sentences:  Phosphorylated ATF2 inhibits the formation with JDP2 in vitro while phosphorylated JDP2 undergoes proteosomal degradation.It contains putative SUMO modification of lysine (Lys) residue at position 65, and recruits interferon regulatory factor 2 binding protein 1 (IRF2BP1), which acts as an E3 ligase.Phosphorylation of Thr at position 148 is detected in response to various stress conditions such as UV irradiation, oxidative stress, and anisomycin treatment or JDP2 is also regulated by other kinases such as p38 MAPK and doublecortin like protein kinase.