Furthermore, 17 proteins that are included in the integrated annotations for Ubiquitin and Ubiquitin-like Conjugation Database (iUUCD 2.0) (Zhou et al., 2018) and 2 proteins that are catalytically active subunits of the immunoproteasome as well as the proteasome activator subunit beta (PA28beta) were detected with altered protein abundance upon infection (Table 1). The gene discussed is PSME2; the disease is infection.