PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9837891-1 1998 The efflux of protons through a H+ channel acts as the charge compensation pathway for the electrogenic generation of superoxide (O-2) by human neutrophil NADPH oxidase. Superoxides 118-128 immunoglobulin kappa variable 1D-39 Homo sapiens 130-133