PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20236090-10 2010 Importantly, alanine substitution of the four C-terminal phosphorylation sites markedly decreased the half-life of ERK3 in mitosis, thereby linking phosphorylation to the stabilization of the kinase. Alanine 13-20 mitogen-activated protein kinase 6 Homo sapiens 115-119