The helix wheel structures were constructed by HeliQuest (http://heliquest.ipmc.cnrs.fr/). Bacteria preparation, MD simulations, antibacterial properties, toxicity assays, plasma stability, pharmacokinetic analysis, membrane permeabilization, killing kinetic assay, biofilm assays, and resistance were performed by using standard approaches. Statistical analysis was performed with GraphPad Prism 6 software or Discovery Studio 3.1. A detailed description of materials and methods and all of the necessary data can be found in the SI Appendix.