PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15240681-0 2004 SHP-1 and SHP-2 associate with immunoreceptor tyrosine-based switch motif of programmed death 1 upon primary human T cell stimulation, but only receptor ligation prevents T cell activation. Tyrosine 46-54 protein tyrosine phosphatase non-receptor type 6 Homo sapiens 0-5