Proteasomal degradation of the tumour suppressor FBW7 requires branched ubiquitylation by TRIP12

oleh: Omar M. Khan, Jorge Almagro, Jessica K. Nelson, Stuart Horswell, Vesela Encheva, Kripa S. Keyan, Bruce E. Clurman, Ambrosius P. Snijders, Axel Behrens

Format: Article
Diterbitkan: Nature Portfolio 2021-04-01

Deskripsi

The tumor suppressor FBW7 is a substrate adaptor for the E3 ubiquitin ligase complex SKP1-CUL1-F-box (SCF) and itself a target for ubiquitylation. Here, the authors show that TRIP12 mediates branched K11-linked ubiquitylation of FBW7, to regulate its stability and thus abundance of a subset of SCFFBW7 substrates.