title: A family of double helices of alternating poly(gamma-benzyl-D-L-glutamate), a stereochemical model for gramicidin A.
mesh_terms: D001593:Benzyl Compounds; D004583:Electrons; D005583:Fourier Analysis; D005971:Glutamates; D006096:Gramicidin; D006860:Hydrogen Bonding; D046911:Macromolecular Substances; D008433:Mathematics; D008958:Models, Molecular; D010455:Peptides; D011485:Protein Binding; D011487:Protein Conformation; D013816:Thermodynamics; D014961:X-Ray Diffraction
chemical_list: D001593:Benzyl Compounds; D005971:Glutamates; D046911:Macromolecular Substances; D010455:Peptides; D006096:Gramicidin