PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15269203-10 2004 In addition, it was shown that NBS1, SMC1, and p53 were phosphorylated in an ATM-dependent manner, and p53 phosphorylation on serine 20 is dependent on CHK2 after irofulven treatment. irofulven 163-172 tumor protein p53 Homo sapiens 47-50 15269203-10 2004 In addition, it was shown that NBS1, SMC1, and p53 were phosphorylated in an ATM-dependent manner, and p53 phosphorylation on serine 20 is dependent on CHK2 after irofulven treatment. irofulven 163-172 tumor protein p53 Homo sapiens 103-106 10368691-2 1999 In this study we examined cytotoxicity of MGI 114 against human tumor cell lines (MCF7, MDA.MB.468, EJ1, J82, SCaBER, KG-1, HL60, and IMR-90) with differing expression of p53 and/or p21 (WAF1) tumor suppressor genes. irofulven 42-49 tumor protein p53 Homo sapiens 171-174 12855662-3 2003 We have also evaluated the influence of major resistance mechanisms, such as expression of multidrug resistance-associated drug efflux pumps, cisplatin resistance, loss of p53 function, and absence of mismatch repair on the cytotoxic activity of irofulven. irofulven 246-255 tumor protein p53 Homo sapiens 172-175 17118344-0 2007 Irofulven induces replication-dependent CHK2 activation related to p53 status. irofulven 0-9 tumor protein p53 Homo sapiens 67-70 17118344-9 2007 Overall, this study demonstrates that in response to irofulven-induced DNA damage, the activation of CHK2 is dependent on DNA replication and related to p53 status. irofulven 53-62 tumor protein p53 Homo sapiens 153-156 17172419-6 2006 Previously, we have shown that irofulven activates ATM and its targets, NBS1, SMC1, CHK2, and p53. irofulven 31-40 tumor protein p53 Homo sapiens 94-97