passages.id: split_4_test_1388_passage
passages.type: progene_text
passages.text: A remarkable case of displacement is seen in the Lyme disease spirochete Borrelia burgdorferi , which does not possess any of the typical HJRs , but instead encodes , in its chromosome and each of the linear plasmids , members of the lambda exonuclease family predicted to function as HJRs .