MDM2 polyubiquitinates RUNX3 on lysine residues K94 and K148. MDM-mediated ubiquitination of RUNX3 is inhibited by p14-ARF (Chi et al. 2009).
Lee, KS, Lee, YH, Lee, JW, Bae, SC, Kim, J, Park, WY, van Wijnen, AJ, Ito, Y, Chi, XZ, Oh, BC, Wee, H, Stein, GS, Kim, WJ
ubiquitin protein ligase activity of RUNX3:p-S166,S188-MDM2 dimer [nucleoplasm]
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