PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7521688-4 1994 We also demonstrate that the DNA-binding protein STAT3 (also called the acute-phase response factor [APRF], activated by interleukin-6) is an early target of G-CSF-induced tyrosine phosphorylation. Tyrosine 172-180 interleukin 6 Homo sapiens 121-134