– PELI is a family of E3 ubiquitin ligases that regulate protein activity through a post-translational modification, ubiquitination. PELI1 may function to control inadvertent activation of RIP3, thus preventing aberrant cell death and maintaining cellular homeostasis. PELI1 might participate in B-cell maturation or oncogenic activation of aggressive B-cell lymphomas, both during and after germinal center stages.