Structure G and H are secondary structures found using a 1b0s chain model. Structure G is a single-stranded foldamer which folds into a double helix where each strand is a 10.9 residues per helix. We discovered this structure by placing a rigid hinge residue in the center of two freely rotating strands of backbone-beads with θ B = 155 • . Both left and right hand versions of these double helix structures are observed equal frequency. Structure H is a knot-like structure found from a freely rotating strand of backbone beads with a θ B of 155.