PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21922150-9 2012 Treatment of PA-1 cells with 10 microM tamoxifen resulted in an increase in the levels of p21, p27, p16 and phospho-pRb, indicating typical G1 arrest. Tamoxifen 39-48 zinc ribbon domain containing 2 Homo sapiens 107-110