BIRC5 and liver cancer: Under physiological condition, Csn6LKO liver cancer tissue demonstrated higher SPOP expression, less expression of MDM2, HMGCS1 and survivin (YAP1 target gene) when compared with Csn6fl/fl liver cancer tissue (Figure 6J,K), suggesting that CSN6‐MDM2 axis‐mediated SPOP ubiquitination and consequential HMGCS1 stabilization can be recapitulated in Csn6LKO mouse liver cancer.