PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12644468-8 2003 Consistent with this result, a covalent DNA-protein complex was trapped using purified human OGG1 or human nuclear or mitochondrial extracts with a DNA substrate containing an 8-oxoA:C base pair. 8-hydroxyadenine 176-182 8-oxoguanine DNA glycosylase Homo sapiens 93-97