title: Alpha-helical peptides are not protonated at the N-terminus in the gas phase.
authors.affiliation: Department of Chemistry, City University of New York-Hunter College and the Graduate School, 695 Park Avenue, New York, New York 10021, USA.
authors.forename: Robert
authors.initials: R
authors.lastname: Wieczorek
authors.forename: J J
authors.initials: JJ
authors.lastname: Dannenberg
mesh_terms: D000409:Alanine / Q000737:chemistry*; D005740:Gases; D008958:Models, Molecular; D010455:Peptides / Q000737:chemistry*; D017433:Protein Structure, Secondary; D013816:Thermodynamics; D014867:Water / Q000737:chemistry
chemical_list: D005740:Gases; D010455:Peptides; D014867:Water; C019529:polyalanine; D000409:Alanine