@labhofmann.bsky.social
WEHI researchers have led a major global effort to create the first authoritative atlas for E3 ligases, resolving more than 18 years of inconsistencies in the ubiquitin field. Study led by Dr Ngee Kiat ‘Jake’ Chua & Dr Rebecca Feltham in @cellpress.bsky.social www.wehi.edu.au/news/new-enz...
And a new paper from the lab. A follow up to a previous study in which we elucidate the mechanism of the nuclear transport. Read the full story: www.nature.com/articles/s41...
A multivalent adaptor mechanism drives the nuclear import of proteasomes - Nature Communications
Nuclear protein homeostasis relies on proteasome import into the nucleus. Here the authors identify how assembled human proteasomes are transported across the nuclear pore complex and reveal a mechani...
nature.com
IMP@impvienna.bsky.social · 6mo agoTo regulate gene activity, proteasomes - waste disposal machines of cells - must enter the nucleus. IMP Researchers now show how the adaptor protein AKIRIN2 helps ferry this massive complex through the nuclear pore: https://www.nature.com/articles/s41467-026-69162-0
I am deeply saddened learning that my scientific hero Amos Bairoch has recently passed away. He will be remembered as the mastermind behind the SwissProt and many other endeavours in protein bioinformatics. There is a tribute web page at sib.swiss/amos/
Amos Bairoch — In Memoriam · Amos Bairoch remembrances
This page is a place to share memories, stories, and messages in honour of Amos Bairoch.
sib.swiss
‼️It was wonderful to have Professor Kay Hoffmann at the #AusUb25 - and even better to get the chance to interview him! Hear about his experiences in industry and academia as well as his love for proteins😁
ICYMI: New online: UBA6 specificity for ubiquitin E2 conjugating enzymes reveals a priority mechanism of BIRC6
UBA6 specificity for ubiquitin E2 conjugating enzymes reveals a priority mechanism of BIRC6
Nature Structural & Molecular Biology, Published online: 05 December 2025; doi:10.1038/s41594-025-01717-zRiechmann et al. uncover structural features governing ubiquitin transfer from ubiquitin-activating E1 enzymes UBA1 and UBA6 to specific E2 ubiquitin-conjugating enzymes, revealing a hierarchy of E2 activity with cognate E1s.
go.nature.com
For all #ubiquitin aficionados out there: Our new study, where we used an #alphafold based screen and found a new class of plant-specific DUBs, which cleave K63 chains and interfere with endocytosis at the plasma membrane. www.biorxiv.org/content/10.6...
DUCs are C2 domain containing plant-specific deubiquitinases stabilizing endocytic cargo at the plasma membrane
Deubiquitinases (DUBs) remove ubiquitin modifications from proteins in a substrate- or linkage-selective manner and regulate numerous cell-biological processes, including endocytosis. By performing ho...
biorxiv.org