TOP2A is SUMOylated with SUMO1 (Mao et al. 2000, Dawlaty et al. 2008, Matafora et al. 2009, Impens et al. 2014). SUMOylation is observed in response to TOP2A-mediated DNA damage induced by teniposide.
van Deursen, JM
SUMO transferase activity of SUMO1:C93-UBE2I [cytoplasm]