PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8702918-8 1996 268, 15523-15530), we obtained a cytosolic fraction from A431 cells that specifically dephosphorylated 32Pi-labeled c-Jun protein used as substrate in an immunocomplex phosphatase assay. 32pi 103-107 Jun proto-oncogene, AP-1 transcription factor subunit Homo sapiens 116-121