PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1657956-4 1991 12-O-Tetradecanoylphorbol-13-acetate (TPA), a distinct tumor promoter and protein kinase C activator, also induces serine/threonine phosphorylation of the EGF receptor and is known to modulate receptor functions. Serine 115-121 epidermal growth factor receptor Homo sapiens 155-167