Nuclear factor-kappa B (NF-κB) signaling is regulated by ubiquitin to maintain immune homeostasis. Here the authors show that a peptidylprolyl isomerase, CYPJ, blocks TAB2/3 or LUBAC ubiquitin chain sensing and suppress NF-κB activation, with CYPJ-deficiency leading to susceptibility to inflammatory stimuli.
- Chunjie Sheng
- Chen Yao
- Shuai Chen