PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16507591-9 2006 The constitutive nucleocytoplasmic shuttling of STAT2 does neither depend on the presence of IRF9 or STAT1, nor does it require tyrosine phosphorylation. Tyrosine 128-136 signal transducer and activator of transcription 2 Homo sapiens 48-53