PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21795702-6 2011 Additionally, WWP1 had a strong preference for catalyzing the Lys-48-linked polyubiquitination of p27(Kip1) in vitro. Lysine 62-65 cyclin dependent kinase inhibitor 1B Homo sapiens 102-106