GART and cancer: Methylation is a common and critical form of protein post‐translational modification that regulates protein function and tumor development.[89, 90, 91, 92] Krushkal et al.[93] used Transcriptional Pharmacology Workbench (the bioinformatics tool) to identify that, in NCI‐60 cancer cells upon treatment with five antitumor agents, the transcriptional changes of GART and five other genes influenced DNA methylation and demethylation.