Accepts the ubiquitin-like proteins SUMO1, SUMO2, SUMO3 and SUMO4 from the UBLE1A-UBLE1B E1 complex and catalyzes their covalent attachment to other proteins with the help of an E3 ligase such as RANBP2 or CBX4. Can catalyze the formation of poly-SUMO chains. Necessary for sumoylation of FOXL2 and KAT5. Essential for nuclear architecture and chromosome segregation. Sumoylates p53,TP53 at 'Lys-386'
Identification of the structural and functional human homolog of the yeast ubiquitin conjugating enzyme UBC9.Yasugi T., Howley P.M.Nucleic Acids Res. 24:2005-2010(1996)
Research Topic:Cell Cycle