PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19717351-6 2009 The combination of MMS and 4-AN resulted in ATM and Chk2 phosphorylation and the time course of phosphorylation for both kinases correlated with the S phase delay. 4-an 27-31 checkpoint kinase 2 Homo sapiens 52-56