PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31337255-5 2019 We identified a hitherto-unknown FBXW7-interacting protein, p53, which is phosphorylated by glycogen synthase kinase 3 at serine 33 and then ubiquitylated by SCF(FBXW7) and degraded. Serine 122-128 tumor protein p53 Homo sapiens 60-63