PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12626122-6 2003 In contrast, 1,4-naphthoquinone, which preferentially undergoes one-electron reduction, inhibited SAPK at high concentrations, but failed to activate SAPK at any concentration tested. 1,4-naphthoquinone 13-31 mitogen-activated protein kinase 9 Homo sapiens 98-102