PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15059847-2 2004 Lck-mediated tyrosine phosphorylation of signaling motifs (ITAMs) in the CD3-zeta subunits of the TCR is an initial step in the transduction of signaling cascades. Tyrosine 13-21 LCK proto-oncogene, Src family tyrosine kinase Homo sapiens 0-3