PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11825342-8 2002 Cells challenged with MTX and rescued by subsequent addition of U73343, showed enhanced caspase-3 activity 48 hr after the initial insult, consistent with activation of the apoptotic program. U 73343 64-70 caspase 3 Bos taurus 88-97