Nature Communications (Aug 2019)
Arkadia/RNF111 is a SUMO-targeted ubiquitin ligase with preference for substrates marked with SUMO1-capped SUMO2/3 chain
Abstract
The cellular functions of poly-SUMO chains of different compositions are not fully understood. Here, the authors characterize Arkadia/RNF111 as a SUMO-targeted ubiquitin ligase that recognizes proteins with hybrid SUMO1-capped SUMO2/3 chains and targets them for proteasomal degradation.