PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7539035-9 1995 We propose that the interaction of the p56lck SH2 domain with zeta-associated tyrosine-phosphorylated ZAP-70 and/or Syk enables CD4 to associate with antigen-stimulated TCR/CD3/zeta complexes. Tyrosine 78-86 T cell receptor beta variable 20/OR9-2 (non-functional) Homo sapiens 169-172