<b/> Blocking dimerization and stimulating protein degradation are two mechanisms known to inhibit BRAF activity. The study reported by Wan and colleagues identifies BRAF as a substrate of the APC/CFZR1-ubiqutin-proteasome system. The interaction between FZR1 and BRAF also induces a conformational change that disrupts BRAF dimerization. These findings identify a dynamic interplay between FZR1 and BRAF with strong implications for cell-fate determination and the tumor suppressor role of FZR1. Cancer Discov; 7(4); 356-8. ©2017 AACRSee related article by Wan et al., p. 424.
©2017 American Association for Cancer Research.