PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18052729-11 2007 However, GM-CSF-induced downregulation of Tyk2 and Jak1 tyrosine phosphorylation as well as Tyk2 protein levels likely contributed to the reduced Stat1 tyrosine phosphorylation. Tyrosine 56-64 Janus kinase 1 Homo sapiens 51-55