p53 Activator 13 (compound 11) is a 6mA methyltransferase CamA inhibitor and a p53 activator. p53 Activator 13 intercalates into CamA-bound DNA via the minor groove, causing a conformational shift that moves the catalytic domain away from the DNA and elicits DNA damage response via p53 activation. p53 Activator 13 can be utilized in cancer research.