PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11301320-4 2001 ERKs phosphorylate GRIP1 at a specific site, Ser-736, the integrity of which is required for full growth factor induction of GRIP1 transcriptional activation and coactivator function. Serine 45-48 mitogen-activated protein kinase 1 Homo sapiens 0-4