The structure is amphiphilic with a nonuniform surface distribution of positive charge .
The structure contains several key structural elements , including a triple - stranded , antiparallel beta sheet with strands 2 and 3 in a beta hairpin conformation .
The structure is amphiphilic with a nonuniform surface distribution of positive charge and contains several key structural elements , including a triple - stranded , antiparallel beta sheet with strands 2 and 3 in a beta hairpin conformation .