We observed enrichment for several immune system related pathways in modules associated with PD, particularly in Module 8 (B-cell receptor signalling, Asthma, Allograft rejection, Graft vs host disease, Intestinal immune network for IgA production, Autoimmune thyroid disease, Antigen processing and presentation and Systemic lupus erythematosus KEGG pathways). The gene discussed is CD79A; the disease is systemic lupus erythematosus.