CCNB1 and hepatocellular carcinoma: In addition, the WD repeat‐containing protein 4 (WDR4) promotes G2/M phase transition and hepatocellular carcinoma metastasis by binding eukaryotic initiation translation factor 2A (EIF2A) to Cyclin B1 (CCNB1) mRNA to increase CCNB1 translation.13