2 remain not known. In this study, the potential for mobilization of 89K was evaluated, and its putative transfer system was investigated. We report that 89K can spontaneously excise to form an extrachromosomal round item. This is actually the initial demonstration of horizontal transfer of the Gram-beneficial PAI mediated by https://erickfligd.full-design.com/89k-no-further-a-mystery-72582489