Proteasome-Associated Autoinflammatory Syndrome 4, also known as praas4, is related to proteosome-associated autoinflammatory syndrome 4 and proteasome-associated autoinflammatory syndrome 1. An important gene associated with Proteasome-Associated Autoinflammatory Syndrome 4 is PSMG2 (Proteasome Assembly Chaperone 2). Affiliated tissues include skin and skeletal muscle, and related phenotypes are splenomegaly and hepatomegaly