Figure 3.

Possible helix structure of AM1 at the air–water interface showing the relationship to the distributions in figure 2. Deuterated hydrophobic residues (yellow) show clear separation from the hydrophilic residues (blue), unlike proteins (e.g. figure 1). Right-handed α-helical conformations of N- and C-terminally capped peptides were generated using PepBuild (www.imtech.res.in/bvs/pepbuild/). Visual representations were generated using Protein Explorer (http://www.umass.edu/microbio/chime/pe_beta/pe/protexpl/frntdoor.htm).