PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20708598-2 2011 It becomes active when membrane-bound cytochrome b(558), the redox core, is assembled with cytosolic p47(phox), p67(phox), p40(phox), and rac proteins to produce superoxide, the precursor for generation of toxic reactive oxygen species. Superoxides 162-172 pleckstrin Homo sapiens 101-104