PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11267876-3 2001 In this study, we demonstrate that cortactin activates Arp2/3 complex based on direct visualization of filament networks and pyrene actin assays. pyrene 125-131 actin related protein 2 Homo sapiens 55-59