PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25505069-8 2015 SQSTM1 was phosphorylated on serine-351 and -403, while Keap1 was polyubiquitinated with lysine-63-ubiquitin chains, modifications known to increase their mutual affinity and interaction, leading to Keap1 degradation and Nrf2 activation. Serine 29-35 sequestosome 1 Homo sapiens 0-6