PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9342364-11 1997 Notably, this RA-signaled cyclin D1 proteolysis depended on the C-terminal PEST sequence, a region rich in proline (P), glutamate (E), serine (S), and threonine (T). Serine 135-141 cyclin D1 Homo sapiens 26-35