PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 24694247-1 2014 Human DNA polymerase beta (polbeta) inserts, albeit slowly, T opposite the carcinogenic lesion O6-methylguanine (O6MeG) ~30-fold more frequently than C. To gain insight into this promutagenic process, we solved four ternary structures of polbeta with an incoming dCTP or dTTP analogue base-paired with O6MeG in the presence of active-site Mg(2+) or Mn(2+). 2'-deoxycytidine 5'-triphosphate 263-267 DNA polymerase beta Homo sapiens 6-25