PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12377938-5 2002 Additionally, we confirm CD227 expression by activated human T cells and show for the first time that the CD227 cytoplasmic domain is tyrosine-phosphorylated in activated T cells and DC and is associated with other phosphoproteins, indicating a role in signaling. Tyrosine 134-142 mucin 1, cell surface associated Homo sapiens 106-111