Fig 1 (IMAGE) Osaka University Caption Phylogenetic relationships among a selection of RND-type MDR transporters. Different clusters are shown in blue, and sub-clusters in dark blue. AcrB-Hi is on the left, and AcrB-Ec on the far right. Credit Osaka University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.