PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18813807-7 2008 Furthermore, inhibition of Rac1 reduced phosphorylation of paxillin, a focal adhesion component and a downstream effector of JNK, at serine 178 (Ser178). Serine 133-139 mitogen-activated protein kinase 8 Homo sapiens 125-128