/papers on Protein termini methods and reviews are now out! Thx to all authors!🙌 @ispt-proteinterm.bsky.social #N-degron #prenylation #myristoylation #formylation #arginylation #oxidation #acetylation www.sciencedirect.com/bookseries/m...