PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9314552-3 1997 Macrophages derived from Syk-deficient (Syk-) mice were defective in phagocytosis of particles bound by FcgammaRs, as well as in many FcgammaR-induced signaling events, including tyrosine phosphorylation of a number of cellular substrates and activation of MAP kinases. Tyrosine 179-187 spleen tyrosine kinase Mus musculus 25-28