PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25248562-6 2015 Moreover, the Erk-mediated metastatic action was abolished by the mutation of leucine into arginine within the heptad leucine repeat region, which affects protein-protein interactions. Leucine 78-85 mitogen-activated protein kinase 1 Homo sapiens 14-17