RRM2 and hepatocellular carcinoma: Step2: By conjointly analyzing the differentially expressed metabolic rate‐limiting enzymes from RNA‐seq data of HCC animal model and TCGA data, 12 transcripts were overlapped (RRM1, SQLE, PCK1, PYGB, G6PD, PLAT, ACSL1, RRM2, UCK2, ASS1, FBP1 and IMPDH1).