PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1328203-2 1992 According to recent studies performed in cell-free systems, Rac1 and Rac2 proteins may be involved in the activation of NADPH-oxidase, the superoxide-generating enzymatic complex active in phagocytes. Superoxides 139-149 Rac family small GTPase 2 Homo sapiens 69-73 1328203-3 1992 Epstein-Barr virus (EBV) transformed B lymphocytes, which express rac1 and rac2 genes, also efficiently release superoxide anions when triggered by various cell surface stimuli. Superoxides 112-129 Rac family small GTPase 2 Homo sapiens 75-79