ubc13

NSC-697923 (2-[(4-methylphenyl)sulfonyl]-5-nitrofuran), a potent inhibitor of UBE2N (ubiquitin-conjugating enzyme E2 N, Ubc13), exhibits its role in inducing cell death in neuroblastoma (NB) cells through two distinct mechanisms. In p53 wild-type NB cells, NSC-697923 promotes the nuclear importation of p53, thereby triggering cell death. Meanwhile, in p53 mutant NB cells, NSC-697923 activates the JNK-mediated apoptotic pathway, leading to cell death. Additionally, NSC-697923 inhibits DNA damage and NF-κB signaling, further contributing to its antitumor activity.

C25-140 is a small-molecule inhibitor of TRAF6-Ubc13.

Leucettamol A is a leukotriene B4 receptor antagonist isolated from the marine sponge Leucetta microraphis. It inhibits the formation of a complex composed of the ubiquitin E2 enzyme Ubc13 and Uev1A.