part of DNA strand exchange activity https://github.com/geneontology/go-ontology/issues/20964 Note that this term represents activities that do not break or form phosphodiester bonds, and is therefore not a parent of 'site-specific recombinase activity ; GO:0009009'. Catalysis of the identification and base-pairing of homologous sequences between single-stranded DNA and double-stranded DNA. GO:0000150 molecular_function recombinase activity strand transferase strand exchange activity Reactome:R-HSA-912458 RecA-family recombinase activity DNA recombination catalytic activity, acting on DNA