PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2521626-2 1989 In contrast, poly(dT)-RecA-ADP complexes, which are inactive for cleavage of LexA protein, become fully active in the presence of AlF4- or BeF3- ions. tetrafluoroaluminate 130-134 RAD51 recombinase Homo sapiens 22-26