PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17241873-12 2007 CONCLUSIONS: Our data demonstrate that 5-ASA causes cells to reversibly accumulate in S phase and activate an ATR-dependent checkpoint. Mesalamine 39-44 ATR serine/threonine kinase Homo sapiens 110-113