PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15647510-0 2005 The accumulation of MMS-induced single strand breaks in G1 phase is recombinogenic in DNA polymerase beta defective mammalian cells. Methyl Methanesulfonate 20-23 DNA polymerase beta Homo sapiens 86-105 15647510-4 2005 When replicating Pol beta null cells are treated with MMS, a rapid phosphorylation of histone H2AX is detected in the nuclei of S phase cells, indicating that double strand breaks (DSB) are formed in response to unrepaired SSB. Methyl Methanesulfonate 54-57 DNA polymerase beta Homo sapiens 17-25