title: Letter: Enhanced helicity of poly(alpha-L-glutamic acid) in aqueous tetraalkylammonium chloride.
mesh_terms: D005971:Glutamates; D008433:Mathematics; D010455:Peptides; D011487:Protein Conformation; D000644:Quaternary Ammonium Compounds; D012996:Solutions / Q000032:analysis
chemical_list: D005971:Glutamates; D010455:Peptides; D000644:Quaternary Ammonium Compounds; D012996:Solutions