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Dataset for: Curved or linear: Predicting the 3-dimensional structure of α-helical antimicrobial peptides in an amphipathic environment

posted on 03.12.2019, 14:49 by Glen van den Bergen, Martin Stroet, Bertrand Caron, David Poger, Alan E. Mark
α-Helical membrane-active antimicrobial peptides (AMPs) are known to act via a range of mechanisms including the formation of barrel-stave and toroidal pores, and the micellisation of the membrane (carpet mechanism). Different mechanisms imply the peptides adopt different 3D-structures when bound at the water-membrane interface, a highly amphipathic environment. Here an evolutionary algorithm is used to predict the 3D-structure of a range of α-helical membrane-active AMPs at the water-membrane interface by optimising amphipathicity. This amphipathic structure prediction (ASP) is capable of distinguishing between curved and linear peptides solved experimentally, potentially allowing the activity and mechanism of action of different membrane-active AMPs to be predicted. The ASP algorithm is accessible via a web interface at http://atb.uq.edu.au/asp/.