PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10190138-4 1998 The permeabilized mast cells were stimulated to generate O2- by the addition of Ca2+, phospholipase A2 (PLA2) and arachidonic acid. Superoxides 57-59 phospholipase A2 group IB Rattus norvegicus 86-102 10190138-4 1998 The permeabilized mast cells were stimulated to generate O2- by the addition of Ca2+, phospholipase A2 (PLA2) and arachidonic acid. Superoxides 57-59 phospholipase A2 group IB Rattus norvegicus 104-108