PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29906232-6 2018 PKR inactivation by PKR siRNA or its phosphorylation inhibitor 2-aminopurine significantly attenuated PA-induced HUVEC senescence by reversing Sirt1 activity and its downstream signaling. 2-Aminopurine 63-76 eukaryotic translation initiation factor 2 alpha kinase 2 Homo sapiens 0-3